PYROXENE Meaning and
Definition
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Pyroxene is a term used in mineralogy to describe a group of minerals that belong to the inosilicate group. They are composed of single or complex chains of silicate tetrahedra linked together by various metal ions. Pyroxenes are typically found in igneous and metamorphic rocks and play a crucial role in geology.
This mineral group is characterized by its prismatic and columnar crystal habit, often forming long and thin crystals. It exhibits a range of colors from green and brown to black, with the most common varieties being black or dark green. Pyroxenes have a vitreous to dull luster and a brittle tenacity. Their hardness varies from 5 to 7 on the Mohs scale.
Chemically, pyroxenes consist primarily of silica (SiO2) and various metal oxides such as magnesium oxide (MgO) and iron oxide (FeO). The exact composition of pyroxene minerals is determined by the ratio of silica to metal oxides present.
The most well-known pyroxenes include augite, diopside, and enstatite. Augite is a common mineral found in basalts and gabbros, while diopside is frequently seen in metamorphic rocks such as marbles. Enstatite, as the name suggests, is a magnesium-rich pyroxene and is typically found in ultramafic igneous rocks.
The term pyroxene is derived from the Greek words "pyro" meaning fire and "xenos" meaning stranger, indicating its common occurrence in volcanic rocks. Its excellent crystal form and wide distribution make it an essential mineral for scientific research and a valuable resource in various industrial applications.
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A mineral of various shades of green, grey, and black, sometimes colourless; another name for augite, in allusion to its usual mode of occurrence in the igneous rocks.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for PYROXENE
Etymology of PYROXENE
The word "pyroxene" comes from the Greek words "pyr", meaning "fire", and "xenos", meaning "stranger" or "alien". It was coined in the early 19th century by French mineralogist René Just Haüy to describe a group of closely related silicate minerals that were observed in volcanic rocks. The name was given due to the association of these minerals with igneous rocks and the characteristic appearance of glistening inclusions observed under a microscope, which reminded Haüy of "strange fire".
Similar spelling words for PYROXENE
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