Krutaite

Octahedral crystals of krutaite

Origin: El Dragón mine, Quijarro province, Potosí, Bolivia

Picture size: 4 mm

Owner: Thomas Witzke

Photo courtesy of:

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

Polished section in epoxy, krutaite associated with clausthalite (confirmed by microprobe analysis) (left and middle), associated with cuprian penroseite and clausthalite (right)

Octahedral crystals of krutaite to about 0.5 mm, very nice and fairly well-defined in a few locations associated with good coverage of kerstenite, olsacherite (sparse coverage and very micro) and minor chalcomenite (photo shows a good crystal).

Specimen with a face covered by good, grey, octahedral crystals to 0.75mm. Occurs with minor, bluish chalcomenite.

Origin: Mina El Dragon, Potosi, Bolivia

Sample size: 1.4 cm square (top left), plate of mineral is 1.5 x 2 cm (top middle), section of mineral is 12 x 6 mm (top right), 4.5 x 2.5 x 2 cm (2nd row), 2.5 x 1 x 1 cm (bottom)

Photo courtesy of:

Tom Loomis

Dakota Matrix Minerals