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Linarite (Photo)

Year of discovery: 1839 (Linares, Spain), 1895 (Japan)

Locality list: 66 localities of linarite

• PbCuSO₄(OH)₂
• [Pb²⁺][Cu²⁺][(OH)₂|SO₄]^4-

• Class: Sulfate - Hydroxide
• Soluble in: HCl (Decompose), HNO₃ (Decompose)
• Alter to Antlerite.
• Alter to Cerussite with Malachite.
• Substitution pseudomorph: Replaced by Cerussite.

• (SO₄)₂ => (SeO₃)(SO₄): Munakataite
• (SO₄)₂ => (Se⁴⁺O₃)(Se⁶⁺O₄): Schmiederite

• Color: Dark blue
• Streak: Pale blue
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Habit: Long tabular

• Cleavage: Perfect on {100} and {001} (1 plane)
• Hardness: 2.5
• Density: 5.4

• System: Monoclinic
• Group: 2/m, P2₁/m
• Lattice: a=9.7, b=5.7, c=4.7, β=102.7

Etymology: Linares district, Spain