Formula: Mg(UO2)2(SiO3OH)2.2H2O
Origin of name: for M. Sklodowska Curie, Polish-French physicist
Crystal system: monoclinic
Crystal class: 2/m
Twinning: on {001} or {100}
Unit cell: a = 17.28 Å, b = 7.03 Å, c = 6.56 Å, b = 105.9°
Colour: pale yellow to greenish yellow
Diaphaneity:
Luster: subvitreous
Habit: crystals prismatic acicular, as rosettes, mammillary crusts, radial fibrous aggregates, massive, granular or earthy
Hardness: 2 to 3
Specific gravity: 3.64
Cleavage: 1; {100} perfect
Tenacity: brittle
Streak: yellow
Synonyms/varieties:
Comments:
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