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Koninckite

Year of discovery: 1883 (Richelle, Belgium), 1982 (Japan)

Locality list: 2 localities of koninckite

• FePO₄,3H₂O
• [Fe³⁺][PO₄]^3-,3H₂O

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

• Color: Yellow, White
• Streak: Yellow
• Luster: Vitreous
• Diaphaneity: Transparent

• Aggregate: Spherical

• Cleavage: Good
• Hardness: 3.5-4
• Density: 2.3

• System: Tetragonal
• Lattice: a=12.0, c=14.5