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Formula: (Cu1-xAlx)(SO4)x/2(OH)2.nH2O (x < 0.5, n < 3x/2)
Hydrated sulphate containing hydroxyl, woodwardite group
Crystal System: Trigonal
Specific gravity: 2.38 measured
Streak: Light blue
Colour: Greenish blue, turquoise-blue
Environments
Woodwardite is an inadequately characterised mineral. It is a rare
secondary mineral in the oxidised zone of
copper deposits, and a post-mining product
(HOM, Webmin).
Localities
The type locality is Cornwall, England, UK.
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