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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