Berthierite is a mineral, a sulphide of Iron and Antimony, formula FeSbS4. It is often mistaken for Stibnite. Discovered in Luxemburg, it is named for the French chemist, Pierre Berthier. Stibnite, sometimes also called antimonite, is a sulfide mineral. ...
Berthierite, an iron antimony sulfide mineral, was reported by Palache (1941b) as “needles of an antimony compound” from Sterling Hill.
Subsequent examination of these by Cook (1973), and by the writer using X-ray diffraction and energy-dispersive analytical methods, established that some of them are berthierite (see also zinkenite).
The associated minerals are the same as given for realgar from the 900 level of Sterling Hill.
Berthierite is easily confused with the closely related mineral stibnite.
The chemistry of berthierite differs from stibnite by having an additional sulfur and one iron ion.
Characteristic wise, berthierite differs from stibnite in being found more frequently in acicular to fibrous clusters, having a brown streak and non flexible crystals.
Feeds |
Contact