Iris Quartz

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

Anandalite
Aurora Quartz
Cuarzo opalescente
Iridescent Quartz
Rainbow Quartz
Regenbogenquarz
Schillerquarz

Literature, links & citation

Citations

1950C.V. Raman (1950)  Crystals of quartz with iridescent faces . Proceedings of the Indian Academy of Sciences, Section A, 31, 275-279
2011www.mindat.org (2011) http://www.mindat.org/article.php/1335/Iris+Quartz
2017Xiayang Lin and Peter J. Heaney (2017): Causes of iridescence in natural quartz. Gems & Gemology, 53, 68-81.

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Iris Quartz — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/iris-quartz-42133},
  note      = {Accessed 2026-05-11}
}