General Information:
Chemical Formula:
NbNa3Ca3(Ce,La,Pr,Nd)(Si2O7)2OF3
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[???] Good
Color:
colorless.
Density:
3.45
Diaphaniety:
Transparent
Hardness:
5 - Apatite
Luster:
Vitreous (Glassy)
Streak:
white
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