almandine

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Related to Almandine garnet: Pyrope garnet

almandine

[′al·mən‚dēn]
(mineralogy)
Fe3 Al2(SiO4)3 A variety of garnet, deep red to brownish red, found in igneous and metamorphic rocks in many parts of world; used as a gemstone and an abrasive. Also known as almandite.
References in periodicals archive ?
The purpose of this study is to thoroughly describe the tectonic fabric of large (1-3 cm dia.), zoned, helicitic, calcium-rich almandine garnets from the Hyde School Marginal Mylonite of the Adirondack Lowlands and to date (U-Pb) monazite inclusions in the cores and rims to verify the hypothesis that there were two episodes of garnet growth, currently based upon textural observations, chemical zoning, and geothermometry.