Alabaster

Where it forms, where it's found

57recorded occurrences

Source · OpenStreetMap

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
55.76%
20CaCalcium Calcium 1 40.078 40.078
23.28%
16SSulfur Sulfur 1 32.060 32.060
18.62%
1HHydrogen Hydrogen 4 1.008 4.032
2.34%
Total 172.164 100.00%
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	55.76%
20CaCalcium	Calcium	1	40.078	40.078	23.28%
16SSulfur	Sulfur	1	32.060	32.060	18.62%
1HHydrogen	Hydrogen	4	1.008	4.032	2.34%
	Total	172.164	100.00%

Synonyms

Alabast
Alabastrit
Alabastrita
Alabastrite
Alabastrum
Albâtre

Literature, links & citation

Citations

1951Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
2004en.wikipedia.org (2004) https://en.wikipedia.org/wiki/Alabaster

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Alabaster — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/alabaster-90},
  note      = {Accessed 2026-05-11}
}