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Cuprorivaite

Year of discovery: 1938 (Mount Vesuvius, Italy)

Locality list:

• CaCuSi₄O₁₀
• [Ca²⁺₂][Cu²⁺₂][(Si₂O₅)₂]^4-

• Class: Phyllosilicate

• Color: Blue
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Cleavage: Perfect on {001} (1 plane)
• Hardness: 5
• Density: 3.1

• System: Tetragonal
• Group: 4/mmm, P4/ncc
• Lattice: a=7.3, c=15.1