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Baghdadite

Year of discovery: 1982 (Mount Dupezeh, Iraq), 1999 (Japan)

Locality list: 2 localities of baghdadite

• Ca₃ZrSi₂O₉
• Ca₃(Zr,Ti)Si₂O₉
• [Ca²⁺₃][Zr⁴⁺][O₂|Si₂O₇]^10-

• Class: Sorosilicate - Oxide
• Fluorescence: Short UV excitation (Yellowish orange)

• Color: Colorless
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent

• Cleavage: No
• Hardness: 6
• Density: 3.5

• System: Monoclinic
• Group: 2/m, P2₁/a
• Lattice: a=10.4, b=10.2, c=7.4, β=91.1