Cubanite

cubanite

[′kyü·bə‚nīt]
(mineralogy)
CuFe2S3 Bronze-yellow mineral that crystallizes in the orthorhombic system. Also known as chalmersite.

Cubanite

 

a mineral, a sulfide of iron and copper, Cul’e2S3 (theoretical content: 23.4 percent Cu, 41.2 percent Fe, 35.4 percent S). Cubanite crystallizes in the orthorhombic system. It generally forms thin tabular microscopic intergrowths in chalcopyrite—products of decomposition at a temperature of about 300°C. Cubanite is bronze-yellow in color and exhibits a metallic luster. It has a hardness of 3.5 on the mineralogical scale and a density of 4,030–4,169 kg/m3. It is magnetic. Cubanite occurs in copper-nickel sulfide ore deposits (for example, in Sudbury, Canada). It is a rare mineral and does not form large aggregates.

References in periodicals archive ?
Dangers are numerous and include the two British raiders, Ed Dunlop's TESTOSTERONE, a Group 2 winner in France as a three-year-old, and the Ralph Beckett-trained CUBANITE.
Et d'ajou ter en conclusion : << La cubanite, qui est conscience, volonte .
These include acicular cubanite crystals a few millimeters long, similar in appearance to millerite, and crude, embedded crystals of native platinum to 8 mm.
The vehicle is available in Carneol Red, Obsidian Black, Calcite White, Tenorite Grey, Iridium Silver and Cubanite Silver colours.
Cubanite Silver paint is available as an exclusive finish, although any of the M-Class metallic paints can be chosen at no extra cost.
The geologic history of this deposit[4] begins with the intrusion of stocks of tonalitic composition (the Andacollo porphyry, Upper Cretacous) within a layered sequence of andesite and dacites, which induced pervasive hydrothermal alteration (K silicate, quartz sericite) and mineralization (mainly pyrite-chalcopyrite plus some minor quantities of molybdenite, bornite, cubanite and pyrrhotite).
Chalcopyrite and cubanite occurs as disseminations, stringers, and veins, mainly in banded amphibolites.
2]O Coloradoite HgTe Copper*+ Cu Covellite CuS Cubanite [Cu.