Tsavorite (original) (raw)

About TsavoriteHide

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Name:

Named proposed by Tiffany and Co. president Sir Henry Platt after the Tsavo East National Park, Kenya, which lies near where tsavorite was originally found. It was first discovered by the Scottish-born Kenyan gemologist Campbell R. Bridges (1937 – 11 August 2009), in Lemshuko, 15 km away from Komolo, in north-east Tanzania (Bridges, 1974).

The original grossular was named "cinnamon stone" ("Kanelstein" in German) in 1803 by Abraham Gottlob Werner and renamed grossularite by Werner in 1808. Named for the colour of gooseberries (Ribes grossularium) as the original specimens were this colour.

A variety of Grossular

A trade name for a green Cr- and V-bearing variety of grossular.
Major occurrences are in Kenya and Tanzania.

Five chemical types were recognized for the Neoproterozoic Metamorphic Mozambique Belt material (Feynerol et al., 2013, 2017:
- vanadian grossular, V>Cr>Mn
- vanadian grossular, V>Mn>Cr
- Mn-bearing vanadian grossular, Mn>V>Cr
- Mn-bearing chromian grossular, Mn>Cr>V
- Cr- and Mn-bearing grossular, Cr>Mn>V
The types differ in terms of their UV-VIS-IR spectra. Fe2+-Ti4+ charge transfer is possible. Trace OH groups may be present.

See also: https://www.mindat.org/article.php/4216/Tsavorite

Unique IdentifiersHide

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Mindat ID:

7836 (as Tsavorite)
1755 (as Grossular)

Long-form identifier:

mindat:1:1:7836:4 (as Tsavorite)
mindat:1:1:1755:4 (as Grossular)

53c52e1f-29ce-4659-b73c-6036c11c4657 (as Tsavorite)
a07379a9-1278-4a21-90b3-e93b735862b4 (as Grossular)

Pronunciation of TsavoriteHide

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Pronunciation:

Chemistry of TsavoriteHide

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Mindat Formula:

Ca3Al2(SiO4)3

Chemical AnalysisHide

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First Recorded Occurrence of TsavoriteHide

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Synonyms of TsavoriteHide

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Other Language Names for TsavoriteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

Other InformationHide

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Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for TsavoriteHide

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References for TsavoriteHide

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Reference List:

Feneyrol, J., Giuliani, G., Ohnenstetter, D., Le Goff, E., Malisa, E.P.J., Saul, M., Saul, E., Saul, J.M., and Pardieu, V., (2010) Lithostratigraphic and structural controls of `tsavorite’ deposits at Lemshuku, Merelani area, Tanzania. Comptes Rendus Geoscience, 342, 778-785.

Giuliani, G., Fallick, A.E., Feneyrol, J., Ohnenstetter, D., Pardieu, V. and Saul, M. (2011) 18O/16O and V/Cr ratios in gem tsavorites from the Neoproterozoic Mozambique metamorphic belt: a clue towards their origins? Mineralium Deposita, 46, 671-676.

Feneyrol, J., Ohnenstetter, D., Giuliani, G., Fallick, A. E., Rollion-Bard, C., Robert, J.-L., Malisa, E. P. (2012) Evidence of evaporites in the genesis of the vanadian grossular 'tsavorite' deposit in Namalulu, Tanzania. The Canadian Mineralogist, 50 (3) 745-769 doi:10.3749/canmin.50.3.745

Feneyrol, J., Giuliani, G., Ohnenstetter, D., Fallick, A.E., Martelat, J.E., Monié, P., Dubessy, J., Rollion-Bard, C., Le Goff, E., Malisa, E., Rakotondrazafy, A.F.M., Pardieu, V., Kahn, T., Ichang'i, D., Venance, E., Voarintsoa, N.R., Ranatsenho, M.M., Simonet, C., Omito, E., Nyamai, C., Saul, M. (2013) New aspects and perspectives on tsavorite deposits. Ore Geology Reviews, 53. 1-25 doi:10.1016/j.oregeorev.2013.01.016

Feneyrol, J., Giuliani, G., Ohnenstetter, D., Rondeau, B., Fritsch, E., Fallick, A.E., Ichang'i, D., Omito, E., Rakotondrazafy, M., Ranatsenho, M., Lallier, F. (2014) New typology and origin of tsavorite based on trace-element chemistry. European Journal of Mineralogy: 26(2): 293-308.

Giuliani, G., Feneyrol, J., Ohnenstetter, D., Pardieu, V., Marshall, D. Walton, L. Martelat, J-E. and Fallick, A.E. (2014b). Tsavorite and tanzanite deposits. In: Geology of gem deposits 2nd edition. L.E. Groat Editor. Short Course Series 44. Mineralogical Association of Canada, Québec, Canada, 217-246.

Wamunyu, A., Ichang’i, D., Nyamai, C. and Martelat, J. (2014). Geological setting, geochemistry and genesis of tsavorite deposits associated with graphitic gneisses in the Davis mine, Mwatate, Taita Taveta Region, Kenya. Abstract: IMA 2014 – 21st General Meeting, International Mineralogical Association, Johannesburg, South Africa, 280-281.

Wamunyu, A., Ichang, I, D., Guiliani, G., Martelat, J.-E. and Omito, E. (2015) Genesis of tsavorite deposits in the Davis mine, Mwatate, Southeastern Kenya. Proceedings 13th SGA biennial Meeting, 24–27 August 2015, Nancy, France 4, 1339–1342.

Feneyrol, J., Guiliani, G., Demaiffe, D., Ohnenstetter, D., Fallick, A.E., Dubessy, J., Martelat, J.-E., Rakotondrazafy, A.F.M., Omito, E., Ichang’i, D., Nyamai, C., and Wamunyu, A. (2017) Age and origin of the tsavorite and tanzanite mineralizing fluids in the Neoproterozoic Mozambique Metamorphic Belt. Canadian Mineralogist, 55, 763–786.

Martelat, J-E., Paquette, J-L., Bosse, V., Guiliani, G., Monié, P., Omito, E., Simonet, C., Ohnenstetter, D., Ichang’I, D., Nyamai, C. and Wamunyu, A. (2017) Chronological constraints on tsavorite mineralizations and related metamorphic episodes in southeast Kenya. Canadian Mineralogist, 55, 845-865.

Localities for TsavoriteHide

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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.