Hiddenite

Where it forms, where it's found

17recorded occurrences

Source · OpenStreetMap

Physical

Colour: Green

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 6 15.999 95.994
51.59%
14SiSilicon Silicon 2 28.085 56.170
30.18%
13AlAluminium Aluminium 1 26.982 26.982
14.50%
3LiLithium Lithium 1 6.940 6.940
3.73%
Total 186.086 100.00%
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	6	15.999	95.994	51.59%
14SiSilicon	Silicon	2	28.085	56.170	30.18%
13AlAluminium	Aluminium	1	26.982	26.982	14.50%
3LiLithium	Lithium	1	6.940	6.940	3.73%
	Total	186.086	100.00%

Synonyms

Hiddenit
Hiddenita
Lithia Emerald
Lithionsmaragd

Literature, links & citation

Citations

1881Smith, Lawrence (1881) Hiddenite, variété vert-émeraude de triphane. Bulletin de Minéralogie, 4 (6) 184-186 doi:10.3406/bulmi.1881.1657DOI: 10.3406/bulmi.1881.1657
1881Smith, J.L. (1881). Hiddenite, an emerald-green variety of spodumene. American Journal of Science, 3(122), 128-130.
1881(1881) Hiddenite.—A New Mineral. Scientific American, 44 (13) 196 doi:10.1038/scientificamerican03261881-196DOI: 10.1038/scientificamerican03261881-196
1881Smith, J. Lawrence (1881) Hiddenite, an Emerald-Green Variety of Spodumene. Scientific American, 11 (279) 4450 doi:10.1038/scientificamerican05071881-4450bsuppDOI: 10.1038/scientificamerican05071881-4450bsupp
1882Genth, F.A. (1882). Analysis of the emerald-green spodumene, hiddenite. American Journal of Science, series, 3, 23-68.

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Hiddenite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/hiddenite-7740},
  note      = {Accessed 2026-05-11}
}