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n.1.(Min.) A metallic mineral having a grayish tin-white color, and containing cobalt and iron, with sulphur and arsenic.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Other minerals found there include the sulfide minerals chalcopyrite, galena, glaucodot, marcasite, pyrite and sphalerite, as well as anglesite, barite, brochantite, "nail-head" calcite, devilline, dolomite, linarite, malachite, quartz, schulenbergite, serpierite, smolyaninovite and wroewolfeite.
There are also, of course, much fancier items in the collection, including sharp floater crystals and twins of some truly rare species: senarmontite, glaucodot, stolzite, hambergite, neptunite, epididymite, a petite cumengite "mace" on boleite, and (naturally) a superb specimen of a member of the whiteite group, specifically of whiteite-(CaFeMg).
Co-Ni-Fe sulfarsenides such as gersdorffite, glaucodot, arsenopyrite and cobaltite are found generally in the eastern part of the district, around Ait Ahmane.