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Arsenolite

Year of discovery: 1854 (St Andreasberg, Germany), 1911 (Japan)

Locality list: 13 localities of arsenolite

• As₂O₃
• [As³⁺₂][O₃]^6-

• Class: Oxide
• Soluble in: Water
• Formed by photodissociation of Realgar with Orpiment.

• Polymorph: Claudetite (Monoclinic)

• As => Fe: Hematite (α), Maghemite (γ)
• As => Cr: Eskolaite
• As => V: Karelianite
• As => Ti: Tistarite
• As => Mn: Bixbyite (γ)
• As => Al: Corundum (α)
• As => Bi: Bismite, Sphaerobismoite
• As => Sb: Sénarmontite (Senarmontite), Valentinite

• As₂ => AsSb: Stibioclaudetite

• Color: White, Pale blue, Pale yellow
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Cleavage: Perfect on {111} (4 planes)
• Hardness: 1.5
• Density: 3.9

• System: Cubic
• Group: m3m, Fd3m
• Lattice: a=11.1