Editing Garnet (section)

====Pyrope====
Pyrope (from the Greek ''pyrōpós'' meaning "firelike")<ref name="Klein-1993" /> is red in color and chemically an aluminium [[silicate]] with the formula Mg<sub>3</sub>Al<sub>2</sub>(SiO<sub>4</sub>)<sub>3</sub>, though the magnesium can be replaced in part by calcium and ferrous iron. The color of pyrope varies from deep red to black. Pyrope and spessartine gemstones have been recovered from the Sloan diamondiferous [[kimberlite]]s in [[Colorado]], from the Bishop Conglomerate and in a [[Tertiary|Tertiary age]] [[lamprophyre]] at Cedar Mountain in [[Wyoming]].<ref>{{cite book|last=Hausel|first=W. Dan|title=Gemstones and Other Unique Rocks and Minerals of Wyoming – Field Guide for Collectors|year=2000|publisher=Wyoming Geological Survey|location=Laramie, Wyoming|pages=268 p}}</ref>

A variety of pyrope from [[Macon County, North Carolina|Macon County]], [[North Carolina]] is a violet-red shade and has been called ''rhodolite'', Greek for "rose". In chemical composition it may be considered as essentially an isomorphous mixture of pyrope and almandine, in the proportion of two parts pyrope to one part almandine.<ref name="schlegel">{{cite journal |last1=Schlegel |first1=Dorothy M. |title=Gem stones of the United States |journal=U.S. Geological Survey Bulletin |date=1957 |volume=1042-G |page=203 |doi=10.3133/b1042G|doi-access=free |bibcode=1957usgs.rept....3S }}</ref> Pyrope has tradenames some of which are [[misnomer]]s; ''Cape ruby'', ''Arizona ruby'', ''California ruby'', ''Rocky Mountain ruby'', and ''Bohemian ruby'' from the [[Czech Republic]].<ref name="lytvynov"/>

[[Pyrope]] is an indicator mineral for high-pressure rocks. [[Earth's mantle|Mantle]]-derived rocks ([[peridotite]]s and [[eclogite]]s) commonly contain a pyrope variety.{{sfn|Klein|Hurlbut|1993|pp=453, 587–588}}