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Boltwoodite
FAMILY: Uranium Silicate Mineral
COLOR: Lead Gray To Tin White
MOH'S HARDNESS: 3½ - 4
DENSITY: 4.7
TRANSPARENCY: Translucent
OCCURRENCE: Common
ORIGIN: Bulgaria, Burundi,Canada, Chile, China, Hungary, India

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631A A134
1989 01 Jan
South West Africa
685 A141
1991 02 Jan
Namibia
 
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