Carbonado

Where it forms, where it's found

3recorded occurrences

Source · OpenStreetMap

Physical

Colour: Black · gray · brown

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
6CCarbon Carbon 1 12.011 12.011
100.00%
Total 12.011 100.00%
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
6CCarbon	Carbon	1	12.011	12.011	100.00%
	Total	12.011	100.00%

Literature, links & citation

Citations

—Hansen, R., Rennie, L., Burgio, L., Montgomery, W., & Farges, F. (2024). The Sergio: An Exploration of the World’s Largest Carbonado. Part 1. The Australian Gemmologist, 28(5), 268-276.
2006J. Garai, S. E. Haggerty, S. Rekhi & M. Chance (2006): Infrared Absorption Investigations Confirm the Extraterrestrial Origin of Carbonado-Diamonds. The Astrophysical Journal Letters, 653, L153-L156. [http://www.fiu.edu/~jgara002/research%20statement/carbonado/carbonado-2006.pdf]
2011Sautter, Violaine, Lorand, Jean -Pierre, Cordier, Patrick, Rondeau, Benjamin, Leroux, Hugues, Ferraris, Cristiano, Pont, Sylvain (2011) Petrogenesis of mineral micro-inclusions in an uncommon carbonado. European Journal of Mineralogy, 23 (5) 721-729 doi:10.1127/0935-1221/2011/0023-2154DOI: 10.1127/0935-1221/2011/0023-2154
2013Kaminsky, F. V.; Wirth, R.; Morales, L. (2013) Internal texture and syngenetic inclusions in carbonado. The Canadian Mineralogist, 51 (1). 39-55 doi:10.3749/canmin.51.1.39DOI: 10.3749/canmin.51.1.39
2016www.geologypage.com (n.d.) http://www.geologypage.com/2016/04/geologists-discover-origin-of-earths.html

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Carbonado — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/carbonado-27227},
  note      = {Accessed 2026-05-11}
}