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Carbonado

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Colour: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).



Classification of Carbonado

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Physical Properties of Carbonado

Lustre:Resinous
Colour:Black, gray, brown

Other Names for Carbonado

Synonyms:
Black Diamond
Other Languages:

Other Information

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

References for Carbonado

Reference List:

- +
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.

Internet Links for Carbonado

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  • Localities for Carbonado

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Brazil
     
    Derby, O. A. (1907). The geology of the diamond and carbonado washings of Bahia, Brazil. Government Printing Office. Smithsonian Report for 1906 pp215-221
    Indonesia
     
    Venezuela
     
    • 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.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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