[ Top ] [ Japanese ]

Laurionite

Year of discovery: 1887 (Lavrion district (Laurion district), Greece), 2015 (Japan)

Locality list: A locality of laurionite

• PbCl(OH)
• [Pb²⁺][OH|Cl]^2-

• Class: Chloride - Hydroxide
• Soluble in: Water (Slightly), HNO₃
• Fluorescence: Short UV excitation (Yellow)
• Physical: Elastic

• Polymorph: Paralaurionite (Monoclinic)

• OH => F: Matlockite
• OH => Cl: Cotunnite

• Color: Colorless, White
• Streak: White
• Luster: Adamandine
• Diaphaneity: Transparent

• Cleavage: Distinct on {101} (2 planes)
• Hardness: 3-3.5
• Density: 6.2

• System: Orthorhombic
• Group: mmm
• Lattice: a=7.1, b=9.7, c=4.0