General Information:
Chemical Formula:
Fe+++2-x(V+++++,V++++)2O4(OH)4
IMA Status:
Approved IMA 1970
Physical Properties:
Color:
black, yellowish, or greenish brown.
Density:
3.28
Diaphaniety:
Transparent to Subopaque
Streak:
brown
More details...
General Information:
Chemical Formula:
Fe+++2-x(V+++++,V++++)2O4(OH)4
IMA Status:
Approved IMA 1970
Physical Properties:
Color:
black, yellowish, or greenish brown.
Density:
3.28
Diaphaniety:
Transparent to Subopaque
Streak:
brown
More details...
Mineralogy database English vocab. Английский словарь базы данных минералогии . 2012