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Pharmacolite

Year of discovery: 1800 (Sophia mine, Germany), 2010 (Japan)

Locality list: A locality of pharmacolite

• CaHAsO₄,2H₂O
• [Ca2+][HAsO₄]^2-,2H₂O

• Class: Arsenate - Hydrate
• Soluble in: HCl, HNO₃, H₂SO₄
• Insoluble in: Water
• Dehydrate to Haidingerite at 60 degree.

• HAsO₄ => HPO₄: Brushite
• HAsO₄ => SO₄: Gypsum

• 2H₂O => []: Weilite
• 2H₂O => H₂O: Haidingerite

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

• Cleavage: Perfect on {010} (1 plane)
• Hardness: 2-2.5
• Density: 2.7

• System: Monoclinic
• Group: m, Ia
• Lattice: a=6.0, b=15.4, c=6.3, β=114.8