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Römerite, Romerite

Year of discovery: 1858 (Rammelsberg mine, Germany), 1958 (Japan)

Locality list: 5 localities of römerite

• Fe₃(SO₄)₄,14H₂O
• [Fe²⁺][Fe³⁺₂][(SO₄)₄]^8-,14H₂O

• Class: Sulfate - Hydrate
• Soluble in: Water
• Taste: Saline
• Formed by alteration of Pyrite or Pyrrhotite.

• Fe²⁺ => Zn: Lishizhenite

• Color: Brown, Yellow, Purplish brown
• Luster: Vitreous
• Diaphaneity: Translucent

• Cleavage: Perfect on {010} (1 plane), Good on {001} (1 plane)
• Hardness: 3-3.5
• Density: 2.2

• System: Triclinic
• Group: (-1), P(-1)
• Lattice: a=6.5, b=15.3, c=6.3, α=90.5, β=101.1, γ=85.7