Uhligite

General Information:
 Chemical Formula:
Ca3(Ti,Al,Zr)9O20
 Environment:
Nepheline-syenite rocks.
 Locality:
Lake Magad, Rift Valley, Tanganyika Territory, Kenya, East Africa.
 Name Origin:
Named for Alfred Louis Johannes Uhlig (1883-1919), German geologist, leader of the African expedition in which the material was first collected.
Physical Properties:
 Cleavage:
[001] Imperfect
 Color:
black.
 Density:
4.15
 Diaphaniety:
Subtranslucent to opaque
 Hardness:
5.5 - Knife Blade
 Luster:
Metallic
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