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Triplite

Year of discovery: 1813 (Chanteloube, France), 1977 (Japan)

Locality list: 3 localities of triplite

• Mn₂(PO₄)F
• (Mn,Fe²⁺,Mg,Ca)₂(PO₄)(F,OH)
• [Mn²⁺₂][F|PO₄]^4-

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

• Mn => Mg: Wagnerite

• Mn₂ => LiAl: Amblygonite
• Mn₂ => NaAl: Lacroixite
• Mn₂ => MnFe: Zwieselite (Series)
• Mn₂ => CaMg: Isokite

• F => OH: Triploidite
• F => O: Joosteite

• Color: Brown, Reddish brown
• Streak: Pale brown
• Luster: Vitreous
• Diaphaneity: Opaque

• Cleavage: Good on {001} (1 plane), Distinct on {010} (1 plane), Poor on {100} (1 plane)
• Hardness: 5-5.5
• Density: 3.9

• System: Monoclinic
• Group: 2/m, I2/m
• Lattice: a=12.0, b=6.5, c=10.1, β=105.6