Group of related minerals, often used as gemstones or abrasives. Large quantities of garnets are ground up and made into a variety of sandpaper. Garnets crystallize in the isometric system, usually as rhombic dodecahedrons.
Garnet is a group of minerals that have been used since the Bronze Age as gemstones and abrasives. Garnets are most often seen in red, but are available in a wide variety of colors ...
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