Any of a group of hard glassy minerals (silicates of various metals) used as gemstones and as an abrasive.
Group of silicate minerals with the formula X3Y2(SiO4)3 , when X is calcium, magnesium, iron, or manganese, and Y is iron, aluminum, or chromium. Garnets are used as semiprecious gems (usually pink to deep red) and as abrasives.
They occur in metamorphic rocks such as gneiss and schist.
Veoma rasprostranjen mineral, velike tvrdoće, lepog staklastoj sjaja, crvenkast; ima ga više varijeteta.