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Kolbeckite

Year of discovery: 1926 (Sadisdorf, Germany), 2016 (Japan)

Locality list: A locality of kolbeckite

• ScPO₄,2H₂O
• (Sc,V,Fe,Al)PO₄,2H₂O
• [Sc³⁺][PO₄]^3-,2H₂O

• Class: Phosphate - Hydrate
• Soluble in: HCl, HNO₃, H₂SO₄

• Sc => Fe: Strengite, Phosphosiderite
• Sc => Al: Variscite, Metavariscite

• 2H₂O => []: Pretulite

• Color: Bluish gray, Colorless, Pale green, Pale yellow
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent

• Cleavage: Distinct on {010} (1 plane), Indistinct on {100} and {001} (2 planes)
• Hardness: 3-5
• Density: 2.4

• System: Monoclinic
• Group: 2/m, P2₁/n
• Lattice: a=5.4, b=10.3, c=8.9, β=90.3