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Almandine
Chemical formula: 3FeO x Al2O3 x 3SiO2
Melting point: No data
Density: 4.313 g/cm3
Hardness (Moh's): 7-8
Luminescence: Non-fluorescent
Crystal system: Cubic
Cell dimensions: a=11.54 A, b=11.54 A, c=11.54 A
PDF number: 00-002-1007
ICSD number: 028030
Note: This phase has not been observed in steel inclusions, and it is reported (Kiessling and Lange, 1964), that cannot be precipitated from the liquid phase in the FeO-SiO2-Al2O3 system.