acanthite


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Related to acanthite: argentite, alabandite

acanthite

[ə′kan·thīt]
(mineralogy)
Ag2S A blackish to lead-gray silver sulfide mineral, crystallizing in the orthorhombic system.
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The XRD diffraction patterns of these layers showed predomination of the phase of monoclinic silver sulphide acanthite [Ag.
Soon he began shipping some extraordinary silver mineral specimens back to New York, including the largest and best polybasite specimens known, large clusters of "poker chip" stephanite crystals, fine acanthite specimens and a few very fine pyrargyrite specimens.
The family sent Schmitter a number of fine mineral specimens in the early 1970s, and he passed them along to Miguel; included among them was what may be the world's finest acanthite.
Since then Fresnillo has become one of the world's greatest silver districts, and has also yielded superb specimens of crystallized pyrargyrite, stephanite, acanthite and polybasite.
2] * (2) Gold Au ** (2) Iridium (Ir,Os) * (5) Osmium (Os,Ir) * (5) Sulfur S *** Silver Ag (m) (2) Sulfides, Arsenides, Telluride Acanthite [Ag.
Hosted by volcanics and volcanoclastics, the vein system is over 10 metres wide and carries pyrite, acanthite, chalcopyrite, sphalerite, galena, native gold and electrum.
Here also were some promising azurite specimens from "Azila," a new Moroccan locality, and five spiky, lustrous thumbnails of acanthite from the Imiter mine.
They're all here, in multiple samples ranging in quality from "study grade" to absolutely superb: Freiberg acanthite and stephanite, Schneeberg proustite and erythrite and roselite and uranium-bearing species, Andreasberg pyrargyrite and dyscrasite and fluorite and pink apophyllite, Siegerland malachite and anglesite and millerite and galena, Schwarzwald fluorite and barite and silver, Obermoschel cinnabar and moschellandsbergite, Ems pyromorphite and cerussite, Johanngeorgenstadt mimetite, Ohrenstock hausmannite, Fichtelgebirge topaz and microcline and herderite, Ehrenfriedersdorf cassiterite and fluorapatite, Ilfeld manganite, Ronneburg whewellite, Hagendorf phosphates .
Among the few old-time specimens circulating at the show, a remarkable acanthite from the Baccu Arrodas mine, Sarrabus, Sardinia changed hands quickly and is now owned by collector Gian Mario Motta.
In the previous "What's New" column in the Mineralogical Record the new strike of acanthite and native silver specimens from China, first brought into the U.
An exciting occurrence of wire silver on acanthite also turned up at the show.
All these new finds were from Morocco, including a few of the erythrites, some nice roselite from the Agoudal quarry, Bou Azzer district, some cute loose clusters of azurite from Kerouchen, and a few acanthites from Imiter.