The so-called almandine garnets of the jeweler are frequently of the almandite class and tend to purplish red.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

These had a composition between almandite and pyrope, that is, they had both magnesium and iron with aluminum and silica.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

Brazil, from its prolific gem gravels at Minas Novas, supplies good almandite, and smaller quantities are found in many different localities.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference

These are all silicates, the almandite garnets being silicates of iron and aluminum; the pyrope garnets are silicates of magnesium and aluminum; the hessonite garnets, silicates of calcium and aluminum, and the andradite garnets, silicates of calcium and iron.    From Wordnik.com.  [A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public] Reference