Formula: Na(H3O)(UO2)3(SeO3)2O2·4H2O
Origin of name: for Larisa Nikolaevna Belova (1923-1998), Russian mineralogist and crystallographer
Crystal system: Monoclinic
Crystal class: 2
Twinning:
Unit cell: a = 6.9806, b = 17.249, c = 7.646, β = 90.039°
Colour: Yellow, greenish yellow
Diaphaneity: Transparent
Luster: Vitreous
Habit: Acicular, radial sprays, lamellar
Hardness: 1
Specific gravity: 4.46 (calculated)
Cleavage: 1; {010} perfect
Tenacity: Sectile fracture
Streak: Yellow
Synonyms/varieties:
Comments:
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