10 LIVRES EN ANGLAIS EN RAPPORT AVEC «POLYBASITE»
Découvrez l'usage de
polybasite dans la sélection bibliographique suivante. Des livres en rapport avec
polybasite et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
U.S. Geological Survey Professional Paper
Small crystals of proustite (ruby silver) and of polybasite 1 are developed along
fracture seams in the original ore and upon crystals of quartz in vugs. Mostly they
are associated with secondary chalcopyrite in aggregates or coatings of minute ...
2
Professional Paper - United States Geological Survey
ARGENTITE, POLYBASITE, AND CHALCOPYRITE IN DRUSES. In the Montana
Tonopah, at a depth of about 500 feet, were found specimens showing good
crystals of argentite, polybasite (in part, perhaps, stephanite), and chalcopyrite,
often ...
Geological Survey (U.S.), 1905
3
Second Report on a Cooperative Investigation of the ...
POLYBASITE (AgCu)uSb.Su [.SVc alto Pearcelte] Polybasite, which is
isomorphous with the arsenic-bearing mineral *arceite, seems to be more widely
distributed than pearceite. How- ver, some of the material originally described as
...
4
The genesis of the ores of Tonopah, Nevada
A part of the argentite in these fractures is an alteration from polybasite, for the
exterior portions of flat hexagonal crystals of the typical polybasite form are now
sectile argentite. In the specimen from the MacDonald vein illustrated in Plate XII,
A, ...
Edson Sunderland Bastin, Francis Baker Laney, 1918
5
The Ore Minerals Under the Microscope: An Optical Guide
Polybasite. Geologic Environment: low- to moderate-temperature hydrothermal
Ag veins Reflection Colour: brownish tint Internal Reflections: specs, red
Reflectance [%]: Anisotropy: Pleochroism: 30.02 - 31.43 dark greenish to bluish
greys ...
6
Economic Geology of the Georgetown Quadrangle (together with ...
Polybasite, tetrahedrite, pyrargyrite, proustite, argentite, and native silver. —
Polybasite, pyrargyrite, proustite, and argentite, abundant in the relative order
named, may be discussed together. The last two are relatively rare; the first two ...
Josiah Edward Spurr, George H. Garrey, Sydney Hobart Ball, 1908
7
Geochemical and Tectonic Evolution of Arc-Backarc ...
... naumannite, polybasite, electrum, miargyrite, chalcopyrite, fahore, arsenopyrite
. quartz, adularia, kaolinite, sericite, pyrargyrite, stephanite marcasite, pyrite,
sphalerite, stibnite cinnabar calcite Koryu aguilarite, peareeite, polybasite,
electrum, ...
8
Geological Survey Professional Paper
It is intergrown with polybasite, and both minerals have replaced tetrahedrite. It is
commonly cut by super- gene replacement veinlets of chalcopyrite and pearceite
or proustite. Miargyrite is also abundant in the late silver ores associated with ...
9
Geology of the Tonopah Mining District, Nevada
ARGENTITE, POLYBASITE, AND CHALCOPYRITE IN DRUSES. In the Montana
Tonopah, at a depth of about 500 feet, were found specimens showing good
crystals of argentite, polybasite (in part, perhaps, stephanite), and chalcopyrite,
often ...
Josiah Edward Spurr, 1905
10
Coastal Glaciers of Prince William Sound and Kenai ...
Sb,S„ is an important mineral on *he Comstock lode, at Tuscarora and Tonopah,
Nev., at Georgetown, Aspen, and Rico, Colo., and in many other silver districts. It
generally accompanies ruby silver and polybasite, and in some districts it occurs
...
Ulysses Sherman Grant, Daniel F. Higgins (jr.), 1913
ACTUALITÉS CONTENANT LE TERME «POLYBASITE»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
polybasite est employé dans le contexte des actualités suivantes.
Collecting Microminerals in the Creede Mining District
Polybasite-pearcite was common in some portions of the orebody. Thin, crude, hexagonal prismatic crystals to 2 mm across were common. «RedOrbit, sept 08»
