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Jurbanite

Year of discovery: 1976 (San Manuel mine, USA), 1987 (Japan)

Locality list: A locality of jurbanite

• AlSO₄(OH),5H₂O
• [Al³⁺][OH|SO₄]^3-,5H₂O

• Class: Sulfate - Hydroxide - Hydrate

• Polymorph: Rostite (Orthorhombic)

• OH => F: Khademite

• Al => Fe: Fibroferrite

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

• Cleavage: No
• Hardness: 2.5
• Density: 1.8

• System: Monoclinic
• Group: 2/m, P2₁/n
• Lattice: a=8.5, b=12.5, c=8.2, β=101.9