Louis J. Cabri
Encyclopedia
Louis Jean-Pierre Cabri is an eminent 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 1970 he discovered two new Cu–Fe sulfide minerals, "Mooihoekite
" and "Haycockite". In 1983 he discovered another new mineral, named after him : Cabriite
(Pd2SnCu).
, Egypt). His family is of Dutch Huguenot
descent (from 's-Hertogenbosch, The Netherlands) with its origins in Saint-Jean-du-Gard
, France. He is married to Canada's well known sculptor and modern art painter Mimi Mignon de Meillon. His son Louis Jr. is a Canadian writer and poet (New Creative Writing). . 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. Anne-marie teaches for "YOUdance"
the outreach program of The National Ballet Company (Canada); in Victoria (BC) she directs and teaches summer programs for this ballet company "
. Claude is a modern art painter living and working in Paris.
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). 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).
In 1984 he discovered another new mineral, named after him : Cabriite
(Pd2SnCu).
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.
Platinum group
The platinum group metals is a term used sometimes to collectively refer to six metallic elements clustered together in the periodic table.These elements are all transition metals, lying in the d-block .The six...
(PGE) mineralogy with expertise in precious metal
Precious metal
A precious metal is a rare, naturally occurring metallic chemical element of high economic value.Chemically, the precious metals are less reactive than most elements, have high lustre, are softer or more ductile, and have higher melting points than other metals...
mineralogy
Mineralogy
Mineralogy is the study of chemistry, crystal structure, and physical properties of minerals. Specific studies within mineralogy include the processes of mineral origin and formation, classification of minerals, their geographical distribution, as well as their utilization.-History:Early writing...
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 1970 he discovered two new Cu–Fe sulfide minerals, "Mooihoekite
Mooihoekite
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.-Crystal structure and optical properties:...
" and "Haycockite". In 1983 he discovered another new mineral, named after him : Cabriite
Cabriite
Cabriite is a mineral first found in the eastern Siberian region of Russia and named for the Canadian mineralogist Louis J. Cabri....
(Pd2SnCu).
Family
Louis was born in Cairo as son of Ludovicus Petrus Maria Cabri (born in Antwerp, Belgium) and Cézarinne-Marie Kahil (born in AlexandriaAlexandria
Alexandria is the second-largest city of Egypt, with a population of 4.1 million, extending about along the coast of the Mediterranean Sea in the north central part of the country; it is also the largest city lying directly on the Mediterranean coast. It is Egypt's largest seaport, serving...
, Egypt). His family is of Dutch Huguenot
Huguenot
The Huguenots were members of the Protestant Reformed Church of France during the 16th and 17th centuries. Since the 17th century, people who formerly would have been called Huguenots have instead simply been called French Protestants, a title suggested by their German co-religionists, the...
descent (from 's-Hertogenbosch, The Netherlands) with its origins in Saint-Jean-du-Gard
Saint-Jean-du-Gard
Saint-Jean-du-Gard is a commune in the Gard department in southern France.-History:This city of the Cévennes, first mentioned in a 12th century papal bull , was very much influenced by Protestantism in the 16th century and became the Mecca of the camisards' resistance.Thanks to the silk industry,...
, France. He is married to Canada's well known sculptor and modern art painter Mimi Mignon de Meillon. His son Louis Jr. is a Canadian writer and poet (New Creative Writing). . His daughter Annemarie was a dancer with "Het Nationale Ballet" in Amsterdam
Amsterdam
Amsterdam is the largest city and the capital of the Netherlands. The current position of Amsterdam as capital city of the Kingdom of the Netherlands is governed by the constitution of August 24, 1815 and its successors. Amsterdam has a population of 783,364 within city limits, an urban population...
, directed Cabri Creative Dance school in Victoria, British Columbia
Victoria, British Columbia
Victoria is the capital city of British Columbia, Canada and is located on the southern tip of Vancouver Island off Canada's Pacific coast. The city has a population of about 78,000 within the metropolitan area of Greater Victoria, which has a population of 360,063, the 15th most populous Canadian...
and is now a dance educator and performer in Toronto, Ontario, Canada. Anne-marie teaches for "YOUdance"
the outreach program of The National Ballet Company (Canada); in Victoria (BC) she directs and teaches summer programs for this ballet company "
. Claude is a modern art painter living and working in Paris.
Education
- 1954 : B.Sc. (Geology and Chemistry) — University of the WitwatersrandUniversity of the WitwatersrandThe University of the Witwatersrand, Johannesburg is a South African university situated in the northern areas of central Johannesburg. It is more commonly known as Wits University...
- 1955 : B.Sc. (Geology — Honours) — University of the WitwatersrandUniversity of the WitwatersrandThe University of the Witwatersrand, Johannesburg is a South African university situated in the northern areas of central Johannesburg. It is more commonly known as Wits University...
- 1961 : M.Sc. (Appld) — McGill UniversityMcGill UniversityMohammed Fathy is a public research university located in Montreal, Quebec, Canada. The university bears the name of James McGill, a prominent Montreal merchant from Glasgow, Scotland, whose bequest formed the beginning of the university...
- 1965 : Ph.D. — McGill UniversityMcGill UniversityMohammed Fathy is a public research university located in Montreal, Quebec, Canada. The university bears the name of James McGill, a prominent Montreal merchant from Glasgow, Scotland, whose bequest formed the beginning of the university...
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) andSecondary-Ion Mass Spectrometry (SIMS). His fundamental work on the platinum-groupminerals has brought order and understanding to a previously chaotic field of knowledge. All his work is characterized by innovative experimental approaches that have greatly advancedour knowledge and understanding of the behaviour of precious metals in Earth systems and mineral process products. ...." .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
Mooihoekite
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.-Crystal structure and optical properties:...
" ( Cu9Fe9S16) and "Haycockite" (Cu4Fe5S8). He went on researching platinum group
Platinum group
The platinum group metals is a term used sometimes to collectively refer to six metallic elements clustered together in the periodic table.These elements are all transition metals, lying in the d-block .The six...
minerals, and characterised this group and their crystal chemistry
Crystal chemistry
Crystal chemistry is the study of the principles of chemistry behind crystals and their use in describing structure-property relations in solids...
, nomenclature
Nomenclature
Nomenclature is a term that applies to either a list of names or terms, or to the system of principles, procedures and terms related to naming - which is the assigning of a word or phrase to a particular object or property...
, geochemistry
Geochemistry
The field of geochemistry involves study of the chemical composition of the Earth and other planets, chemical processes and reactions that govern the composition of rocks, water, and soils, and the cycles of matter and energy that transport the Earth's chemical components in time and space, and...
and geological occurrence. He has studied many of the world’s PGM deposits, both primary
Primary
The word Primary when used alone may refer to any of the following:* Primary , the larger of two co-orbiting bodies* Primary is used for the name of the primary mirror in a telescope.* Primary , from Australia...
and placer
Placer deposit
In geology, a placer deposit or placer is an accumulation of valuable minerals formed by gravity separation during sedimentary processes. The name is from the Spanish word placer, meaning "alluvial sand". Placer mining is an important source of gold, and was the main technique used in the early...
, for example Sudbury (Ontario), Tulameen River
Tulameen River
The Tulameen River is a tributary of the Similkameen River in the Canadian province of British Columbia. The Tulameen River is part of the Columbia River drainage basin, being a tributary of the Similkameen River, which flows into the Okanagan River, which flows into the Columbia River.-Course:The...
(British Columbia), Stillwater Complex (Montana), Itabira
Itabira
Itabira is a Brazilian municipal district and one of the main cities of the state of Minas Gerais. The city belongs to the mesoregion Metropolitana de Belo Horizonte and to the microregion of Itabira....
(Brazil), Norilsk
Norilsk
Norilsk is an industrial city in Krasnoyarsk Krai, Russia, located between the Yenisei River and the Taymyr Peninsula. Population: It was granted city status in 1953. It is the northernmost city in Siberia and the world's second largest city north of the Arctic Circle...
–Talnakh (Russia), Kondyor Massif
Kondyor Massif
The Kondyor Massif is a perfect circular intrusion, about in diameter, in Khabarovsk Krai, Far Eastern Federal District, Russian Federation, roughly west-to-southwest of Okhotsk, or some south-east of Yakutsk. It is reached from Yakutsk by road via Amga...
(Russia), Great Dyke
Great Dyke
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 . The hills become taller as the range goes north, and...
(Zimbabwe), Freetown Complex (Sierra Leone), and Onverwacht
Onverwacht
Onverwacht is a capital town of Para District, Suriname. It is located at around . The locality is notable for finding of some of the earliest known evidence of bacteria is in Onverwacht shales, dating to several billion years before present.-References:* C.Michael Hogan. 2010. . eds. E.Monosson...
, the Witwatersrand
Witwatersrand
The Witwatersrand is a low, sedimentary range of hills, at an elevation of 1700–1800 metres above sea-level, which runs in an east-west direction through Gauteng in South Africa. The word in Afrikaans means "the ridge of white waters". Geologically it is complex, but the principal formations...
Reef and the Merensky Reef
Merensky Reef
The Merensky Reef, is a layer of igneous rock in the Bushveld Igneous Complex in the Transvaal which together with an underlying layer, the Upper Group 2 Reef , contains most of the world's known reserves of platinum group metals or platinum group elements - platinum, palladium, rhodium,...
of the Bushveld Complex
Bushveld igneous complex
The Bushveld Igneous Complex is a large layered igneous intrusion within the Earth's crust which has been tilted and eroded and now outcrops around what appears to be the edge of a great geological basin, the Transvaal Basin. Located in South Africa, the BIC contains some of the richest ore...
(South Africa).
In 1984 he discovered another new mineral, named after him : Cabriite
Cabriite
Cabriite is a mineral first found in the eastern Siberian region of Russia and named for the Canadian mineralogist Louis J. Cabri....
(Pd2SnCu).
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.
Professional awards
- Selwyn Blaylock MedalSelwyn G. Blaylock MedalThe Selwyn G. Blaylock Medal was established in 1948 and is awarded annually by the Canadian Institute of Mining, Metallurgy and Petroleum to an individual that has demonstrated distinguished service to Canada through exceptional achievement in the field of mining, metallurgy, or geology.The medal...
, Canadian Institute of Mining & MetallurgyCanadian Institute of Mining, Metallurgy and PetroleumThe Canadian Institute of Mining, Metallurgy and Petroleum is a technical society of professionals in the Canadian minerals, metals, materials and energy industries. It was founded in 1898. In 2006, the organization had 12,000 national members...
(2004) - P.Geo. - Association of Professional Geoscientists of Ontario (2002)
- Fellow, Royal Society of CanadaRoyal Society of CanadaThe Royal Society of Canada , may also operate under the more descriptive name RSC: The Academies of Arts, Humanities and Sciences of Canada , is the oldest association of scientists and scholars in Canada...
(2001) - Leonard G. Berry Medal, Mineralogical Association of Canada (1993)
Books
- 2002 The Geology, Geochemistry, Mineralogy, and Mineral Beneficiation of the Platinum-Group Elements. Edited by L.J. Cabri. Canadian Institute of Mining, Metallurgy and Petroleum, Special Volume 54, 852 pages.
- 1999 Analytical Technology in the Mineral Industries, Proceedings 128th TMS Annual Meeting & Exhibition, Eds.: L.J. Cabri, C.H. Bucknam, E.B. Milosavljevic, S.L. Chryssoulis and R. A. Miller (Warrendale, PA: The Minerals, Metals, and Materials Society, 1999), 281 pages.
- 1998 Advanced Methods in Ore and Environmental Mineralogy, Eds. L.J. Cabri & D.J. Vaughan, Mineralogical Association of Canada, Short Course Volume 27, 434 pages.
- 1981 Platinum-Group elements: Mineralogy, Geology, Recovery, Editor and principal contributor, CIM Special Volume 23, 267 pages. 2nd edition reprinted 1989.
Articles
Louis Cabri has published over 200 articles about mineralogy, including:- McDonald, A.M., Proenza, J.A., Zaccarini, F., Rudashevsky, N.S., Cabri, L.J., Stanley, C.J., Rudashevsky, V.N., Melgarejo, J.C., Lewis, J.F., Longo, F. and Bakker, R.J. (2010). Garutiite, (Ni,Fe,Ir), a new hexagonal polymorph of native Ni from Loma Peguera, Dominican Republic. European Journal of Mineralogy, 22, 293-304.
- Cabri, L.J., Choi, Y., Nelson, M., Tubrett, M., & Sylvester, P.J. (2010) Advances in Precious Metal Trace Element Analyses for Deportment using LAM-ICPMS, in Proceedings of 42nd Annual meeting of The Canadian Mineral Processors, 181-196.
- Cabri, L.J., Martin, C.J., & Nelson, M. (2009) Deportment methodology for low-grade Ni-Cu-PGE ores. Proceedings of 48th Conference of Metallurgists, (eds. C. Hamilton, B. Hart & P.J. Whittaker), 3-15.
- Zaccarini, F., Proenza, J.A., Rudashevsky, N.S., Cabri, L.J., Garuti, G., Rudashevsky, V.N., Melgarejo, J.C., Lewis, J.F., Longo, F., Bakker, R.J., and Stanley, C.J. (2009) The Loma Peguera ophiolitic chromitite (Central Dominican Republic): a source of new platinum group mineral (PGM) species. N. Jb. Miner. Abh., 185/3, 335-349.
- Thorne, K.G., Lentz, D.R., Hoy, D., Fyffe, L.R., and Cabri, L.J. (2008) Characteristics of Mineralization at the Main Zone of the Clarence Stream Gold Deposit, Southwestern New Brunswick, Canada: Evidence for an Intrusion-Related Gold System in the Northern Appalachian Orogen. Exploration and Mining Geology, Vol. 17, Nos. 1–2, p. 13–49.
- Oberthür, T., Melcher, F., Sitnikova, M., Rudashevsky, N.S., Rudashevsky, V.N., Cabri, L.J., Lodziak, J. Klosa, D. and Gast, L. (2008) Combination of Novel Mineralogical Methods in the Study of Noble Metal Ores – Focus on Pristine (Bushveld, Great Dyke) and Placer Platinum Mineralisation. Ninth International Congress for Applied Mineralogy ICAM 2008. The Australasian Institute of Mining and Metallurgy, Publication Series No 8/2008, 187-194.
- K Kojonen, K., Cabri, L.J., McMahon, G., Johanson, B., Leppinen, J. and Kalapudas, R. (2008) Applied Mineralogy of the Suurikuusikko Refractory Gold Deposit, Northern Finland. Ninth International Congress for Applied Mineralogy ICAM 2008. The Australasian Institute of Mining and Metallurgy, Publication Series No 8/2008, 277-284.
- Cabri, L.J., Y. Choi, C. H. Hamilton, P. Kondos, and R. Lastra (2008) Hydroseparation concentrates and automated precious metal searches used to characterise process products from selected mines. Ninth International Congress for Applied Mineralogy ICAM 2008. The Australasian Institute of Mining and Metallurgy, Publication Series No 8/2008, 261-264.
- Cabri, L.J., Rudashevsky, N.S., Rudashevsky, V.N. (2008) Current approaches for the process mineralogy of platinum-group element ores and tailings. Ninth International Congress for Applied Mineralogy ICAM 2008. The Australasian Institute of Mining and Metallurgy, Publication Series No 8/2008, 9-17.
- McDonald, A.M., Cabri, L.J., Rudashevsky, N.S., Stanley, C.J., Rudashevsky, V.N. and Ross, K.C. (2008) Nielsenite, PdCu3, a new platinum-group intermetallic mineral from the Skaergaard Intrusion, Greenland. Canadian Mineralogist, 46, 709-716.