What Is Pyroxene Used for?
Pyroxene Minerals Are Minor to Secondary Components of Some Rocks That Are Used as Crushed Stone and Dimension Stone. a Few Pyroxene Minerals Are Used as Gem...
Pyroxene minerals are minor to secondary components of some rocks that are used as crushed stone and dimension stone. A few pyroxene minerals are used as gem materials, but only in rare instances when they have attractive color and clarity. Jadeite, diopside, and spodumene are the most important pyroxene gem materials.
Where are pyroxene found?
Pyroxenes are the most significant and abundant group of rock-forming ferromagnesian silicates. They are found in almost every variety of igneous rock and also occur in rocks of widely different compositions formed under conditions of regional and contact metamorphism.
What are the properties of pyroxene?
- Chemical Composition: XY(SiO3)2 where X=Y=Ca, Mg, Fe.
- Hardness: 5-6.
- Color: dark green to black (augite); white to green.
- Specific Gravity: 3.2-3.9.
- Cleavage Planes: two, perfect, nearly at right angles.
- Crystal Structure: 8-sided stubby crystals.
- Luster: nonmetallic.
- Other Properties: igneous and metamorphic rocks.
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