jarosite


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jarosite

(ˈdʒærəˌsaɪt)
n
(Minerals) a yellow to brown secondary mineral consisting of basic hydrated sulphate of iron and potassium in masses or hexagonal crystals. Formula: KFe3(SO4)2(OH)6
[C19: from Barranco Jaroso, in Almeria, Spain + -ite1]
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Two of the most abundant primary ores in the mine, chalcopyrite, and sphalerite will be the minerals of focus, with additional analyses of pyrite and galena, and the secondary minerals jarosite and pisanite.
If not fully removed, elements can precipitate as or become incorporated in authigenic minerals such as jarosite (K[Fe.
It is lithologically represented by brownish-gray clays with jarosite tarnish and inter-layers of gray, fine-grained sandstones, and by marlaceous and sideritic concretions.
Under atmospheric conditions, this part of pyrite is rapidly replaced by jarosite and anhydrite.
The orbs are yellow, which comes from jarosite, which forms as pyrite oxidizes.
Silver mineralization most commonly occurs as argentite or native silver associated with the lead-antimony oxide (argentian) bindheimite, with lesser argento jarosite, the silver telluride cervelleite, amalgam, native silver and possibly pyrargyrite.
A jarosite pond, which consisted of waste material from zinc processing, also had to be closed out.
FROST, GROSS, HYDROSTAT, INTROSPECT, JAROSITE, KEROSENE, LEPROSY, MOROSE, NEUROSIS, OLOROSO, PROSAIC, QUATROS.
The rover sent data to Earth showing that the rocks contain jarosite, an iron-bearing mineral that forms in acidic water.
On Earth, jarosite is found in association with acidic lakes or hot springs.