CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «COVELLITE»
Descoperă întrebuințarea
covellite în următoarea selecție bibliografică. Cărți în legătură cu
covellite și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
The Book of Stones: Who They Are and What They Teach
COVELLITE key words Psychic abilities, inner vision, transformation, bridging I
he higher and lower worlds ELEMENT Storm CHAKRAS All Covellite is a copper
sulfide mineral with a hardness of 1.5 to 2. Its crystal system is hexagonal.
Robert Simmons, Naisha Ahsian, 2007
2
Hydrometallurgy in Extraction Processes
Covellite Investigations on ferric sulfate leaching of covellite (CuS) can be
divided into two groups: those conducted in either the absence or presence of
bacteria. The early investigations on covellite leaching with Fe2(SO4)3 solutions
in the ...
C. K. Gupta, T. K. Mukherjee, 1990
3
Atlas of the Textural Patterns of Ore Minerals and ...
80 shows chakopyrite (CuFeS2) marginally replaced by covellite (CuS). In
contradistinction though to the cases where the substitute is enriched in Cu, Fig.
81 shows chaJcocite (Cu2S) replaced by covellite where relative migration (
perhaps ...
4
United States Geological Survey Professional Paper
The northernmost vein is the Covellite (or North Grcyrock). It appears to be cut by
a northward-dipping clay slip having a general northwest direction, which
displaces it, shifting it along the fault plane for 50 feet. In the upper levels this fault
...
5
Geological Survey Professional Paper
... several sulfides; and finally precipitation of chalcedony. In places more than
one younger episode of hydrothermal remineralization is evident. Near-surface
weathering of the veins resulted in formation of small amounts of calcite, covellite
...
Geological Survey (U.S.), 1984
6
Professional paper - United States Geological Survey
4. Malachite, chalcanthite. Eureka Hill. 1. Quartz, enargite, tetrahedrite, galena. 2.
Anglesite, covellite. 3. Cerusite. In a few specimens malachite and clinoclasite
are earner than olivenite. Pharmacosiderite may be earlier or later than malachite
.
Geological Survey (U.S.), 1919
7
The Geology and Ore Deposits of Ely, Nevada
On the other hand, the change of chalcopyrite through bornite and covellite to
chalcocite may be brought about artificially in different ways, some of which have
been already noted, and so far as the writer's experiments have gone it seems to
...
8
The Enrichment of Ore Deposits
Covellite forms from sphalerite also at the Kyshtim mine, Eussia.8 Covellite is
rather abundant in the San Francisco region, Utah.* Much is present in the Horn
Silver mine, where it is a replacement of pyrite, zinc sulphides, and galena and
an ...
William Harvey Emmons, 1917
9
Electrochemistry in Mineral and Metal Processing 8 (EMMP 8)
oligosulfide series, CuS2, would be similar to one of the two S environments in
covellite, and indeed, a thin CuS-like layer might have been present at the
surface of the chalcocite. Interpretation of the S 2p spectrum for a CuS surface is
...
F. M. Doyle, R. Woods, G. Kelsall, 2010
10
Hydrometallurgy: Principles and Applications
Lowe [168] investigated the leaching of covellite in the acid solution of ferric ions
in the temperature range 40–70 °C. He found the linear course of the reaction
rate with the activation energy of 59 kJ/mole. The leaching rate was independent
of ...
ȘTIRI NOI CARE INCLUD TERMENUL «COVELLITE»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
covellite în contextul următoarelor știri.
Archer Exploration Limited (ASX:AXE) Significant Copper at Spring …
... (Cu2O) and native copper (Cu) before passing vertically into transition sulphide zone consisting of chalcocite (Cu2S), and covellite (CuS). «ABN Newswire, Iul 15»
BK Copper Project - Strong Copper Results Confirm and Extend BKM
The covellite-chalcocite copper mineralization in each hole appears to be considerably more pervasive within the host rock than in other parts ... «MarketWatch, Iun 15»
Bankruptcy court finds against Rialto Theater buyer
According to court documents, Steve and Sharon Gotcher, of Butte, agreed to buy a stake in the Rialto Theater in Bozeman and the Covellite ... «The Bozeman Daily Chronicle, Iun 15»
Mining Roundup
In all four holes drilled to date, and particularly BKM32450-01 and BKM31750-02, visual copper mineralization comprising chalcocite, covellite ... «Interactive Investor, Mai 15»
New report sheds light on the chalcocite-digenite group market …
It is generally intergrown and associated with covellite, chalcocite and bornite among others. Digenite occurs in midway zone of supergene ... «WhaTech, Mar 15»
OPINION PIECE: Consider restoring Covellite as nonprofit movie …
A Butte resident is raising the possibility of running the Covellite Theater, 215 W. Broadway St., pictured above, as a nonprofit movie theater. «Montana Standard, Mar 15»
Rallying for Kosovar Mineral Wealth & Trepca Mines
... Bournonite, Calcite, Chalcanthite, Chalcedony, Chalcopyrite, Childrenite, Chlorite, Covellite, Galena, Cubanite, Diopside, Dolomite, Enargite, ... «Onislam.net, Ian 15»
Art to Heart items include chairs made of skis
Want a table and set of Adirondack chairs made from repurposed skis? A poster autographed by KISS members? Or a kite-shaped Covellite ... «Richmond, Ian 15»
Copper Fox Completes Inferred Mineral Resource Estimate for the …
... that does not report to an acid soluble assay and consists of potentially leachable secondary sulphides such as chalcocite and covellite. «Marketwired, Dec 14»
Copper Fox Announces Preliminary In-Situ Leach Test Results from …
... solubility in sulfuric acid and the highest solubility in cyanide indicating that the main copper mineralization could be chalcocite and covellite. «Yahoo Finance UK, Dec 14»
