Digenite is a copper sulfide mineral with formula: Cu 9 S 5. Digenite is a black to dark blue opaque mineral that crystallizes with a trigonal–hexagonal scalenohedral structure. In habit it …

At temperatures below 81°C, digenite is trigonal R3m; above that temperature, digenite is isometric. Comment: Above 73°C, cubic with space group Fm -3 m , a = 5.57 Å, Z = 4.

In hydrothermal copper deposits of primary and secondary origin. Formed under a wide range of conditions; reported from mafic intrusives, as an exhalation product, and in pegmatites . In the …

2024年10月11日 · Digenite, a fascinating copper sulfide mineral, holds a unique place in geology. Its striking blue-black color and metallic luster make it a standout in any mineral collection. …

Digenite is a black metallic mineral often found with and mistaken for chalcocite. Both minerals occur in moderate to low temperatures hydrothermal deposits and in supergene enrichment …

Digenite Cu9S5 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Hexagonal, pseudocubic. Point Group: 32/m most likely. Rarely in pseudocubic crystals, to 3 cm; more …

Digenite is a mineral that is primarily found in mafic intrusives, pegmatites, and hydrothermal copper deposits. It is a bluish-grey mineral that can be identified by its distinctive blue …