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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