General Information:
Chemical Formula:(U++++++O2)Si7O15
Composition:(Molecular Weight = 706.62 gm)Uranium 33.69 %
U Silicon 27.82 %
SiOxygen 38.49 %
O Empirical Formula: UO2Si7O15
IMA Status:Approved IMA 1983
Locality:Menzeschwand, Schwarzwald, Germany.
Name Origin:Named in allusion to the composition.
Physical Properties: Cleavage:None
Color:yellowish white.
Density:3.25
Habits:Acicular - Occurs as needle-like crystals., ,
Luster:Vitreous (Glassy)
Streak:white
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