quaternary system

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quaternary system

crystallography

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olivine
Metamorphic rocks
In the quaternary (i.e., four-component) system Fe₂O₃-FeO-SiO₂-H₂O, fayalite is associated with the minerals greenalite (iron-serpentine), minnesotaite (iron-talc), and grunerite (iron-amphibole) in various metamorphic stages. In chemically more complex environments, which, in addition to the above components, also involve lime (CaO)
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In the quaternary (i.e., four-component) system Fe₂O₃-FeO-SiO₂-H₂O, fayalite is associated with the minerals greenalite (iron-serpentine), minnesotaite (iron-talc), and grunerite (iron-amphibole) in various metamorphic stages. In chemically more complex environments, which, in addition to the above components, also involve lime (CaO)
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