10 LIBRI IN INGLESE ASSOCIATI CON «SPHALERITE»
Scopri l'uso di
sphalerite nella seguente selezione bibliografica. Libri associati con
sphalerite e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
Handbook of Flotation Reagents: Chemistry, Theory and ...
represents a significant problem in the separation of copper from sphalerite. This
is because the secondary copper minerals are soluble and during grinding, or in
situ, they release copper ions, which activate sphalerite. It is quite common that ...
Srdjan M. Bulatovic, 2007
2
Froth Flotation: A Century of Innovation
upon the addition of copper salts, sphalerite readily responds to flotation with low
additions of short-chain xanthates. As discovered by Leslie Bradford in 1913 in
Australia, this means of enhancing the floatability of sphalerite has become the ...
Maurice C. Fuerstenau, Graeme J. Jameson, Roe-Hoan Yoon, 2007
3
Applied Mineralogy in the Mining Industry
Trout Lake ores 4.2.1.1. Massive sphalerite (MS) ore type The massive sphalerite
ore type occurs at the hanging wall of the ore lenses, and consists of semi-
massive to massive sphalerite. The sphalerite contains gangue, pyrite and minor
to ...
4
Encyclopedia of Surface and Colloid Science
Zinc sulfate is used as a depressant for sphalerite in the selective flotation of lead
-zinc and copper-zinc ores. Its depressing action works only in alkaline pH. This
could be due to: 1) Zn(OH)2 precipitates or adsorbs on the sphalerite surface ...
5
Changing Scopes in Mineral Processing: Proceedings of the ...
Our examination of the influence of cyanideless depression on the surface
properties of galena and sphalerite was made under the important
environmentaly research of replacing toxic by nontoxic or less toxic reagents (
FeSO4-NaCN).
M. Kemal, V. Arslan, M. Canbazoglu, 1996
6
The Ore Minerals Under the Microscope: An Optical Guide
Strunz Classification - Group Members - Chemical Formula - Crystallography II/C.
01-Sphalerite group and related compounds II/C.01-10 II/C.01-20 II/C.01-30 II/C.
01-40 II/C.01-50 II/C.01-60 II/C.01-70 Sphalerite Hawleyite Metacinnabar ...
7
Indium: Geology, Mineralogy, and Economics
Indium substitution processes in sphalerite accounts for even higher enrichments
in most deposits. This indium enrichment in more complex, polymetallic ores is
related to the high-temperature introduction of indium, copper, and tin by diffusion
...
Ulrich Schwarz-Schampera, Peter M. Herzig, 2002
8
Understanding Mineral Deposits
refractory character of sphalerite in solid state reactions (Barton 1 970).
Hutchinson and Scott (1980) observed that in many metamorphosed ores the
sphalerites, which were poikiloblastically encapsulated within metablastic pyrite,
appeared ...
9
Field Guide to Rocks & Minerals of Southern Africa
SPHALERITE (Zn,Fe)S Composition: sulphide Crystal system: cubic Hardness:
3.5-4 Specific gravity: 3.9-4.1 Streak: white to pale brown Lustre: resinous,
adamantine Named from the Greek 'sphaleros' meaning 'mistaken', this zinc
sulphide ...
10
Fractures, Fluid Flow and Mineralization
Apart from pyrite, sphalerite and subordinate galena, arsenopyrite and
chalcopyrite may also be present. Sericite is absent or limited to incipient
alteration of adularia. In some portions of the veins, very fine grained aggregates
of rounded ...
Ken McCaffrey, Lidia Lonergan, Jamie Wilkinson, 1999
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «SPHALERITE»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
sphalerite nel contesto delle seguenti notizie.
Ironbark Zinc has more high grade zinc potential at Mestersvig
Mineralisation, in the form of galena, sphalerite, +/- chalcopyrite and silver are found within outcropping quartz veins located throughout the project area. «Proactive Investors Australia, lug 15»
North River Resources plc Namib Bankability Strengthened …
The use of zinc sulphate as a reagent, commonly used in other lead/zinc operations, was identified as a major contributor to slowing down the sphalerite ... «DirectorsTalk Interviews, lug 15»
Calibre Mining Announces Initial Results From Phase I Diamond …
Sulphides consist of pyrrhotite and pyrite, sphalerite, chalcopyrite with lesser ... and minor carbonate veinlets with abundant sphalerite, galena, chalcopyrite, ... «MarketWatch, lug 15»
Avrupa Drills 57.35 Meters of 2.09 g/t Gold at Slivovo
Native gold, ranging from ten micron to one-millimeter size grains, is interstitially associated with galena, sphalerite, bismuthinite, as free grains in quartz - calcite ... «Junior Mining Network, giu 15»
Mineralization Discovered on Vine Property Supports Potential for …
Mapping and prospecting discovered disseminated sphalerite (zinc sulphide) and galena (lead sulphide) in a stratigraphic geological unit called the Sundown ... «MarketWatch, giu 15»
Ivanhoe Mines Reports Additional High-Grade Zinc, Copper, Silver …
Drilling at depth to the south of the Big Zinc zone has revealed a new intersection of massive sulphide mineralization containing sphalerite (zinc), chalcopyrite ... «Yahoo Finance UK, feb 15»
Project Review: Romarco's Haile Gold Deposit
Abundances of pyrite are up to 15% in some parts, along with minor molybdenite (molybdenum sulfide) , chalcopyrite (copper-iron sulfide) and sphalerite ... «Geology for Investors, feb 15»
Stakeholder Gold Corp. Reports Visible Copper-Lead-Zinc at Bass …
Between 80 and 178 meters, the shear exhibited extensive sericite alteration and pervasive, pyrrhotite, +/- pyrite, +/- galena, +/- sphalerite, +/- chalcopyrite ... «Baystreet.ca, gen 15»
Red Mountain Mining intersects breccia lode at Camo
... quartz-barite-enargite lode, with high silver-copper grades, to a hydrothermal breccia lode with sulphides such as pyrite, galena, chalcopyrite and sphalerite. «Proactive Investors USA & Canada, set 14»
A Simple Mineral Has Geochemical Power That Helps Spark Life
Sphalerite, zinc sulfide, is commonly found wherever metal ores are concentrated, including interesting places like seafloor black smokers. New work shows that ... «KQED, ago 14»
