Xocomecatlite

xocomecatlite

cesbronite

carlfriesite

Images

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

Volcanic igneous 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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