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12 Supergene Ore and Gangue Characteristics

supergene sulfide mineral assemblages in ancient deposits are dominated by a small group of Cu-rich minerals chal-cocite bornite covellite digenite and enargite In the super-gene blanket these sulfides may be intergrown with varying amounts of relict hypogene sulfides such as pyrite chalco-pyriteGet price


Sulfide To Sulfate Reaction Mechanism

----- Sulfide to Sulfate Reaction Mechanism A Study of the Sulfide to Sulfate Reaction Mechanism as it Relates to the Formation of Acid Mine Waters Ohio State University Research Foundation Columbus Ohio 43210 for the FEDERAL WATER POLLUTION CONTROL ADMINISTRATION DEPARTMENT OF THE INTERIOR Program Number FWPCA Grant No 14 010 FPS February 1970 Get price


Pyrite Depressant on copper ore

Am looking at what can be used to depress pyrite in sulphide ore without affecting copper recovery greatly Am currently undertaking a project on the depression of pyrite am trying to use aeration and milling at high pH and its proving to work but at the expense of copper recovery Get price


The effect of saline water on copper activation of pyrite

Jan 15 20193 3 Copper activation on pyrite surface in fresh water and seawater In this section the effect of seawater on copper activation on pyrite surface was studied through flotation and cyclic voltammetry (CV) using single pyrite in the presence of copper ions 3 3 1 Pyrite flotationGet price


Pyrite can protect you from harmful energies Discover how

Mar 21 2019Pyrite in contrast will leave a mark that is dark green or black in color You can also do the scratch test with copper Copper is softer than Pyrite Therefore if you try to scratch a piece of copper with Pyrite it will leave a mark on the copper as well Pyrite glitters when exposed to light Get price


10 Minerals That Have Metallic Luster

Of around 50 metallic minerals just a few make up the great majority of specimens This gallery includes their color streak Mohs hardness other distinguishing characteristics and chemical formula Streak the color of the powdered mineral is a truer indication of color than the surface appearance which can be affected by tarnish and stains Get price


Chalcopyrite Mineral Data

Chalcopyrite Moncheite Comments White moncheite with chalcopyrite (orange blue and violet tarnishing colors) in silicate matrix Polished section (from microprobe analysis) in reflected light Location Lukkulaisvaara ultrabasic Massif Olanga (Oulanka) River Oulanka plutonic complex Karelia Republic Northern Region Russia Scale Picture size 0 11 mm Get price



(also copper pyrite) a mineral a sulfide of copper and iron CuFeS 2 with small admixtures of Ag Zn Au As Se and Sn Chalcopyrite crystallizes in the tetragonal system Its crystal structure is similar to that of sphalerite but the zinc atoms are replaced by copper and iron atoms Get price


Fool's Gold and Real Gold

Pyrite has a greenish black streak Learn how to do the streak test here B) Hardness Gold has a Mohs hardness of 2 5 while pyrite has a Mohs hardness of 6 to 6 5 Gold will not scratch a copper surface (Mohs hardness of 3) but pyrite will easily scratch copper Gold can be scratched by a sharp piece of copper but copper will scratch very Get price


Copper The mineral native Copper information and pictures

Native Copper was the only source of copper until the turn of the century when extraction methods were improved The copper ores are far more abundant than Native Copper and are the main source of copper today Even though Native Copper is sometimes mined on its own for the copper content Get price


Pyrite Value Price and Jewelry Information

Pyrite Pyrite is more commonly known as fool's gold and is familiar to nearly every mineral collector It has been used for centuries both in jewelry and as an ore of iron "Marcasite" stones in jewelry are frequently pyrite since the latter is more stable Get price


Copper (cu)

The oldest objects made of copper are beads found in northern Iraq which date to about 9000 b c Tools for working with copper made in about 5000 b c have also been found In the New World Native Americans used copper objects as early as 2000 b c The symbol for copper Cu comes from the Latin word cuprum Cuprum is the ancient name of the island of Cyprus Get price


Pyrite oxidation a state

The oxidation of pyrite to release ferrous iron and sulfate ions to solution involves the transfer of seven electrons from each sulfur atom in the mineral to an aqueous oxidant Because only one or at most two electrons can be transferred at a time the overall oxidation process is quite complex Get price


the formula of copper pyrite is

Copper pyrite is a principal ore of copper Also known by name chalcopyrite It is widely distributed yellow mineral consisting of a sulphide of copper and iron in tetragonal crystalline form Its formula is CuFeS2 Chalcopyrite is found in igneous rocks and copper-rich shales Because of its shiny look and often yellow color it is sometimes mistaken for gold and for this reason it is also called Get price


Chalcopyrite vs Pyrite

Chalcopyrite is a derived term of pyrite As nouns the difference between chalcopyrite and pyrite is that chalcopyrite is (mineral) a yellow mineral that is a mixed sulfide of copper and iron with the chemical formula cu]]fe[[sulfur|s 2 while pyrite is (mineralogy) the common mineral iron disulfide (fes 2) of a pale brass-yellow color and brilliant metallic luster crystallizing in the Get price


Difference Between Pyrite and Chalcopyrite

Nov 23 2017Its color is described as brass-yellow This mineral has an isometric crystal system The molar mass of one formula of FeS 2 is about 119 98 g/mol Pyrite is an opaque mineral and has a metallic luster This mineral can be formed in any type of environment at Get price



Chalcopyrite (/ ˌ k l k ə ˈ p aɪ r aɪ t -k oʊ-/ KAL-ko-PY-ryt) is a copper iron sulfide mineral that crystallizes in the tetragonal system It has the chemical formula CuFeS 2 It has a brassy to golden yellow color and a hardness of 3 5 to 4 on the Mohs scale Its streak is diagnostic as green tinged black On exposure to air chalcopyrite oxidises to a variety of oxides hydroxides Get price


CHALCOPYRITE The World's Most Important Ore of Copper for

Unlike pyrite which is often subject to decay chalcopyrite is generally stable and is commonly referred to as the most stable copper mineral Chalcopyrite Peacock Ore Mina San Martin Mun de Sombrerete Zacatecas Mexico GEOLOGIC OCCURRENCE OF CHALCOPYRITE Chalcopyrite is the most widespread copper-bearing mineral on earth Get price



Chalcopyrite may also alter to iron-bearing minerals because it contains iron as much as copper Its chemical formula is simple as is common among the sulfide mineral group CuFeS 2 Pyrite is paler and greenish yellow on the left Chalcopyrite next to it has much more intense yellow color Reddish patch on the left is an igneous rock monzonite Get price


University of Minnesota's Mineral Pages Chalcopyrite

Chalcopyrite is a striking bright yellow metallic mineral that occurs in nearly all sulfide deposits Initially it may be easy to confuse chalcopyrite or copper pyrite (CuFeS 2) with pyrite (FeS 2) but the two can be distinguished by their relative hardness and chalcopyrite's iridescent tarnish Pyrite Get price



These numbers have the ratio 1 1 2 from which we obtain the formula for copper pyrite—CuFeS 2 The formulas obtained directly from the results of a quantitative analysis are called empirical or simplest formulas In order to establish the molecular formula of a substance it is necessary to determine the molecular weight of the substance Get price


Pyrite Mineral information data and localities

Pyrite Group The isometric (cubic) polymorph of orthorhombic marcasite Pyrite is a very common mineral (also one of the most common natural sulfides and the most common disulfide) found in a wide variety of geological formations from sedimentary deposits to hydrothermal veins and as a constituent of metamorphic rocks The brassy-yellow metallic colour of pyrite has in many cases lead to Get price


Pyrrhotite Mineral information data and localities

Pyrrhotite is found with pentlandite in basic igneous rocks veins and metamorphic rocks It is also often found with pyrite marcasite and magnetite It has varying magnetic powers depending on the number of Fe vacancies in the crystal structure Get price


The Extraction of Copper

The copper(II) ions are removed again from the organic solvent by reaction with fresh sulfuric acid producing a much more concentrated copper(II) sulfate solution than before Electrolysis of the new solution Copper(II) ions are deposited as copper on the cathode (for the electrode equation see under the purification of copper below) Get price


Difference Between Pyrite and Galena

Pyrite and Galena are important sulfide minerals but they are different from each other in various aspects Pyrite is iron ore while galena is lead ore This is the main difference between them The chemical formula of pyrite is FeS2 it is sulfide compound of iron where as galena is sulfide Get price


24 Best Pyrite images in 2012

Aug 9 2012- Pyrite more properly called iron pyrite is a famous mineral with the chemical formula FeS2 (iron sulphide) Its nickname is fools gold owing to its golden color and it a very common mineral found in a wide variety of environments all over the world Pyrite is not all that difficult to distinguish from pure gold It has a hardness of 6-6 5 (Mohs) - much harder than gold (and Get price


Pyrite Facts for Kids

The mineral pyrite or iron pyrite is an iron sulfide with the formula Fe S 2 This mineral's metallic lustre and pale-to-normal brass-yellow colour have earned it the nickname fool's gold because of its resemblance to gold The term pyrite may also be used for some other sulphides such as copper sulphide History Pyrite is the most common of the sulphide minerals Get price


what is the formula of iron pyrite and copper pyrite

what is the formula of iron pyrite and copper pyrite - Chemistry - TopperLearning what is the formula of iron pyrite and copper pyrite - Chemistry - TopperLearning 1800-212-7858 (Toll Free) 9 00am - 8 00pm IST all days Or Request a call Want a call from us give your mobile number below Get price


Copper Chalcopyrite Stock Images

Raw and unrefined copper pyrites or chalcopyrite in front of black background Geology and mineralogy Copper pyrite chalcopyrite Stone on wooden background Copper pyrite chalcopyrite Stone on neutral background Microscope image of colorful copper ore called chalcopyrite Microscope image of colorful copper Get price



Pyrite occurs in large deposits in contact metamorphic rocks Deposits of copper-bearing pyrite are widely distributed and often of great size They usually occur in or near the contact of eruptive rocks with schists or slates Pyrite weathers rapidly to hydrated iron oxide goethite or limonite pseudomorphs of goethite after pyrite are Get price



The mineral pyrite (/ ˈ p aɪ r aɪ t /) or iron pyrite also known as fool's gold is an iron sulfide with the chemical formula FeS 2 (iron(II) disulfide) Pyrite is considered the most common of the sulfide minerals Pyrite's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold hence the well-known nickname Get price



Sep 01 2019Formula of copper pyrite -The formula of copper pyrite is CuFeS₂ Formula of copper malachite -The formula of copper malachite is Cu₂CO₃(OH)₂ More about them Copper pyrite and copper malachite are the respective ores of copper From these ores we can obtain the original material after carrying out the processes of metallurgy Get price


CHALCOPYRITE (Copper Iron Sulfide)

Chalcopyrite (or copper pyrite) looks like and is easily confused with Pyrite FeS2 Chalcopyrite is one of the minerals refered to as Fool's Gold because of its bright golden color But real gold is a more buttery yellow and is ductile and malleable As an ore od copper the yield of chalcopyrite is rather low in terms of atoms per molecule Get price


Pyrite Mineral Data

Visit our Advertisers for Pyrite Dakota Matrix Minerals Google Search for Pyrite John Betts Fine Minerals Search for Pyrite McDougall Minerals Google Search for Pyrite Rock and Mineral Shows Google Search for Pyrite Weinrich Minerals Inc Google Search for Pyrite Ask about Pyrite here Ask-A-Mineralogist from the Mineralogical Society of Get price

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