About Chalcocite
A copper sulfide, an important copper ore, typically dark grey to black with a metallic luster. It's associated with transformation, intuition, and stimulating energy flow.
Primary Hues
Dark Lead-Grey, Blackish-Grey, often with a bluish or greenish tarnish
Geological & Scientific Details
Chalcocite is classified as a sulfide minerals mineral which typically crystallizes in the monoclinic system. Its chemical formula is copper(I) sulfide: Cu2S. Common crystal habits include tabular to prismatic crystals also massive to granular, (pseudo-orthorhombic).
Key Geological Properties:
- Mineral Category: Sulfide minerals
- Chemical Formula: copper(I) sulfide: Cu2S
- IMA Symbol: Cc[1]
- Crystal System: Monoclinic
- Predominant Geological Color: Dark gray to black
- Crystal Habit: Tabular to prismatic crystals also massive to granular, (pseudo-orthorhombic)
- Twinning: Common on {110} yielding pseudohexagonal stellate forms
- Cleavage: Indistinct on {110}
- Luster: Metallic
- Streak: Shiny black to lead gray
- Diaphaneity: Opaque
Associated Minerals
- Covellite
- Bornite
- Djurleite
- Digenite
- Chalcopyrite
- Pyrite
- Copper