Thursday 24 February 2022

Good to be back on the Cornish Riviera Express

Two years on I am at last travelling again on the Cornish Riviera Express from Truro to London Paddington, from where I will take the Heathrow Express to the airport and then, Covid-test permitting, on to Salt Lake City tomorrow for the SME Annual Meeting, my first face to face event since the SME Meeting in Phoenix in February 2020.

Through trains from London Paddington to Penzance began running in 1867 but the Great Western Railway's Cornish Riviera Express commenced operation in 1904, after standardisation of the track gauges between Truro and London and Truro and Penzance. The 255 miles from Penzance to London is regarded as one of the world's great rail journeys particularly the stretch from Penzance to Exeter, a testament to the marvel of Victorian engineering.

It's not easy to build a railway in Cornwall, a rugged county, the remnants of the ancient Variscan Mountains. The Cornwall Railway Company constructed the line between Plymouth and Truro, which opened in 1859, and was extended to Falmouth in 1863. The 70 mile route from Truro is generally west to east, and cuts across numerous deep river valleys that generally run north-south. Under the guidance of the Victorian railway engineer Isambard Kingdom Brunel, the river crossings were made by wooden viaducts, 42 in total, replacement by masonry structures beginning in the 1870s, a few remaining in service until the 1930s.

Crossing the River Tiddy via the viaduct at St. Germans

Leaving Cornwall, the most spectacular river crossing is via Brunel's Royal Albert Bridge, opened in 1859, which crosses the River Tamar at Saltash (reputably where the Wills family originated!) and leads into Plymouth in Devon. It is adjacent to the Tamar Bridge which opened in 1962 to carry the A38 road.
The Royal Albert railway bridge in the foreground, adjacent to the Tamar road traffic bridge

Once into south Devon the scenery begins to change dramatically, and between Newton Abbot and Exeter Cornwall's ancient Devonian rocks are replaced by the softer New Red Sandstones of the Triassic, the line cutting through a number of tunnels as it runs dramatically along the coastline at Dawlish. Often under siege by winter storms it is not unusual for the English Channel waves to crash over the carriages as the train approaches nearby Exeter.

Through the sandstone cliffs at Dawlish
Photo: BBC
Winter storms
Photo: The Railway Magazine

Once past Exeter and into Somerset another major change in the landscape as the train speeds over flatter terrain on its long journey to London, passing through the flat marshlands of the Somerset Levels, which are often flooded.

Flooded Somerset Levels

This is the area of the ancient Kingdom of Wessex, where the Wessex king, Alfred the Great, hid in the swamps and marshes with his men in 878, dependent on the local people for food and shelter, whilst fighting a guerrilla-style war with the Vikings, and it was from here that Alfred set out on the successful reconquest of his kingdom.

The Truro to London journey I must have done hundreds of times, via the branch line from Falmouth to Truro, but I never tire of it. I only journey from Truro to Penzance occasionally however, but this is also a spectacular short trip, passing through the tin and copper mining areas between Redruth and Camborne, where the landscape is dotted with the ruins of 19th century engine houses.  And as at Dawlish, the trains skirts the English Channel, passing by the iconic St. Michael's Mount as it approaches Penzance.

Wheal Peevor near Redruth
Approaching Penzance. St. Michael's Mount at Marazion

If you intend to visit Cornwall then do so by rail if you can. It sure beats the road journey!

@barrywills

Tuesday 22 February 2022

Thanking you all for your kind thoughts on my retirement from Minerals Engineering journal

A massive thanks to those who have submitted comments on last week's posting where I announced my impending retirement from Minerals Engineering journal and to those of you who have been in touch by email, LinkedIn and Twitter.

I have been overwhelmed by your kind thoughts, but must clarify that my retirement is only from the journal; I will continue my involvement with MEI and the conferences, and of course the blog.

Now restrictions are easing I fully intend to travel around the world again, reporting on conferences, and hopefully, Covid-testing permitting, I will be in Salt Lake City next week for the SME Annual Meeting.

Thanks again.

Monday 21 February 2022

IntegratedMinPro '22: Final Call for Abstracts

A reminder that the second of MEI's online events this year is now only 3 months away, so if you are planning on submitting an abstract then we invite you to do so by the end of March.

Integration, Optimisation & Design of Mineral Processing Circuits (IntegratedMinPro '22) will be held online from June 13-15 2022.  This will be MEI's 1st conference of hopefully a long series.

As the demand for resources continues to increase, and amidst growing challenges of processing complex ores while minimising energy and environmental impact, we are entering an exciting time for innovation in mineral processing. Innovation in individual unit operations is complemented by innovative approaches to the entire mineral processing flowsheet, from rearrangement of an existing circuit to a new approach for a greenfield development.

This conference invites papers on new approaches to mineral processing circuits, whether through design, modelling, optimisation or operation. This includes integration of unit operations (e.g. comminution and flotation), novel flowsheets that incorporate new equipment and new approaches to optimising circuit design.

This exciting new conference will cover:

  • Optimisation and integration across different unit operations
  • The integration of new equipment into existing flowsheets
  • Circuit layout design; modelling and optimisation
  • Equipment selection methods

The conference is sponsored by Promet101 and Hudbay Minerals. Our Media Partner is International Mining, and Industry Advocates are the Coalition for Eco-Efficient Comminution (CEEC), Cornwall Mining Alliance and the Critical Minerals Association.

#IntegratedMinPro22

Friday 18 February 2022

Back to Camborne for the February Cornish Mining Sundowner

Traditionally Tyacks Hotel in Camborne has been the preserve of the Christmas Mining Sundowner, but we were back again last night, with only a small turnout of 11. This was not surprising, as a red-alert weather warning had been issued for SW England due to the approaching Storm Eunice, the 'storm of the century', which was expected to cause major travel disruption. Eunice arrived in the early hours of this morning and many rail services are now closed, including the Falmouth to Truro branch line which I used last night.

I have to admit that I have been overwhelmed this week by the response to my announcement on Monday that I would be leaving Minerals Engineering journal this year after 35 years as Editor-in-Chief. I worked with many Elsevier Publishing Managers over those years, and the longest serving was Dean Eastbury, who became a great friend to all of us at MEI, and having retired to Cornwall is now a regular at the sundowners. It was good to reminisce with him last night on the 'golden years' of the journal.

Dean with the MEI team in Cape Town in 2017

And it's always good to catch up with Carol Richards, a Director and Honorary Secretary of the Camborne School of Mines (CSM) Association. She is always busy; at the moment she is organising the next CSM Annual Dinner, which will be in Falmouth on March 19th, two days after the Falmouth sundowner at the Chain Locker.

Dean (right) with Carol, and Nigel MacDonald

Carol is also one of the Trustees at King Edward Mine Museum, only 12 miles from Falmouth, and without doubt one of the world's finest mining museums, and an absolute must for anyone interested in early mining industry. The mine was formerly part of South Condurrow Mine, which was abandoned in 1896. Re-opened and developed as a fully operational/training mine by CSM, KEM was used up to the mid 1970s when the mill became a store. In 1987 a volunteer group was formed who restored the mill using rescued machinery. There are very few, if any, places in the world where you can see 19th century gravity concentrators, such as round frames, buddles, Frue Vanners and rag frames, in operation (posting of 29 April 2019).

KEM volunteer guide Nigel MacDonald explaining the working of rag frames
 to MEI Conference delegates

Carol told me that the museum is expecting a busy summer May to September 2022. The exhibitions have been refreshed to include geology and there is a new  children's area. The museum has a big team already but is especially keen to welcome  people who would like to become  volunteer guides or work in the shop. See the  volunteer video for some of the activities that take place. If interested, please contact info@kingedwardmine.co.uk.

The next sundowner will be on Thursday March 17th, from 5.30pm at the Chain Locker pub in Falmouth.

@barrywills

Monday 14 February 2022

My farewell to Minerals Engineering after 35 years

Way back in 1987 I submitted a proposal to Pergamon Press for the establishment of a new journal to compete with Elsevier's International Journal of Mineral Processing (IJMP), which had a poor record for dealing with papers in a reasonable time.

Much to my surprise Pergamon responded enthusiastically and the first issue of Minerals Engineering was published in January 1988, with an Editorial Board of 22 leading minerals engineers from around the world, with me as Editor-in-Chief, a position I still hold today. The journal was 'officially' launched at the IMPC in Stockholm in June 1988.

The launch of Minerals Engineering in Stockholm 1988

The early years were not that easy, as we tried to establish the reputation of the new journal, and in an era where relatively few people, including members of the Editoral Board, had email; the Guide for Authors requested that manuscripts be mailed to me in triplicate, and on receipt I would mail copies to two members of the Editorial Board for review! But we managed to overcome all the early difficulties and even the take over of Pergamon Press in 1991 by its major competitor Elsevier (see posting of 8th January 2013), whose IJMP was incorporated into Minerals Engineering in January 2018. 

Volume 1 Number 1 and the journal cover after the merger with IJMP

Now, after 35 years, I feel that the time is right to pass the mantle on to the next generation, with a new Editor-in-Chief, so this will be my last year with Minerals Engineering. I will be working with Elsevier to find a suitable replacement, and when he or she is established I will be working closely with him/her throughout the year to ensure a smooth transition, and to advise on any changes that might be necessary to the editorial structure.

It has been a rewarding 35 years, during which I have seen the journal go from strength to strength and I must thank many people for this. Editorial Board members have come and gone over the years, and I thank them all, past and current, for their valuable advice when called upon.

The first meeting of the Editorial Board in Singapore, 1991:
Rob Dunne (Australia), Glen Dobby (Canada), BW, Prof. Wakamatsu (Japan), Terry Veasey (UK),
Cyril O'Connor (South Africa), Dave Osborne (Indonesia) and Don Mckee (Australia)

A special thanks must go to the hundreds (maybe even thousands) of reviewers who have given up their valuable time to referee papers, and thanks to all the authors who have had their work published over the years.

It has been a pleasure working with the new Editors who joined the journal after the merger (posting of 25 March 2021), as it has with all the Publishing Managers who I have worked with at Elsevier.  The longest serving of these was Dean Eastbury, who became a familiar face at MEI Conferences, and a great friend of mine and the family. He is now retired in south-west Cornwall and we will certainly miss his company in all our travels with the conferences.

Dean and I hard at work in Franschhoek, South Africa and climbing Table Mountain with the MEI team

I wish the journal and its editors every success for the future.

@barrywills

Thursday 10 February 2022

New book: Recovery and Recycling of Valuable Metals

This is a hot topic at the moment, with the demand for critical and valuable metals increasing and it will be a major feature at Sustainable Minerals '22 in July.


This new volume, edited by Dariush Azizi, and published last month, is a printed edition of the Special Issue that was published in the journal Metals. The aim of the special issue was to collect a range of articles covering different aspects of valuable metal recovery and recycling from primary and secondary sources. The objective was to decipher all new methods, processes and knowledge in the production of valuable metals from various sources. 

Seventeen articles were featured in the Special Issue, encompassing the fields of mineral processing and extractive metallurgy. These articles cover a wide range of topics in the field and provide some ideas for active researchers who are working on the production of valuable metals from primary and secondary resources.

Hopefully we will hear from some of these researchers at Sustainable Minerals '22.

#SustainableMinerals22

Monday 7 February 2022

New Challenges for Gravity Concentration and Classification of Fine Particles

“The net zero emission” mantra may prove to become the new “mother of invention” for minerals processing, says Prof. Kevin Galvin, Director of the ARC Centre of Excellence for Enabling Eco-Efficient Beneficiation of Minerals at the University of Newcastle, Australia, where he is Laureate Professor. 

Prof. Galvin is the inventor of the Reflux Classifier used in gravity separation of fine particles. With over 180 installations around the world, the technology has been used to beneficiate coal, iron ore, mineral sands, potash, chromite, and other base metal oxides. New innovative systems are emerging including the Graviton and the Reflux Flotation Cell through collaboration with FLSmidth. He has also been developing a novel agglomeration technology with Jord International.  He is a Fellow of the Australian Academy of Science and Australian Academy of Technology and Engineering and previous recipient of numerous awards including the Antoine Gaudin Award in mineral processing, so we are honoured that he has accepted an invitation to present a keynote lecture at Physical Separation '22 in May.

Kevin Galvin (right) at Flotation '13

The need for change is locked in, and rising, providing the ideal platform for creating new opportunities, especially in gravity concentration and classification. The challenge is to identify and deliver what is required and Kevin's keynote lecture will be concerned with the gravity concentration and classification of particles in water, involving particles typically finer than 1.0 mm. One of the greatest challenges is in delivering large scale, highly efficient, desliming at ~10 microns to overcome the effects of viscosity, and in turn maximize the value of the resource. This need is most apparent in one of the world’s most significant commodities, iron ore.  

There should also be a much greater role for gravity concentration across this full‐size range, increasingly in the range below 0.1 mm, the historical preserve of flotation. If the particle density can deliver sufficient selectivity, then in principle gravity concentration should be considered. This is especially true in reverse flotation which requires a multi‐stage flowsheet, very large foot‐print, and chemicals to deliver what could be achieved in a single physical stage of gravity concentration.

Mechanisms for amplifying segregation forces, including G forces and inclined settling, need to be exploited to deliver the necessary solids throughput.  Classification will be challenged by the emerging requirements for both gravity concentration, comminution, and coarse/fine particle flotation circuits in straddling the size range from 1.0 to 0.1mm through 0.1 to 0.01 mm. 

While in principle mechanical screens offer the ideal classification, the hydrodynamic approach may ultimately deliver the robustness, control, throughput, and efficiency despite the variation in separation size with particle density, provided synergy can be realised by integrating correctly within the overall circuit.

Prof. Galvin's keynote will be one of two keynotes at the conference; Prof. Neil Rowson will discuss the role of magnetic separation in the development of critical and strategic metal recovery flowsheets (posting of 25 October 2021).

There is currently a final call for abstracts for Physical Separation '22, which should be submitted by the end of this month.

#PhysicalSeparation22

Friday 4 February 2022

The “Mines of King Solomon” – Examining the Legend

Virtually everyone in mineral engineering will know of the legendary King Solomon’s Mines, an enduring puzzle down the ages. This reconstruction is contributed by Dr Franklin White. Franklin is the author of the biography of his father, Miner with a Heart of Gold (posting of 21st September 2020). This article is based largely on the background notes of his late father Prof Frank White, whose avocation was mining history. While he published articles on this topic in a Masonic journal[1], Franklin  takes responsibility for this reconstruction, including reference to ongoing archaeology.     

Solomon, third and last king of a united Hebrew state, lived from c.970 - 931 BCE. The biblical story is considered mostly legend and myth; archaeological confirmation is extremely sparse. Popular interest was piqued by 19th century novelist H. Rider Haggard in his “King Solomon’s Mines”. 

Biblical accounts describe his fabulous wealth in precious metals and jewels[2] Of his legendary temple, “he overlaid (it) with gold…; also, the whole altar … overlaid with gold”.  He made “300 shields of beaten gold, and a great throne of ivory overlaid with gold: and all of his drinking vessels were of gold”. Solomon collected 666 talents (c.800,000 oz) of gold in annual tributes! 

There is even more to Solomon of interest to mining historians than gold and precious metals. For example, the description of how stones were obtained for building his temple: 

“When the house was built, it was with stones prepared at the quarry; so that neither hammer or axe nor any tool of iron was heard in the temple, while it was being built”. 

Reference to iron suggests a technologically advanced society, while research on the period reveals an early system of commerce, significantly based on forced labour (slavery). 

It is traditionally assumed that Solomon’s wealth derived from mines he owned.  Against this stands the diversity of his mineral wealth: gold, silver, copper, its alloys with zinc and tin (brass, bronze), iron, turquoise, lapis lazuli, marble and limestone, among others. Mineralogists assert that the Hebrew state was not sufficiently mineralised to account for this. To elucidate further, one must explore the nature of his kingdom. 

Solomon served the political interests of ancient Israel well. By marrying the Pharoah’s daughter, he secured his southern boundary with Egypt. The erection of “high places” for worship of deities of Zidon, Moab and Ammon reflects other marriages (he had many) that secured cordial relations with their peoples. He extended King David’s alliance with Hiram, King of Tyre, thereby securing safe access to the Mediterranean; his shipping fleet employed Hiram’s Phoenician navigators. His use of a port at the head of the Gulf of Akaba implies territorial control on his south-east border and engagement with Arabia.  Imports were so lavish that Solomon made “silver as common as stones and cedars as common as sycamores”.  Israel thereby enjoined Mediterranean commerce and Jerusalem became a powerful city-state.

That the emperors of Egypt, Sumer and Mesopotamia were also fabulously wealthy, is confirmed by archaeology and translations of ancient texts: Pythius, a Persian with his treasure of ~85,000 oz of gold; booty captured by Emperor Trojan from the Dacians included 6 million oz of gold; and treasure of 3,850,000 oz of gold left by Byzantine Emperor Anastasius on his death; gold artifacts discovered in tombs of Ur of the Chaldees, Tutankhamen, and others.  

Egypt, 4,000 - 2,000 BCE, is considered the first civilisation to develop gold mining and refining. Upper Egypt, Nubia and Ethiopia were sources.  Grave goods reveal technologies for recovery from alluvial deposits, for cleaning, refining and smelting. Gold-bearing quartz veins were mined underground, with recovery by hand milling at the surface. A quarry and gold mine are depicted in the Turin papyrus, the first known geological map (c.1,150 BCE)[3].

Arabia was another early source of gold: from the Gulf of Akaba's eastern shore including Midian and upper Yemen, the latter associated with Saba and legendary “Sheba” who traveled to Jerusalem to meet Solomon, bearing precious stones, spices and gold. Arabian origins are also likely for minerals such as lapis lazuli (“sapphire” of the Bible), malachite and azurite, marble and limestone. Coastal trade explains their use in Ur, Israel, Egypt and Mesopotamia. 

A maritime route alone could not have tapped all sources of mineral and metal wealth held by Egypt, so land routes were needed for deposits in the Arabian interior, the Caucasus, and Asia Minor. This is established for iron which, from 15th century BCE, was being converted into steel by the Chalybes, a tribe living near the Black Sea under subjugation to the Hittites, a Mesopotamian kingdom, whose steel weapons helped maintain their military dominance. 

Legendary “Ophir” has attracted controversy.  “Hiram… brought gold from Ophir” and Jehosaphat “made ships of Tarshish to go to Ophir for gold”. Under Solomon’s charter, it is said that a fleet returned bringing “gold, silver, ivory, and apes and peacocks”.  Some scholars place Ophir between Zambesi and Limpopo Rivers. Of significance is a capstone mold for casting metal bars, found at Great Zimbabwe, corresponding in shape with a hieroglyphic on Rameses’ temple at Medinet Habu, suggesting refining and transport in bar form to Egypt; a furnace and crucible have been found. There is a Mount Ophir in the Malay Peninsula (in Negri Sembilan). Fifteenth and 16th century Portuguese writers associate it with the “Golden Chersones” (Malay Archipelago); others hypothesize Tamraparni (aka Serendib, Sri Lanka now).  Some argue that “Ophir” may refer to gold refined to a particular quality, from multiple sources. 

Then there is the enigmatic “Land of Punt”, an ancient commercial centre.  Numerous Egyptian expeditions as early as 25th century BCE, show (in reliefs) tropical and semi-tropical products, along with gold.  Most scholars place Punt in the Horn of Africa, but if Punt was “Ophir”, an East African location might align with an alleged circumnavigation during Solomon’s reign that took 3 years via Tarshish (now Tarsessus, Spain), West Africa and the Cape of Good Hope.  

Biblical references to use of “obsian stone” (obsidian or volcanic glass) in Israel, a non-volcanic country, also suggests trade with areas where it naturally existed e.g., Namrud Dagh in the Armenian Mountains, Alagoz in the Caucasus, and highlands of Abyssinia.

Limestone and marble, widely used in this ancient world, were quarried in the Nile Valley. Ruins in Cyprus derive from this source, reflecting trade in these materials. Sandstone came from Lower Egypt, Sudan, and Nubia.  Serpentine was mined on the Red Sea coast and near Babylon. While quarrying was preferred, underground mining was developing: camps associated with early mining sites have yielded stone hammers, pounding stones, chisels and wedges, flint borers and planning tools; slag heaps prove that smelting was carried out.

Copper, along with brasses and bronzes (alloys with zinc and tin), was in use by 2,500 BCE.  Copper mining in Egypt’s Mount Sinai region flourished, becoming important for copper following attempts to obtain turquoise there during the reign of King Sempeses (c.3,000 BCE), and by 2,400 BCE, regular expeditions were undertaken. By Solomon’s time, these included thousands of Canaanite miners, smelters and smiths of Kenite, Edomite and Midianite tribes, with soldiers for control and protection. In addition to turquoise and semi-precious stones e.g., malachite, azurite, they returned with refined copper. Copper was also mined in the Sudan and southern Egypt (near Wadi Halfa and Wadi Hammamat); these mines were larger than at Sinai.

It is possible that Cyprus (whose name means “copper”) may have been the most productive location for copper during Solomon’s reign. Phoenicians engaged in a copper trade with that island. They also traded with the “Cassiterides” (Cornwall and the Scilly Isles and/or neighbouring France) for tin, zinc and copper used in the manufacture of bronze and brass for cultural and building applications.

Scientific controversy and public interest was aroused in 1935, when archaeologist Rabbi Nelson Glueck attributed early copper mining at Israel’s Timna Valley, to King Solomon[4].  In 2006, Thomas Levy and team excavated an ancient copper-production centre through >20 feet of slag: carbon dating placed artifacts from this site in the 10th century BCE, in line with biblical narratives on Solomon’s rule[5]. More recently, a team led by Erez Ben-Yousef, found new evidence of furnaces used to smelt copper, and remnants of clothing, ceramics, fabrics, tools, and food items, indicating a well-developed settlement[6]. Radiocarbon dating confirmed their age to 10th century BCE. However, there is no evidence that Solomon or his people built the mines. Evidence suggests the Edomites, who were frequently at war with Israel during this period. 

Conclusion: Ancient Israel had only limited mineral deposits. Aside from evidence of copper mining, which may not have been under Solomon’s control, there is no factual basis for the “King Solomon’s Mines” of myth and legend. Solomon’s was an efficient trading nation, well able to obtain bountiful supplies through diplomatic, commercial and military alliances.

Note of Caution: In linking evidence to legend, one must be alert to “confirmation bias”: a tendency to seek information consistent with existing beliefs, while ignoring inconsistent data.

 Selected References

1. White FTM. The Mines of King Solomon Part I, The Ashlar, pp 25-27 September 1964; Part II pp 6-7 December 1964; Part III pp 7-8 March 1965. University of Queensland Lodge.

2. Biblical quotations are mostly from 1 Kings and 2 Chronicles.

3. Hessler P. World's First Geologic Map Was Far Ahead of Its Time. National Geographic (on-line). July 25, 2016.

4. Maranzani B. 2013. The search continues for King Solomon’s Mines. History (on-line). Updated: April 17, 2020.

5. Levy TE, Higham T, Ramsey CB, et al. High-precision radiocarbon dating and historical biblical archaeology in southern Jordan. Proc Nat Acad Sci 2008; 105,43: 16460–65.

6. Ben-Yosef E, Shaar R, Tauxe L, et al. A New Chronological Framework for Iron Age Copper Production at Timna (Israel). Bulletin of the American Schools of Oriental Research 2012; 367:31-71.

Tuesday 1 February 2022

January: is the end of the pandemic and the collapse of the House of Cards in sight ?

January was a month where increasing tensions between Russia and Ukraine, the crisis in Afghanistan and the UK's critical cost of living crisis were of crucial importance, but once again it was revelations of more lockdown parties taking place in Downing Street which dominated the news headlines.

With over 155,000 deaths recorded in UK since the start of the pandemic Prime Minister Boris Johnson was in more trouble with the revelation that in May 2020, during the first lockdown, where people in England could meet only one person outside and large gatherings (such as the Cornish Mining Sundowner) were banned, dozens of Downing Street staff were invited to a drinks party to celebrate the "lovely weather". Around 40 people were thought to have joined the "bring your own booze" party, including the PM and his wife. When asked whether he and his wife attended, Johnson replied that that was the subject of a proper investigation! So rather than a plain yes or no, we were asked to wait for the result of the inquiry by senior civil servant Sue Gray,  ordered by him to determine whether he attended a party at his house! There was real anger expressed by the many people who were unable to see dying loved ones, or to attend their funerals, at the time of the event, and he eventually apologised in the Commons, accepting that he did attend the event, but that he he was under the impression that it was a 'work gathering' rather than a party!

My very own BYO booze sundowner at Falmouth's Chain Locker
the day after the Downing Street party

A few days later there were more calls for him to quit after reports emerged that aides drank and danced at two No 10 leaving parties on the eve of the Duke of Edinburgh’s funeral last April, when Britain was in national mourning and indoor socialising between households was banned. A week later more revelations of boozy parties at No. 10 increased the pressure on the PM with calls to resign. And then only last week, a damning revelation that in June 2020, when indoor mixing was illegal, a party to celebrate his 56th birthday was attended by 30 people in the Downing Street cabinet room, and his wife even supplied a cake for the occasion!

During the whole month the public has listened with growing incredulity to Johnson's increasingly implausible explanations of the numerous lockdown parties and last week it was announced that the Metropolitan Police would conduct its own inquiry into illegal gatherings at Whitehall. Sue Gray's heavily redacted report was made public yesterday afternoon finding 'failures of leadership and judgment' over Whitehall parties but the police inquiry delayed a 'meaningful report'. 

In truth, although the 'update' was damning, few minds will be changed, as there was little there that the public didn't already know. Johnson faced a torrid time in Parliament yesterday where he was shamed by former Prime Minister Theresa May and utterly damned by the eloquence of a 7 minute speech by Labour Leader Keir Starmer. In an abysmal performance Johnson told MPs that he accepted the report and would make changes to how no. 10 is run, but despite further calls to do so there were no thoughts of resigning.

The UK wasn't the only country last month with cries of one rule for them and another for us. Across the world in Australia there was outcry when the world's number 1 tennis player, Novak Djokovik, was eventually granted access to the country to compete in the Australian Open despite being unvaccinated and citizens of Melbourne having been under one of the world's most rigid lockdowns for many months. A few days later his visa was revoked so it was hard to say who was having the worst week in mid-January, Djokovic, Johnston, or Prince Andrew (I suspect the latter) who had been stripped of his  military titles and royal patronages by the Queen as a judge in the USA ruled that a sexual abuse civil lawsuit against the Queen's son could proceed.

At the beginning of the month the Government decided that there would be no further restrictions to its Plan B despite soaring Omicron infections putting a huge strain on the NHS and schools. Hospital admissions plateaued by the middle of the month, suggesting to some that the end of the pandemic might be in sight and Plan B restrictions were removed last week and travel restrictions eased further with no Covid tests required before entering UK, so we were optimistic that travel may be on again and Jon was the first of the MEI team to venture overseas, with a trip to the USA.

Jon at Mount Batchelor, Oregon

Will we be back to face-to-face conferences this year? I hope so, and we plan to hold Process Mineralogy '22 in the first week of November in Sitjes, Spain. But before then I intend to test the water this month and have registered for the SME Annual Meeting in Salt Lake City at the end of the month. My last venture overseas was to the SME Meeting in Phoenix in February 2020 so it will be interesting to see the response to the slow return to face to face events.

@barrywills