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Spiroffite
Year of discovery: 1962 (Moctezuma mine (Bambolla mine), Mexico), 1964 (Japan)
Locality list: A locality of spiroffite
- Mn2Te3O8
- (Mn,Zn)2Te3O8
- [Mn2+2][Te3O8]4-
- Mn => Zn: Zincospiroffite
- Color: Purplish red, Pink
- Streak: Pale red
- Luster: Adamantine
- Diaphaneity: Transparent-Translucent
- Cleavage: Distinct (2 planes)
- Hardness: 3.5
- Density: 5.0
- System: Monoclinic
- Group: 2/m, C2/c
- Lattice: a=12.9, b=5.4, c=11.9, β=98.2