Formula : (H3O)K[UO2/SiO4] * H2O
System: monoclinic Hardness:3˝-4 Rarity:not common
Strunz id:VIII/B.34-60 -
SILICATES
Name origin: For Bertram Borden Boltwood (1870-1927), radiochemist at Yale University, New Haven, Connecticut, USA. Named by Clifford Frondel and Jun Ito.
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