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Felsőbányaite, Felsobanyaite

Year of discovery: 1853 (Baia Sprie mine (Felsőbánya mine), Romania), 1986 (Japan)

Locality list: 8 localities of felsobanyaite

• Al₄SO₄(OH)₁₀,4H₂O
• [Al³⁺₄][(OH)₁₀|SO₄]^12-,4H₂O

• Class: Sulfate - Hydroxide - Hydrate

• Color: Colorless, Yellow
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Cleavage: Distinct on {100}{010}{001} (3 planes)
• Hardness: 1.5
• Density: 2.3

• System: Monoclinic
• Group: 2, P2₁
• Lattice: a=13.0, b=10.0, c=11.1, β=104.3

Synonym: Basaluminite