Boulangerite
Pb₅Sb₄S₁₁
Sulfides
Hardness 2,75
· Monoclinic
Photo: Wikimedia Commons
Alacránite
As₈S₉
Mineral, arsenic sulfide
Properties
- Chemical formula
- As₈S₉
- Group
- Sulfides
- Crystal system
- Monoclinic
- Hardness (Mohs)
- —
- Color
- Orange
- Luster
- —
- Streak
- Amber
- Density
- —
- Cleavage
- —
- Fracture
- —
- Tenacity
- —
- Crystal habit
- —
- Transparency
- —
- Space group
- —
- Fluorescence
- —
- Magnetism
- —
- Radioactivity
- —
- Refractive index
- —
- Optical character
- —
- Birefringence
- —
- Pleochroism
- —
- Strunz classification
- 2.FA.20
- Dana classification
- 2.8.22.
- IMA status
- Renamed mineral (Rn)
- IMA symbol
- Acr
- Locality
- 🇨🇱 Alacrán mine, Alacrán
- Type locality
- —
- Discovery year
- —
Etymology
Named after Alacrán mine, Alacrán
Source: Wikidata
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