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About CarbonadoHide

Black, gray, brown
A variety of Diamond

A massive, opaque, gray, brown, or black variety of diamond used as an abrasive and in rock drills.

Five different theories for the formation of carbonado have been discussed (cf. Sautter et al. 2011).

Physical Properties of CarbonadoHide

Black, gray, brown

Chemical Properties of CarbonadoHide

Synonyms of CarbonadoHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for CarbonadoHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
J. 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]
Sautter, 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, 721-729.
Kaminsky, F.V., Wirth, R., Morales, L. (2013): Internal texture and syngenetic inclusions in carbonado. Canadian Mineralogist 51, 39-55.

Internet Links for CarbonadoHide

Localities for CarbonadoHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Derby, O. A. (1907). The geology of the diamond and carbonado washings of Bahia, Brazil. Government Printing Office. Smithsonian Report for 1906 pp215-221
    • Chapada Diamantina
Herold, M. W., & Rines, S. (2014). A Half-century monopoly (1880-1930s): the black diamonds (carbonados) of Bahia and Jewish Merchants. Revista Ciências Administrativas, 17(1)
Herold, M. W., & Rines, S. (2014). A Half-century monopoly (1880-1930s): the black diamonds (carbonados) of Bahia and Jewish Merchants. Revista Ciências Administrativas, 17(1)
  • Primorsky Krai
    • Roshchino
Seliverstov V.A., Gorshkov A.I., Shcheka S.A., Sivtsov A.V. (1996) Diamonds and carbonadoof Primorskii Krai: mineralogy, crystal; chemistry and genesis, - Geologiya Rudnyh Mestorozhdenii, v.38, №6, p.485-499 (in Russian).
  • Sakha Republic (Yakutia)
    • Aldan Shield
      • Aldan
Shcheka, S. A., Ignat’ev, A. V., Nechaev, V. P., & Zvereva, V. P. (2006). First diamonds from placers in Primorie. Petrology, 14(3), 299-317.
  • Bolívar
    • Santa Elena de Uairen
NEWMAN, José Albino et al. Mineralogical characterization of the diamond of the alluvial placer from Icabaru River, Santa Elena de Uairén, Bolivar State, Venezuela. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 472-480.
Mineral and/or Locality  
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