Hydrogrossular

Where it forms, where it's found

27recorded 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%

Literature, links & citation

Citations

1943Hutton, C.O. (1943) Hydrogrossular, a new mineral of the garnet-hydrogarnet series. Royal Society of New Zealand Transactions and Proceedings, 73, 174–180.
1957Mason, Brian (1957) Larnite, scawtite and hydrogrossular from Tokatoka, New Zealand. American Mineralogist, 42 (5-6) 379-392
1959Frankel, J. J. (1959) Uvarovite garnet and South African jade (hydrogrossular) from the Bushveld complex, Transvaal. American Mineralogist, 41 (5-6). 565-591
1964Bloxam, T. W. (1964) Hydrogrossular from the Girvan-Ballantrae Complex, Ayrshire. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (264) 814-815 doi:10.1180/minmag.1964.033.264.12 DOI: 10.1180/minmag.1964.033.264.12
1969Heflik, W., Żabiński, W. (1969) A chromian hydrogrossular from Jordanów, Lower Silesia, Poland. Mineralogical Magazine, 37 (286) 241-243 doi:10.1180/minmag.1969.037.286.12 DOI: 10.1180/minmag.1969.037.286.12

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Hydrogrossular — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/hydrogrossular-1974},
  note      = {Accessed 2026-05-11}
}