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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 ]
A photograph of silver ore. Silver-bearing ore typically contains very little silver, with much higher percentages of copper and lead. Specific minerals include argentite (Ag 2 S), chlorargyrite ("horn silver," AgCl), polybasite (Ag, Cu) 16 Sb 2 S 11), and proustite (Ag 3 AsS 3). [2]
The westernmost point is located at the Los Glaciares National Park, at the Santa Cruz Province. [4] The easternmost point is the "Hito V" (CONALI), located at Bernardo de Irigoyen, Misiones. [4] The highest point of Argentina is the Aconcagua mountain at the Mendoza Province, with 6962 m., which is also the highest point of South America. [1]
Argentite, silver sulfide of the orthorhombic system, one of the oldest silver ore minerals. In addition, there are several more mixed minerals, part of the name of which is also silver glance: Antimony-silver glance (German: Antimonsilberglanz) — Stephanite; Black silver glance (German: Schwarzsilberglanz) — Stephanite
Acanthite var. argentite (a pseudomorph after argentite) and β-quartz pseudomorphs are sometimes sold. [31] Ramdohr (1936) discovered that the type material of schapbachite (Ag 0.4 Pb 0.2 Bi 0.4 S) was a mixture of galena (PbS) and matildite (AgBiS 2). [32] It was discredited (1982) as it was found unstable at 'standard temperature and ...
The Gold Creek Basin is located around Gold Creek. ... A workman, named Ray Wiley, remembers "it was fine-grained argentite – high-grade silver ore." [1] ...
Silver is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc refining. Silver is a naturally occurring element.
Argentite is the stable form above that temperature. As argentite cools below that temperature its cubic form is distorted to the monoclinic form of acanthite. Below 173 °C acanthite forms directly. [3] [6] Acanthite is the only stable form in normal air temperature.