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Formula: H3Fe3+2(Te4+O3)4C
Tellurite
Crystal System: Triclinic
Specific gravity: 4.97 to 5.15 measured, 5.11 calculated
Hardness: 2 to 3
Streak: Greenish yellow
Colour: Emerald- to grass-green
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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