[ Top ] [ Japanese ]

Guérinite, Guerinite

Year of discovery: 1961 (St Daniel mine, Germany), 2010 (Japan)

Locality list: A locality of guérinite

• Ca₅(AsO₄)₂(HAsO₄)₂,9H₂O
• [Ca²⁺₅][(HAsO₄)₂|(AsO₄)₂]^10-,9H₂O

• Class: Arsenate - Hydrate

• Polymorph: Ferrarisite (Triclinic)

• Color: Colorless
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Cleavage: Perfect
• Hardness: 1.5
• Density: 2.7

• System: Monoclinic
• Group: 2/m, P2₂/b
• Lattice: a=17.6, b=6.7, c=23.5, β=90.6