Prasiolite

Where it forms, where it's found

8recorded occurrences

Source · OpenStreetMap

Physical

Transparency: Transparent · Translucent
Colour: green
At least some prasiolite is dichroic (blue-green / olive-green)

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 2 15.999 31.998
53.26%
14SiSilicon Silicon 1 28.085 28.085
46.74%
Total 60.083 100.00%
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	2	15.999	31.998	53.26%
14SiSilicon	Silicon	1	28.085	28.085	46.74%
	Total	60.083	100.00%

Synonyms

Prasiolith

Literature, links & citation

Citations

1977Nassau, Kurt, Prescott, Betty E. (1977) A unique green quartz. American Mineralogist, 62 (5-6) 589-590
1982Paradise, Thomas R. (1982) The Natural Formation and Occurrence of Green Quartz. Gems & Gemology, 18 (1) 39-42 doi:10.5741/gems.18.1.39DOI: 10.5741/gems.18.1.39
2007www.quartzpage.de (n.d.) http://www.quartzpage.de/prasiolite.html
2008Hebert, L.B. (2008) Development of color in greenish quartz. Dissertation, California Institute of Technology. 2nd part of a Thesis (Dissertation), California Institute of Technology.
2008Hebert, L. B., Rossman, G. R. (2008) Greenish quartz found at the Thunder Bay Amethyst Mine Panorama, Thunder Bay, Ontario, Canada. The Canadian Mineralogist, 46 (1) 111-124 doi:10.3749/canmin.46.1.111DOI: 10.3749/canmin.46.1.111

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Prasiolite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/prasiolite-40112},
  note      = {Accessed 2026-05-11}
}