Antimonselite
A variety of Minerals
What is Antimonselite?
Antimony triselenide is the chemical compound with the formula Sb2Se3. The material exists as the sulfosalt mineral antimonselite, which crystallizes in an orthorhombic space group. In this compound, antimony has a formal oxidation state +3 and selenium −2. The bonding in this compound has covalent character as evidenced by the black color and semiconducting properties of this and related materials. The low-frequency dielectric constant (ε0) has been measured to be 133 along the c axis of the crystal at room temperature, which is unusually large. Its band gap is 1.18 eV at room temperature. The compound may be formed by the reaction of antimony with selenium and has a melting point of 885 K.
Uses & Applications
Sb2Se3 is now being actively explored for application thin-film solar cells. A record light-to-electricity conversion efficiency of 9.2% has been reported.
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Antimonselite before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
Antimonselite Localities Map
See where Antimonselite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Quick Facts
Physical Properties
- Color
- Black
- Hardness (Mohs)
- 3.5
- Streak
- Black
Chemical Properties
- Chemical Formula
- Sb2Se3
- Elements
- Sb, Se
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Antimonselite FAQs
How do I identify Antimonselite?
Antimonselite can be identified by its hardness of 3.5 on the Mohs scale, Black color. Look for these key characteristics when examining specimens.
What color is Antimonselite?
Antimonselite typically appears in Black. Color can vary depending on impurities and formation conditions.
How hard is Antimonselite?
Antimonselite has a hardness of 3.5 on the Mohs scale. This gives it moderate hardness.
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