Rodalquilarite

minerals

tellurium

sonoraite

emmonsite

Formula: H3Fe3+2(Te4+O3)4C
Tellurite
Specific gravity: 4.97 to 5.15
Hardness: 2 to 3
Streak: Greenish yellow
Colour: Emerald- to grass-green
Environments

Hydrothermal environments

Rodalquilarite is a rare secondary tellurium mineral formed in the zone of oxidation of tellurium-bearing precious metal deposits (HOM).

Localities

At the El Indio deposit, Elqui Province, Coquimbo, Chile, rodalquilarite is associated with tellurium, mackayite and emmonsite (HOM).

At the type locality, Filon 340, Rodalquilar, Níjar, Almería, Andalusia, Spain, rodalquilarite occurs in tiny stout crystals, mostly less than 0.1 mm, and in crusts in quartz geodes in the zone of oxidation of the gold deposit, associated with native gold, jarosite and emmonsite. It is probably an alteration product of gold tellurides. (AM 53.2104-2105). Other associated minerals include alunite and quartz (HOM).

At the Joe Mine, Cochise County, Arizona, USA, rodalquilarite is associated with emmonsite and sonoraite (HOM).

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