carbonadoes

1 definition found

carbonadoes - Collaborative International Dictionary of English v.0.48 :

  Carbonado \Car`bo*na"do\, n.; pl. Carbonadoes. [Pg.,
     carbonated.] (Min.)
     A black variety of diamond, found in Brazil, and used for
     diamond drills. It occurs in irregular or rounded fragments,
     rarely distinctly crystallized, with a texture varying from
     compact to porous.
     [1913 Webster]