General Information:
Chemical Formula:
(Ni,Mg,Fe++)2Al(SiAl)O5(OH)4
IMA Status:
Approved IMA 1978
Physical Properties:
Cleavage:
None
Color:
yellow green.
Density:
3.17
Diaphaniety:
Transparent to Translucent
Hardness:
2.5-3 - Finger Nail-Calcite
Luster:
Vitreous - Pearly
Streak:
light green
More details...