Fergusonite-(Nd)

General Information:
 Chemical Formula:
(Nd,Ce)(Nb,Ti)O4
 Environment:
Rare-earth deposit.
 IMA Status:
Not Approved
 Locality:
Bayan Obo, Inner Mongolia, China.
 Name Origin:
Named for the composition and a member of the fergusonite group.
Physical Properties:
 Cleavage:
[???] Indistinct
 Color:
dark brown.
 Density:
4.5 - 5.7, Average = 5.09
 Diaphaniety:
Translucent to Opaque
 Hardness:
5.5-6.5
 Luster:
Adamantine
 Streak:
brown
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