Pyrite
Pyrite
Pyrite (pronounced: /ˈpaɪraɪt/), also known as fool's gold, is a common sulfide mineral that has a metallic luster and a yellowish color, resembling gold. The term "pyrite" is derived from the Greek word "πυρίτης λίθος" (pyritēs lithos), which means "stone of fire" or "in fire," due to its ability to create sparks when struck against steel.
Characteristics
Pyrite is a brass-yellow mineral with a bright metallic luster. It has a chemical composition of iron sulfide (FeS2) and is the most common sulfide mineral. It forms at high and low temperatures and occurs in small quantities in igneous, metamorphic, and sedimentary rocks worldwide.
Uses
Historically, pyrite was used in the production of sulfuric acid, but today it is more commonly associated with the manufacture of sulfur dioxide for use in such applications as the paper industry. It is also used in the manufacture of ammonium sulfate and sulfuric acid, which are used in the chemical industry.
Health Risks
Exposure to pyrite can cause health problems due to the sulfur dioxide gas that it releases when it oxidizes. This gas can cause respiratory problems and is particularly harmful to people with asthma and other respiratory conditions.
Related Terms
- Chalcopyrite: A copper iron sulfide mineral that has a similar appearance to pyrite but is softer and can be scratched with a knife.
- Marcasite: A mineral that is physically and crystallographically distinct from pyrite, although they have the same chemical formula.
- Sulfide mineral: A group of minerals in which sulfur is combined with a metal or semimetal.
External links
- Medical encyclopedia article on Pyrite
- Wikipedia's article - Pyrite
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