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Pyrite

Pyrite. by-nc-sa: bonsaikiptb. When pyrite is struck against metal or a hard surface, it creates a spark. . by-sa: matthewvenn. by: westy559. Pyrite is also known as fool’s gold. Gold is much softer than pyrite. Pyrite often forms a cubic crystal structure. by-nc-sa: wiccked. GNU.

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Pyrite

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  1. Pyrite by-nc-sa: bonsaikiptb

  2. When pyrite is struck against metal or a hard surface, it creates a spark. by-sa: matthewvenn by: westy559

  3. Pyrite is also known as fool’s gold. Gold is much softer than pyrite. Pyrite often forms a cubic crystal structure. by-nc-sa: wiccked GNU by-nc-nd: Maitri

  4. Pyrite is found as a vein deposit… Vein pyrite may reveal the presence of other valuable minerals, such as chalcopyrite and gold. by-nc-nd: skylarprimm by-nc-sa: Ron Schott by-nc-sa: FarcePest

  5. by-nc: niallkennedy …as an accessory component of igneous and metamorphic rocks… by-nc-sa: Steve took it by-nc-sa: Ron Schott

  6. …or as a replacement mineral in sedimentary rock. These discs precipitate out of water saturated with iron and sulfur. by-nc-nd: courgettelawn Discs of pyrite (actually marcasite) are found in sedimentary rocks. These are often crumbly, but still they are just fool’s gold! by-nc: cobalt123

  7. Pyrite can replace organic materials, as it did in these ammonites. This is similar to the way petrified wood is made, only here the replacement material is pyrite instead of quartz. by-nc-sa: wiccked by-nc: Subliminally Obvious

  8. In the recent past, pyrite was mined as a sulfur source for sulfuric acid (H2SO4), an essential commodity for the chemical industry. by-nc-sa: bcostin This pyrite-rich sandstone is growing sulfur crystals. As water moves past the pyrite it takes up sulfur, and then deposits it when the rock is exposed to air. by-nc-nd: tridymite

  9. Coal, a sedimentary rock, often contains pyrite. Pyrite is the major source of sulfur emissions in coal and petroleum. by-nc-sa: Ron Schott by-nc: Indiana Stan by-nc-sa: vphill

  10. The burning of coal and/or petroleum creates massive amounts of sulfur dioxide (SO2) which reacts with atmospheric water and oxygen to produce sulfuric acid (H2SO4). When coal is mined, the pyrite reacts with the air and water to form sulfuric acid that drains out of the mine and into creeks. by-nc-sa: bcostin by-nc-nd: kh1234567890 by: Little Bitty Tam by-sa: savethewildup

  11. Sulfuric acid combines with water to create acid rain. Acid rain can damage building stones and monuments, cause a decline in natural lake systems and, in some areas, even pose a significant risk to human health. by-nc: trueclearlight by-nc-nd: s.e.rider

  12. Pyrite by-nc-sa: bonsaikiptb

  13. Our notation description public domain (none) Creative Commons Licenses by by-sa by-nc-sa by-nd by-nc-nd GNUGNU Free Documentation License © Copyright. All rights reserved media rights Many of the photos in this presentation were obtained through Flickr and Wikipedia. Funded by FIPSE and by the University of Minnesota. Compiled for Dr. Kent Kirkby, Department of Geology and Geophysics, by Kate Rosok, 2007. Each displayed image retains its original media rights. For educational purposes only; not to be used commercially.

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