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Schulenbergite

Year of discovery: 1984 (Glücksrad mine, Germany), 1999 (Japan)

Locality list: 5 localities of schulenbergite

• Cu₇(SO₄)₂(OH)₁₀,3H₂O
• (Cu,Zn)₇(SO₄,CO₃)₂(OH)₁₀,3H₂O
• [Cu²⁺₇][(OH)₁₀|(SO₄)₂]^14-,3H₂O

• Class: Schulenbergite group
• Class: Sulfate - Hydroxide - Hydrate
• Soluble in: HCl
• Formed on dehydration of Minohlite above 50 degree.

• 3H₂O => 8H₂O: Minohlite

• Color: Pale blue, Bluish green
• Streak: Pale bluish green
• Luster: Pearly
• Diaphaneity: Transparent

• Cleavage: Perfect
• Hardness: 2
• Density: 3.3

• System: Trigonal
• Group: (-3), P(-3)
• Lattice: a=8.2, c=7.2