A variety of pyrope from Macon County, North Carolina is a violet-red shade and has been called " rhodolite ", Greek for " rose ".
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Is Pyrope claiming that I should just " put up " with the kind of abusive language freely administered by Arcayne, without addressing the situation on this page or anywhere else?
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The origin of most pyrope is in ultramafic rocks, typically peridotite from the Earth's mantle : these mantle-derived peridotites can be attributed both to igneous and metamorphic processes.
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In that massif, nearly pure pyrope occurs in crystals to almost 12 cm in diameter; some of that pyrope has inclusions of coesite, and some has inclusions of enstatite and sapphirine.
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In that massif, nearly pure pyrope occurs in crystals to almost 12 cm in diameter; some of that pyrope has inclusions of coesite, and some has inclusions of enstatite and sapphirine.
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Chemically, the rhodolite is a mix of pyrope and almandine garnets, part of the pyrope-almandine solid-solution series, with an approximate garnet composition of Py 70 Al 30.
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Chemically, the rhodolite is a mix of pyrope and almandine garnets, part of the pyrope-almandine solid-solution series, with an approximate garnet composition of Py 70 Al 30.
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Group I kimberlites exhibit a distinctive inequigranular texture caused by macrocrystic ( ) to megacrystic ( ) phenocrysts of olivine, pyrope, chromian diopside, magnesian ilmenite and phlogopite, in a fine to medium grained groundmass.
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The lake Ellen Kimberlite is popular with rock hounds as the classic indicator minerals ( pyrope, magnesian ilmenite and chrome diopside ) for kimberlite are easily found in the material, though few are of gem quality and size.
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These minerals such as chromium diopside ( a pyroxene ), chromium spinels, magnesian ilmenite, and pyrope garnets rich in chromium, are generally absent from most other igneous rocks, making them particularly useful as indicators for kimberlites.
