General Information:
Chemical Formula:
Ca2(Mg,Fe++,Fe+++,Ti)6(Si,Al)6O20
Physical Properties:
Color:
brown.
Density:
3.64
Diaphaniety:
Subtranslucent to Opaque
Hardness:
6-7 - Orthoclase-Quartz
Luster:
Subadamantine
More details...
General Information:
Chemical Formula:
Ca2(Mg,Fe++,Fe+++,Ti)6(Si,Al)6O20
Physical Properties:
Color:
brown.
Density:
3.64
Diaphaniety:
Subtranslucent to Opaque
Hardness:
6-7 - Orthoclase-Quartz
Luster:
Subadamantine
More details...
Mineralogy database English vocab. Английский словарь базы данных минералогии . 2012