Tsavorite

Where it forms, where it's found

Type locality: Lemshuku tsavorite mining district
Simanjiro District
Manyara Region
Tanzania
-3.8603°, 36.8544°

26recorded occurrences

Source · OpenStreetMap

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 12 15.999 191.988
42.62%
20CaCalcium Calcium 3 40.078 120.234
26.69%
14SiSilicon Silicon 3 28.085 84.255
18.71%
13AlAluminium Aluminium 2 26.982 53.964
11.98%
Total 450.441 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
8OOxygen	Oxygen	12	15.999	191.988	42.62%
20CaCalcium	Calcium	3	40.078	120.234	26.69%
14SiSilicon	Silicon	3	28.085	84.255	18.71%
13AlAluminium	Aluminium	2	26.982	53.964	11.98%
	Total	450.441	100.00%

Synonyms

Tsavolit
Tsavolita
Tsavolite
Tsavorit
Tsavorita

Literature, links & citation

Citations

1974Bridges, C.R., (1974) Green grossularite garnets (‘tsavorites’) in East Africa. Gems & Gemology, 14, 290-295.
1990Kane, Robert E., Kampf, Anthony R., Krupp, Horst (1990) Well-Formed Tsavorite Gem Crystals from Tanzania. Gems & Gemology, 26 (2) 142-148 doi:10.5741/gems.26.2.142DOI: 10.5741/gems.26.2.142
1995GIA Gem Reference Guide (1995).
2009www.tsavorite.com (n.d.) http://www.tsavorite.com/history/history.html
2010Pardieu, V., Jacquat, S. and Bryryl, L.P. (2010) Tsavorite mining at Namalulu, northern Tanzania. Gems and Gemology, 46, 67-68.

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Tsavorite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/tsavorite-7836},
  note      = {Accessed 2026-05-11}
}