Boulangerite
Pb₅Sb₄S₁₁
Sulfides
Hardness 2,75
· Monoclinic
Photo: Robert M. Lavinsky · CC BY-SA 3.0
Chalcocite
Cu₂S
Sulfide mineral
Properties
- Chemical formula
- Cu₂S
- Group
- Sulfides
- Crystal system
- Monoclinic
- Hardness (Mohs)
- 2,75
- Color
- Gray
- Luster
- —
- Streak
- —
- Density
- 5,65 g/cm³
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- —
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 2.BA.05a
- Dana classification
- 2.4.7.1
- IMA status
- Grandfathered mineral (G)
- IMA symbol
- Cc
- Locality
- —
- Type locality
- —
- Discovery year
- —
Etymology
Named after copper
Source: Wikidata
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