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Metastibnite (Photo)

Year of discovery: 1888 (Steamboat Hot Springs, USA), 1937 (Japan)

Locality list: 2 localities of metastibnite

• Sb₂S₃
• [Sb³⁺₂][S₃]^6-

• Class: Sulfide

• Polymorph: Stibnite (Orthorhombic)

• Sb => As: Getchellite

• Sb₂ => Bi₂: Bismuthinite
• Sb₂ => As₂: Orpiment
• Sb₂ => Rh₂: Bowieite
• Sb₂ => Ir: Kashinite

• S => As: Pääkkönenite

• S₃ => Se₃: Antimonselite
• S₃ => Te₃: Tellurantimony

• Color: Red, Purple
• Streak: Red
• Luster: Sub-Metallic
• Diaphaneity: Translucent

• Habit: Coating

• Cleavage: No
• Hardness: 2-3

• System: Amorphous?

Etymology: Meta (with) in Greek together with stibnite from chemical composition.