Wednesday, February 27, 2019

Pyrite

pyrite is a very interesting mineral for many reasons. The name iron pyrite comes from the Greek word pyr which means fire, and was named be slipit was represent that sparks would fly from it if struck against another minerals like steel. In early times, this sparking faculty gave people a way of creating fire, and in later times, thisability make it popular forusein early firearms deviceslike the wheel lock. like a shot fools goldis calledFools Goldbecause throughouthistory peoplehave sour it for Goldbecause ofits similar visible structure, metallic surfaceand brassy chickenhearted color.The funny thing is Gold is often foundwith toPyrite deposits. Pyrite shtup easily be distinguished from Gold. Pyriteis much transport in color andmuch harder. Even though Pyrite is a fairly hard mineral, its crystals ar known tobreak and fall apart, because it is brittle. Pyrite is jet in the Earths crust and found in almostevery affirmable geological environment like sedimentary, metamo rphic, magmatic and hydrothermal deposits. Pyrites usual crystal forms are cubic, octahedron and pyritohedron.When a cube and pyritohedron crystal combine, theface of the cubeappear to be grooved with lines. Many times Pyrite will be foundin combinations of all these forms, still also can occur in masses, globular, give outor reniform. Pyrite is also commonly foundas smooth nodules. A mixture of this nodularform, and are called Pyrite Suns or Pyrite Dollars,are popular for collectors. Pyrite has the same chemical makeup as Marcasite but has a different structure, and shape. Pyrite is a polymorph ofMarcasite and it can be extremelydifficult to tell apart.The name Marcasite came from the Arabic word for Pyrite. The confusion between the two minerals is common because the jewelrytrade uses the nameMarcasite, when they are actuallyselling Pyrite. Actual Marcasite cant be apply in jewelry because it is even more likely than Pyriteto crumble into apowder. Another mineral named Bravoi te is very closely related to Pyrite,but contains 20% more nickel. Even though Pyrite contains a lavishly percentage of Iron and is common, it is not used as a citation for Iron today. It was mined as a source for Sulfur during WWII to enkindle sulfuric acid.The Sulfurcomponent ofPyrite was in high hire as a strategic chemical, and was found in parts of Tennessee. The Pyrite supplied them with enough sulfuric acid to get the job done. Pyrite can be used to make marcasite jewelry and it usually set in silver. Pyrite is always in the process of being created or destroyed. It is for the most part a good mineral but does have its down sides. convert released from decomposing pyrite combines with water producing sulfuric acid, which leads to acid rock drainage and potentially acid rain.Pyrite also has caused problems for miners. The main issue is dust explosions brought from Pyrite. To prevent these explosions the miners nebuliser limestone on the exposed coal surfaces. Pyrite has also been known to cause some structural damage, and did so in the U. S. , Canada, and Ireland. In 2009 problems with Chinese drywall trade into the U. S. after Katrina were results of oxidation of pyrite. Stone buildings containing pyrite have been known to crouch brown. Other than a few problems, Pyrite is a beneficial mineral.

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