argentite - Minerals
Argentite is the high-temperature form of the mineral Acanthite, and it crystallizes in the isometric system. However, Argentite cannot exist at normal temperatures, and converts to Acanthite. All specimens labelled as Argentite are really Acanthite pseudomorphs after Argentite.
Argentite - Wikipedia
Argentite sample The unit cell of argentite. In mineralogy, argentite (from Latin argentum ' silver') is cubic silver sulfide (Ag 2 S), which can only exist at temperatures above 173 °C (343 °F), [1] 177 °C (351 °F), [2] or 179 °C (354 °F). [3] When it cools to ordinary temperatures it turns into its monoclinic polymorph, acanthite.
Argentite Mineral Data
Argentite is stable above 179 C. Acanthite is stable below 179 C. Comments: Dark metallic acanthite crystals up to 3 mm. Most of the crystals are a cubic habit, so the acanthite is pseudomorphing the original argentite. Location: San Juan de Rayas Mine (Rayas Mine), Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico. Scale: 18x12x12 mm.
辉银矿 - 百度百科
用于提炼银和 银化合物。 银的主要来源是在提取 铜 、 铅 、 锌 后的 副产物。 （AgAu）、辉银矿（Ag2S）、深红银矿（Ag3SbS3）、 淡红银矿 （Ag3ASS3）、角银矿（AgCl）、脆银矿（Ag2SbS3）、 锑银矿 （Ag3Sb）、 硒 银矿（Ag3Se）、碲银矿（Ag2Te）、锌锑方辉银矿（5Ag2Sb2S3）、硫锑铜银矿（8（AgCu）SSb2S3）。 化学成分Ag2S，含Ag87.1%。 等轴晶系。 晶体呈立方体、八面体，通常为致密块状。 颜色和条痕均为铅灰色。 新鲜断口呈金属光泽 …
Argentite: Mineral information, data and localities. - mindat.org
The name 'argentite' refers to the high-temperature form of silver sulphide, only stable over 177°C. Below this temperature, any samples of 'argentite' ...
Argentite - Rausser College of Natural Resources
Argentite, a silver sulfide mineral, is an important constituent of silver ore deposits. It contains 87% silver, and forms blackish-gray coatings or masses with a metallic luster and a shining black STREAK. Characteristic is the ease with which it is cut.
Argentite | Mineral and Gem Collection
Department of Geosciences · Princeton University · Guyot Hall · Princeton NJ 08544 Contact information: Phone - 609-258-4101 · Fax - 609-258-5275 · E-mail
Argentite - Wikipedia
In mineralogy, argentite (from the Latin argentum, silver) is cubic silver sulfide (Ag 2 S), which can only exist at temperatures above 173 °C, 177 °C or 179 °C. When it cools to ordinary temperatures it turns into its monoclinic polymorph, acanthite. Argentite …
Argentite - Encyclopedia
ARGENTITE, a mineral which belongs to the galena group, and is cubic silver sulphide (Ag 2 S). It is occasionally found as uneven cubes and octahedra, but more often as dendritic or earthy masses, with a blackish lead-grey colour and metallic lustre.
Argentite : CSIRO Spectroscopy Database
The Luminescence Database is a free on-line reference tool for researchers in the fields of cathodoluminescence, photoluminescence, ionoluminescence, and related luminescence spectroscopies. The database contains >3800 entries of known luminescence emission lines from a range of materials, including minerals and synthetic compounds.
- 某些结果已被删除