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Inyoite

Year of discovery: 1916 (Monte Blanco mine, USA), 2003 (Japan)

Locality list: A locality of inyoite

• CaB₃O₃(OH)₅,4H₂O
• [Ca²⁺][OH|H₄B₃O₇]^2-,4H₂O

• Class: Soro-Borate - Hydroxide - Hydrate
• Soluble in: hot Water, HCl, HNO₃, H₂SO₄
• Turn white by dehydration of the surface.

• Ca => Mg: Inderite, Kurnakovite

• Color: Colorless
• Tarnish: White (by dehydration)
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent

• Cleavage: Good on {001} (1 plane), {010} (1 plane)
• Hardness: 2
• Density: 1.9

• System: Monoclinic
• Group: 2/m, P2₁/a
• Lattice: a=10.6, b=12.1, c=8.4, β=114.0