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Peretaite

Year of discovery: 1979 (Pereta mine, Italy), 2021 (Japan)

Locality list: A locality of peretaite

• CaSb₄O₄(SO₄)₂(OH)₂,2H₂O
• [Ca²⁺][(SbO)⁺₄][(OH)₂|(SO₄)₂]^6-,2H₂O

• Class: Sulfate - Hydroxide

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

• Cleavage: Perfect on {100} (A plane)
• Hardness: 3.5-4
• Density: 4.1

• System: Monoclinic
• Group: 2/m, B2/b
• Lattice: a=24.7, b=5.6, c=10.2, β=96.0