Formula: Cu4(UO2)(MoO4)2(OH)6
Origin of name: For Jean-Claude Delory, French mineral collector
Crystal system: Monoclinic
Crystal class: 2 or m or 2.m
Twinning:
Unit cell:
Colour: Dark green to black
Diaphaneity: Transparent to nearly opaque
Luster: Vitreous to greasy
Habit: Tabular crystals to 3 mm in rosettes to 6 mm
Hardness: 4
Specific gravity: 4.9
Cleavage: 3; Perfect {010}, {100}; {001} good
Tenacity:
Streak: Green
Synonyms/varieties:
Comments:
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