General Information:
Chemical Formula:(K,Sr)2-xNb2O6(O,OH)·n(H2O)
IMA Status:Approved IMA 1978
Physical Properties:
Color:green.
Density:3.4 - 3.48, Average = 3.44
Diaphaniety:Translucent to Opaque
Hardness:4-4.5 - Between Fluorite and Apatite
Luster:Vitreous - Resinous
Streak:gray white
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