garnet

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Introduction

A brittle, more or less transparent, usually red silicate mineral with a vitreous luster. It occurs many in crystals, but also in massive forms & in grains. It is found commonly in gneis & micca schist. Garnet is used as a semiprecious stone & as an abrasive.

Hardness: 6.5-7.5.

Sp Gr. 3.15-4.3.

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References

  1. Webster's Ninth New Collegiate Dictionary, Miriam- Webster Inc. Springfield, MA 1983.