Formula: UH6(UO2)6(SiO4)6.30H2O
Origin of name: after locality Swambo, Zaire
Crystal system: monoclinic
Crystal class: 2/m
Twinning:
Unit cell: a = 17.64 Å, b= 21.00 Å, c = 21.12 Å, b= 103.4°
Colour: pale yellow
Diaphaneity:
Luster:
Habit: crystals acicular prisms, to 0.8 mm
Hardness:
Specific gravity: 4.0
Cleavage: 1; {-201} good
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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