General Information:
Chemical Formula:
(Sr,Pb)(Y,U)(Ti,Fe+++)20O38
Environment:
In calcite veins within dolomite. A member of the Crichtonite group.
IMA Status:
Approved IMA (Dana # Added)
Locality:
The Buca della Vena mine, Apuan Alps, near the town of Stazzema, northern Tuscany, Italy.
Name Origin:
For Gabor Dessau (1907-1983), professor of ore mineralogy at the University of Pisa, Italy.
Physical Properties:
Cleavage:
None
Color:
black.
Density:
4.68
Diaphaniety:
Opaque
Habits:
Tabular - Form dimensions are thin in one direction., ,
Hardness:
6.5-7 - Pyrite-Quartz
Luster:
Metallic
Streak:
black
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