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Ktenasite

Year of discovery: 1950 (Jean Baptiste mine, Greece), 2001 (Japan)

Locality list: 2 localities of ktenasite

• ZnCu₄(SO₄)₂(OH)₆,6H₂O
• Zn(Cu,Zn)₄(SO₄)₂(OH)₆,6H₂O
• [Zn²⁺][Cu²⁺₄][(OH)₆|(SO₄)₂]^10-,6H₂O

• Class: Sulfate - Hydroxide - Hydrate

• Zn => Co: Gobelinite
• Zn => Mg: Fehrite
• Zn => Ni: Asagiite

• Color: Bluish green
• Streak: Pale green
• Luster: Vitreous
• Diaphaneity: Transparent

• Cleavage: No
• Hardness: 2-2.5
• Density: 3.0

• System: Monoclinic, Pseudo-orthorhombic
• Group: 2/m, P2₁/c
• Lattice: a=5.6, b=6.1, c=23.8, β=95.6