Formula: Cu4Al2(SO4)(OH)12.2-4H2O
Origin of name: for Samuel Pickworth Woodward (1821-1865), English naturalist and geologist.
Crystal system: Hexagonal
Crystal class: 3 2/m (probable)
Twinning:
Unit cell: a = 6, c = 27.3
Colour: Greenish blue to turquoise-blue
Diaphaneity: Translucent
Luster: Translucent to transparent
Habit: Concretions with fine-fibrous structure, tiny, spherulitic, botryoidal
Hardness:
Specific gravity: 2.38
Cleavage: None
Tenacity:
Streak: Light blue
Synonyms/varieties:
Comments:
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