Yuanfuliite

General Information:
 Chemical Formula:
(Mg,Fe++)(Fe+++,Al,Mg,Ti,Fe++)(BO3)O
 Environment:
Disseminated in and between suanite crystal grains in crystalline magnesian marble.
 IMA Status:
Approved IMA
 Locality:
Zhuanmiao boron deposit, Kuandian bounty, Liaoning Province, People's Republic of China.
 Name Origin:
Named after Prof. Yuan Fuli (1893-1987).
Physical Properties:
 Cleavage:
[100] Perfect
 Color:
black.
 Density:
4.02
 Diaphaniety:
Nearly opaque
 Habits:
Disseminated - Occurs in small, distinct particles dispersed in matrix., ,
 Hardness:
6-6.5 - Orthoclase-Pyrite
 Luster:
Adamantine
 Streak:
brownish black
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