Cave Onyx

Where it forms, where it's found

30recorded occurrences

Source · OpenStreetMap

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
8OOxygen Oxygen 3 15.999 47.997
47.96%
20CaCalcium Calcium 1 40.078 40.078
40.04%
6CCarbon Carbon 1 12.011 12.011
12.00%
Total 100.086 100.00%
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	3	15.999	47.997	47.96%
20CaCalcium	Calcium	1	40.078	40.078	40.04%
6CCarbon	Carbon	1	12.011	12.011	12.00%
	Total	100.086	100.00%

Synonyms

Alabaster Onyx
Algerian Onyx
Banded Travertine
Calcite Onyx
Gibraltar Stone
Limestone Onyx
Mexican Agate
Mexican Onyx
Mexikanischer Achat
Mexikanischer Onyx
Onyx Marble
Onyxmarmor
Oriental Alabaster
Yaqui Onyx
Yava Onyx

Literature, links & citation

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Cave Onyx — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/cave-onyx-3000},
  note      = {Accessed 2026-05-11}
}