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Chrysocolla (Photo) [abbr. Ccl ]

Year of discovery: 315 B.C. (World), 1885 (Japan)

Locality list: 173 localities of chrysocolla

• (Cu,Al)₂H₂Si₂O₅(OH)₄,nH₂O
• [Cu²⁺₂][(OH)₄|H₂Si₂O₅],nH₂O

• Class: Phyllosilicate - Hydroxide - Hydrate
• Soluble in: HCl (Decompose)
• Formed by alteration of Brochantite.
• Formed by alteration of Chalcophyllite.
• Substitution pseudomorph: Replace Atacamite.
• Incrustation pseudomorph: Replace Cerussite.

• Color: Bluish green, Green
• Streak: White
• Luster: Vitreous
• Diaphaneity: Translucent, Opaque

• Habit: Amorphous
• Aggregate: Massive

• Cleavage: No
• Hardness: 2.5-3.5
• Density: 2.2

• System: Orthorhombic
• Lattice: a=5.7, b=8.9, c=6.7

Etymology: Chryso (gold) - kolla (glia) in Greek