Bright yellow kasolite crystal "flowers" on matrix. Musonoi Mine, Kolwezi, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
Photo: © Stephan Wolfsried
 

Kasolite is an uncommon mineral that is found as an oxidation product of uraninite and can be found in localities in, additionally, Gabon, Germany, England, France, Australia, the United States, Canada, Mexico, and other minor localities. Kasolite is strongly radioactive.
 

Formula: Pb(UO2)SiO4·H2O
Crystal System:
Monoclinic
Crystal Habit: Radial, Prismatic, Fibrous
Color: green, gray green, yellow, yellow brown, reddish orange
Streak: light brownish yellow
Hardness: 4


 

 
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