Mineralpedia Details for Cubanite
Named for the type locality of the mineral in the country Cuba at Barracanao in the Moa-Baracoa district and Mayari-Baracoa belt of the Oriente Province. Cubanite is somewhat common and is widespread, occurring in high temperature hydrothermal deposits in pyrrhotite-pentlandite ore where it occurs in close association with chalcopyrite Rarely, Cubanite can be found in carbonaceous chondrite meteorites. Additionaly localities for Cubanite occur in the United States, Canada, Sweden, Finland, Italy, Brazil, Australia, Russia, and in the Orgueil and Alais meteorites. Brass-yellow to golden-yellow massive but often as sharp, lustrous, elongated crystals. Slightly magnetic. In hydrothermal deposits formed at relatively high temperature, in pyrrhotite–pentlandite ores. Below 200-210 degrees Celsius, Cubanite may exsolve from chalcopyrite. Twinning common as fourlings and pseudohexagonal sixlings.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/cubanite.pdf
Cubanite from Tumut district, New South Wales, Australia
- Special Info
- Phillips Collection
Golden brassy crystalline, slightly magnetic in metamorphosed chloritic(?) schist.
Cubanite from Henderson No. 2 mine, Chibougamau, Nord-du-Quebec, Quebec, Canada
Brassy colored twinned single crystal.