wirehaired pointing griffon
wirehaired pointing griffon breed of medium-sized sporting dog developed in Holland and France in the late 19th cent. It stands about 22 in. (56 cm) high at the shoulder and weighs between 45 and 60 lb (20.4-27.2 kg). Its harsh, bristly coat may be steel gray, chestnut, or grayish white with chestnut splashes. The tail is docked. Although a slow hunter, the griffon is a strong swimmer and a good pointing retriever with an excellent sense of smell. See dog .
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Leaching of sulfidized chalcopyrite with H(2)SO(4)-NaCl-O(2)
Magazine article from: Metallurgical and Materials Transactions; 4/1/2003; ; 700+ words
; The recovery of copper from chalcopyrite by leaching is complex not only...the leaching of sulfidized chalcopyrite is very attractive because of...the leaching of the untreated chalcopyrite. In this work, the results...
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Sulfidation of chalcopyrite with elemental sulfur
Magazine article from: Metallurgical and Materials Transactions; 2/1/2003; ; 700+ words
; The sulfidation of chalcopyrite concentrate with elemental sulfur...showed that the sulfidation of chalcopyrite forms CuS and FeS^sub 2^ at...were formed. The sulfidation of chalcopyrite proceeds mainly through the gaseous...
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Copper Leaching from Chalcopyrite Concentrates
Magazine article from: JOM; 7/1/2005; ; 700+ words
; Chalcopyrite (CuFeS^sub 2^) is one of the most...been developed to leach copper from chalcopyrite concentrates. These processes recover...leaching of the copper component of chalcopyrite concentrates, followed by solvent...
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Kinetics of the sulfidation of chalcopyrite with gaseous sulfur
Magazine article from: Metallurgical and Materials Transactions; 2/1/2003; ; 700+ words
; The sulfidation of chalcopyrite with gaseous sulfur in the temperature...with a shrinking core of unreacted chalcopyrite surrounded by successive layers...by the reaction occurring at the chalcopyrite-pyrite interface, resulting...
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Microbially enhanced removal of pyrite and chalcopyrite from oxide gangue minerals with reference to desulfurization of tailings
Magazine article from: Minerals & Metallurgical Processing; 11/1/2004; ; 700+ words
; ...ofsulfide minerals, such as pyrite and chalcopyrite ,from oxide gangue minerals, quartz...effective separation of pyrite and chalcopyrite from quartz and calcite from the viewpoint...above scenario, a system of pyrite and chalcopyrite along with quartz and calcite was chosen...
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A recipe for microwave semiconductors. (microwave used to make batches of chalcopyrites) (Brief Article)
Magazine article from: Science News; 6/19/1993; 628 words
; ...easier way to make chalcopyrites, materials used in...extremely thin films of chalcopyrite and layer them to...semiconductors. Making the chalcopyrite is the hard part...elements to crystalline chalcopyrite. In the June 11 SCIENCE...they can now make chalcopyrites in just three minutes...
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Extraction of copper from chalcopyrite concentrates without sulfuric acid generation via chlorination: Part 2: Selective oxidation of chlorinated products
Magazine article from: Minerals & Metallurgical Processing; 11/1/2000; ; 700+ words
; ...hydrometallurgical processing of a chalcopyrite concentrate. In this article, the...undissolved. Key words: Copper, Chalcopyrite, Chlorination, Fluidized bed reactors...metals. While chemical leaching of chalcopyrite concentrates in aqueous chloride media...
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Electronic structure, linear, nonlinear optical susceptibilities and birefringence of CuInX.sub.2 (X = S, Se, Te) chalcopyrite-structure compounds.(Research article)
Magazine article from: PMC Physics B; 5/19/2008; ; 700+ words
; ...10, 11]. Ternary chalcopyrite appear to be promising...The [math omitted] chalcopyrites concerned in this...structures, such as chalcopyrites, the MTA is a poor...dynamical properties of chalcopyrites are well known and...properties of the chalcopyrite semiconductor CuInS...
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Improved leaching performance of chalcopyrite by microbial cultures subjected to mutation
Magazine article from: Minerals & Metallurgical Processing; 5/1/2008; ; 700+ words
; ...to efficiently leach copper ion from chalcopyrite, microbial samples from acid mine...words: Mutation, Mixed cultures, Chalcopyrite, Leaching Introduction Bioleaching...samples were mixed and enriched. The chalcopyrite used in the experiments originated...
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Extraction of copper from chalcopyrite concentrates without sulfuric acid generation via chlorination, part 3: Integration of gaseous chlorination and selective oxidation
Magazine article from: Minerals & Metallurgical Processing; 11/1/2001; ; 700+ words
; ...conversion was tested for processing chalcopyrite concentrate. It was found that the...Fluidizing-bed reactor, Copper leaching, Chalcopyrite, Precious metals Introduction The...and sulfur chloride conversion on a chalcopyrite concentrate. The process was previously...
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chalcopyrite
Book article from: The Columbia Encyclopedia, Sixth Edition
chalcopyrite or copper pyrites , brass-yellow mineral, sometimes with an iridescent...in the tetragonal system but is usually found in the massive form. Chalcopyrite is of primary origin and occurs in igneous and metamorphic rocks and...
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massive sulphide deposits
Book article from: The Oxford Companion to the Earth
...causes precipitation of minerals such as pyrite (FeS 2 ), chalcopyrite (FeCuS 2 ), sphalerite (ZnS), and galena (PbS) that...pyrite or pyrrhotite, or both and a copper-rich sulphide (chalcopyrite) is overlain by more zinc- and lead-rich sulphides...
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copper
Book article from: The Columbia Encyclopedia, Sixth Edition
...Russia (in the Ural Mts.), and to a limited extent in Europe and the British Isles. The principal ore of copper is chalcopyrite , a sulfide of copper and iron, also called copper pyrite. Other important ores are chalcocite, or copper glance, a shiny...
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uraninite
Book article from: A Dictionary of Earth Sciences
...and in association with monazite , zircon , and tourmaline , in hydrothermal veins together with cassiterite , pyrite , chalcopyrite , and galena , and as a detrital material in alluvials . It is a major ore mineral for uranium metal.
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siderite
Book article from: A Dictionary of Earth Sciences
...clay into ironstone , also as a gangue mineral in hydrothermal veins together with other metallic ores (e.g. pyrite , chalcopyrite , and galena ) and as a replacement mineral in limestone ; dissolves slowly in cold, dilute hydrochloric acid, which effervesces...
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