clinopyroxene
3
Coin
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Pyroxene (pyroxene,augite) is a common single-chain silicate rock-forming mineral, which widely exists in igneous rocks and metamorphic rocks. The main framework is composed of silicon-oxygen molecular chains. The crystal structure is monoclinic or orthorhombic, and the main component is XY(Si,Al)2O6, where X represents calcium, sodium, magnesium and divalent iron, there are also some kinds of ions such as zinc, manganese and lithium. Y represents smaller ions such as chlorine, aluminum, trivalent iron, vanadium, scandium, etc.
