berthierite


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berthierite

[′bər·thē·ə‚rīt]
(mineralogy)
FeSb2S4 A dark steel gray, orthorhombic mineral consisting of iron antimony sulfide.
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References in periodicals archive ?
Luis Burillo brought to his InnSuites room in Tucson, besides the Peruvian rhodonites and Romanian berthierites already described, a selection of small-but-choice liddicoatite specimens of two different styles, found of late at two different places in Madagascar.
The mineral forms rare microscopic fibrous intergrowths with jamesonite and berthierite in 3mm-thick veins.
Gudmundite occurs commonly as isolated, anhedral, isometric grains to 2 mm and in aggregates to 5 mm, mainly in stibnite, berthierite, quartz and carbonates.
It forms typical acicular intergrowths ([less than or equal to]1 mm) with berthierite and boulangerite (?
In both associations, berthierite is virtually indistinguishable from stibnite without employing optical, X-ray or microprobe techniques.
Berthierite is also present on the specimen, and the schafarzikite may have been formed by alteration of that mineral.
In the gudmundite-albite-dolomite assemblage, quartz, albite, pyrrhotite and dolomite appear to be the earliest minerals to have formed, followed by berthierite, gudmundite, stibnite and adularia (?