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Formula: Cu2Al2(AsO4)2(OH)4.H2O
Hydrated arsenate containing hydroxyl, forms a series with
chenevixite
Crystal System: Monoclinic
Specific gravity: 4.28 measured, 4.40 calculated
Hardness: 3
Streak: White
Colour: Blue, pale green upon alteration
Environments:
Luetheite is a rare mineral filling cavities in intensely altered volcanic rock
(Webmin).
Localities
At the type locality, the Humboldt Mine area, Harshaw Mining District, Patagonia Mountains, Santa Cruz county, Arizona, USA,
luetheite occurs as as minute crystals in silicified rhyolite
porphyry with chenevixite,
cornubite and hematite
(AM 62.1058, HOM).
At the Majuba Hill Mine, Antelope Mining District, Pershing county, Nevada, USA, luetheite occurs in the oxidised
zone of a copper deposit, associated with pharmacosiderite,
arthurite, scorodite,
chenevixite and zeunerite
(HOM).
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