Louis J. Cabri

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Louis Jean-Pierre Cabri (born February 23, 1934 in Cairo) is an eminent [1] Canadian scientist in the field of platinum group elements (PGE) mineralogy with expertise in precious metal mineralogy and base metals at the Canada Centre for Mineral and Energy Technology (CANMET). First as Research Scientist and later as Principal Scientist (1996–1999). In the 1970s he discovered two new Cu–Fe sulfide minerals, "mooihoekite" and "haycockite". [2] In 1983 Russian mineralogists named a new mineral after him: cabriite (Pd2SnCu). [3]

Contents

Family

Louis was born in Cairo as son of Ludovicus Petrus Maria Cabri (born in Antwerp, Belgium) and Cézarinne-Marie Kahil (born in Alexandria, Egypt). His family is of Dutch Huguenot descent (from 's-Hertogenbosch, The Netherlands) [4] with its origins in Saint-Jean-du-Gard, France. [5] He is married to Canada's well-known ceramic artist Mimi Mignon De Meillon. His son Louis Andrew De Meillon Cabri is a Canadian writer and poet (New Creative Writing). [6] His daughter Annemarie was a dancer with "Het Nationale Ballet" in Amsterdam, directed Cabri Creative Dance school in Victoria, British Columbia and is now a dance educator and performer in Toronto, Ontario, Canada. Annemarie teaches for "YOUdance" [7] the outreach program of The National Ballet Company (Canada); in Victoria (BC) she directs and teaches summer programs for this ballet company ". [8] Claudia, their youngest child is a modern art painter living and working in her restaurant in Paris.

Education

Scientific Achievements

According to The Royal Society of Canada, Louis J. Cabri "...attained international eminence for his work on sulphides and tellurides, on the platinum-groupminerals, and ... for pioneering mineralogical applications of micro-beam trace-element analytical techniques such as micro-Proton-induced X-ray emission (PIXE) and Secondary-Ion Mass Spectrometry (SIMS). His fundamental work on the platinum-group minerals has brought order and understanding to a previously chaotic field of knowledge. All his work is characterized by innovative experimental approaches that have greatly advanced our knowledge and understanding of the behaviour of precious metals in Earth systems and mineral process products. ...." . [9]

He started his scientific career with many field explorations in Africa (Ghana, Sierra Leone, Zimbabwe and South Africa). Later, he pursued phase-stability and crystal-chemistry relationships in the [Cu–Fe–S] (Copper-Iron-Sulfide) System, which led to his discovery in 1972 of two new Cu–Fe sulfide minerals, "Mooihoekite" ( Cu9Fe9S16) and "Haycockite" (Cu4Fe5S8). [10] He went on researching platinum group minerals, and characterised this group and their crystal chemistry, nomenclature, geochemistry and geological occurrence. He has studied many of the world's PGM deposits, both primary and placer, for example Sudbury (Ontario), Tulameen River (British Columbia), Stillwater Complex (Montana), Itabira (Brazil), Norilsk–Talnakh (Russia), Kondyor Massif (Russia), Great Dyke (Zimbabwe), Freetown Complex (Sierra Leone), and Onverwacht, the Witwatersrand Reef and the Merensky Reef of the Bushveld Complex (South Africa). [11]

In 1983, Russian mineralogists named a new mineral after him : Cabriite (Pd2SnCu). [12]

He was chairman and president for a number of national and international geological and mineralogical associations and has chaired and co-chaired numerous technical meetings, nationally and internationally. He serves as a consultant to industry, government organizations and universities in Canada and abroad, independently since 1999, incorporated in 2004 and a principal of CNT-Mineral Consulting Inc. since 2005. [13]

Professional awards

Publications

Books

Articles

Louis Cabri has published over 200 articles about mineralogy, including:

Related Research Articles

<span class="mw-page-title-main">Pentlandite</span> Iron–nickel sulfide

Pentlandite is an iron–nickel sulfide with the chemical formula (Fe,Ni)9S8. Pentlandite has a narrow variation range in nickel to iron ratios (Ni:Fe), but it is usually described as 1:1. In some cases, this ratio is skewed by the presence of pyrrhotite inclusions. It also contains minor cobalt, usually at low levels as a fraction of weight.

The platinum-group metals (PGMs), also known as the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs), are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block.

<span class="mw-page-title-main">Great Dyke</span> Geological feature in Zimbabwe

The Great Dyke is a linear geological feature that trends nearly north-south through the centre of Zimbabwe passing just to the west of the capital, Harare. It consists of a band of short, narrow ridges and hills spanning for approximately 550 kilometres (340 mi). The hills become taller as the range goes north, and reach up to 460 metres (1,510 ft) above the Mvurwi Range. The range is host to vast ore deposits, including gold, silver, chromium, platinum, nickel and asbestos.

There are several classification systems for the economic evaluation of mineral deposits worldwide. The most commonly used schemes base on the International Reporting Template, developed by the CRIRSCO - Committee for Mineral Reserves International Reporting Standards, like the Australian Joint Ore Reserves Committee - JORC Code 2012, the Pan-European Reserves & Resources Reporting Committee' – PERC Reporting Standard from 2021, the Canadian Institute of Mining, Metallurgy and Petroleum - CIM classification and the South African Code for the Reporting of Mineral Resources and Mineral Reserves (SAMREC). A more detailed description of the historical development concerning reporting about mineral deposits can be found on the PERC web site.

Kambalda type komatiitic nickel ore deposits are a class of magmatic iron-nickel-copper-platinum-group element ore deposit in which the physical processes of komatiite volcanology serve to deposit, concentrate and enrich a Fe-Ni-Cu-(PGE) sulfide melt within the lava flow environment of an erupting komatiite volcano.

<span class="mw-page-title-main">Native metal</span> Form of metal

A native metal is any metal that is found pure in its metallic form in nature. Metals that can be found as native deposits singly or in alloys include aluminium, antimony, arsenic, bismuth, cadmium, chromium, cobalt, indium, iron, manganese, molybdenum, nickel, niobium, rhenium, selenium, tantalum, tellurium, tin, titanium, tungsten, vanadium, and zinc, as well as the gold group and the platinum group. Among the alloys found in native state have been brass, bronze, pewter, German silver, osmiridium, electrum, white gold, silver-mercury amalgam, and gold-mercury amalgam.

Cabriite (Pd2SnCu) is a mineral first found in the eastern Siberian region of Russia and named for the Canadian mineralogist Louis J. Cabri (born 1934).

Anthony James "Tony" Naldrett, FRSC was an English and Canadian geologist. He was an authority on the geology and origin of nickel-copper-platinum group element deposits, the tectonic setting in which they occur, the petrology of associated rocks, and controls on their composition. He was an expert on the reaction between sulfide and silicate melts, fractional crystallization of sulfide melts, and the role of hydrothermal fluids.

Joseph Henry Collins FGS, was a British mining engineer, mineralogist and geologist. He died at his home, Crinnis House, near St Austell, on 12 April 1916 and is buried in Campdowns cemetery, Charlestown.

<span class="mw-page-title-main">Braggite</span>

Braggite is a sulfide mineral of platinum, palladium and nickel with chemical formula: S. It is a dense, steel grey, opaque mineral which crystallizes in the tetragonal crystal system. It is the central member in the platinum group end-members cooperite and vysotskite.

Stillwaterite is a palladium arsenide mineral which has a general formula of Pd8As3. Stillwaterite was first discovered in the Banded and Upper zones of the Stillwater igneous complex in Montana, United States, and has been reported in the Lac-des-Iles area of Ontario, Canada. Outside of North America, this rare mineral has been found in northern Finland.

Mooihoekite is a copper iron sulfide mineral with chemical formula of Cu9Fe9S16. The mineral was discovered in 1972 and received its name from its discovery area, the Mooihoek mine in Transvaal, South Africa.

Skaergaardite is an intermetallic platinum group mineral with the general chemical formula PdCu. The mineral is named after its discovery location: the Skaergaard intrusion, Kangerdlugssuaq area, East Greenland. The mineral name was approved by the International Mineralogical Association in 2003. The mineral has also been reported in the Duluth intrusion in Minnesota and the Rum layered intrusion in Scotland.

<span class="mw-page-title-main">Fluckite</span>

Fluckite is an arsenate mineral with the chemical formula CaMnH2(AsO4)2·2(H2O).

Carl Michael Lesher is an American geologist. He is an authority on the geology and origin of nickel-copper-platinum group element deposits, especially those associated with komatiites, their physical volcanology and localization, the geochemistry and petrology of associated rocks, and controls on their composition.

<span class="mw-page-title-main">John Leslie Jambor</span> Canadian geologist and mineralogist

John Leslie Jambor was a Canadian geologist and mineralogist. Jambor was an exceptional figure in the field of mineralogy and a major contributor to the Mineralogical Association of Canada (MAC).
Jambor has a Scopus h-index of 38.

<span class="mw-page-title-main">Ferronickel platinum</span> Rare occurring mineral

Ferronickel platinum is a very rarely occurring minerals from the mineral class of elements (including natural alloys, intermetallic compounds, carbides, nitrides, phosphides and silicides) with the chemical composition Pt2FeNi and thus is chemically seen as a natural alloy, more precisely an intermetallic compound of platinum, nickel and iron in a ratio of 2:1:1.

Keiko Hattori is a geochemist and mineralogist. She is Distinguished University Professor of Geochemistry and Mineral Deposits in the Department of Earth and Environmental Sciences at the University of Ottawa.

References

  1. ↑ - , Louis J. Cabri, in : Induction of New Fellows, The Royal Society Of Canada, Parliament Hill, Ottawa, Canada, dd. 22 November 1996, p.2
  2. ↑ The American Mineralogist, Vol. 57, pp. 689-708.
  3. ↑ William H. BLACKBURN, Willian H. DENNEN, Encyclopedia of Mineral Names, Mineral Association of Canada, Ottawa, Canada, 1997 and T.L. ESTIGNEEVA and A.D. GENKIN, in : The Canadian Mineralogist, Montréal, Canada, 1983, Vol. 21, p.481.
  4. ↑ City Archive of 's-Hertogenbsoch, The Netherlands, DTB 1696-1874
  5. ↑ City Archives of Saint-Jean-du-Gard, France, Church Registers 1400-1700
  6. ↑ Louis co-founded the "Experimental Writing Group" (Ottawa, 1986–1995), producing literary events that include the ongoing "Transparency Machine" reading series and hole chapbooks (formerly a magazine). Since 1997, Louis curates "PhillyTalks", a poets’ dialogue/newsletter series. He wrote "The Mood Embosser" (Coach House Books, 2001) and is currently writing "Poetics of Political Economy"
  7. ↑ "You Dance". youdancecanada.ca. Archived from the original on 2007-11-14.
  8. ↑ "Cabri Creative Dance » Contact Us". www.cabricreativedance.com. Archived from the original on 2009-01-26.
  9. ↑ - , Louis J. Cabri, in : Induction of New Fellows, The Royal Society Of Canada, Parliament Hill, Ottawa, Canada, dd. 22 November 1996, p.2
  10. ↑ The American Mineralogist, Vol. 57, pp. 689-708. http://www.minsocam.org/ammin/AM57/AM57_689.pdf
  11. ↑ "CanmetENERGY - Canada's Clean and Renewable Energy Research Centre | Natural Resources Canada's CanmetENERGY" . Retrieved 2010-05-08.
  12. ↑ William H. BLACKBURN, Willian H. DENNEN, Encyclopedia of Mineral Names, Mineral Association of Canada, Ottawa, Canada, 1997 and T.L. ESTIGNEEVA and A.D. GENKIN, in : The Canadian Mineralogist, 1983, Vol. 21, p.481.
  13. ↑ "CNT Mineral Consulting :: LOUIS J. CABRI, Ph.D. P.Geo". Archived from the original on 2009-07-27. Retrieved 2010-05-03. CNT Mineral Consulting website.
  14. ↑ "Professional Geoscientists of Ontario - C". Association of Professional Geoscientists of Ontario. Retrieved 2010-05-08.
  15. ↑ "All Fellows". The Academies of Arts, Humanities and Sciences of Canada. 2009-10-18. Retrieved 2010-05-08.
  16. ↑ "Berry Medal". Mineralogical Association of Canada. Archived from the original on 2010-11-04. Retrieved 2010-05-08.
  17. ↑ Society of Economic Geologists. "Waldemar Lindgren Award: Past Recipients" . Retrieved 2020-09-27.
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