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Schorlomite

Year of discovery: 1846 (Magnet Cove, USA), 1970 (Japan)

Locality list: 8 localities of schorlomite

• Ca₃Ti₂SiFe₂O₁₂
• Ca₃(Ti,Fe,Al)₂(Fe,Si)₃O₁₂
• [Ca²⁺₃][Ti⁴⁺₂][SiO₄|(Fe³⁺O₄)₂]^14-

• Class: Schorlomite group < Garnet supergroup
• Class: Nesosilicate
• Soluble in: HCl (Gel residue)

• Ti => Zr: Kerimasite
• Ti => Sn: Toturite

• Ti⁴⁺Fe³⁺ => Fe³⁺Si⁴⁺: Andradite (Series)
• Ti⁴⁺Fe³⁺ => Zr⁴⁺Al³⁺: Kimzeyite

• Color: Black, Dark brown
• Streak: Dark brown
• Luster: Sub-Metallic
• Diaphaneity: Translucent

• Cleavage: No
• Hardness: 7-7.5
• Density: 3.8

• System: Cubic
• Group: m3m, Ia3d
• Lattice: a=12.2