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Formula: Cu3(Te6+O4)(OH)4
Tellurate
Crystal System: Orthorhombic
Specific gravity: 4.65 measured, 4.42 calculated
Hardness: 4
Streak: Light green to white
Colour: Emerald-green
Luminescence: No fluorescence under UV
Environments
Localities
At the type locality, the Bambollita Mine, Moctezuma, Moctezuma Municipality, Sonora, Mexico, xocomecatlite
occurs as isolated or clustered spherules that seldom exceed 0.15 mm in diameter in cracks in altered
rhyolite. These green spherules are composed of radially disposed
needles that seldom attain 5 microns in width. Associated minerals include
cesbronite and carlfriesite
(Mindat).
Xocomecatlite from the Bambollita Mine -
Image
At the Tintic Mineral District, Utah, USA, xocomecatlite has been found in specimens from the Centennial
Eureka, Trixie and North Star mines; its most common form is as green spheres on
quartz at all three localities
(MinRec 55.2.228-232).
Xocomecatlite from Tintic - Image
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