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A high percentage of stones appear to exceed 3/8" slightly
These polished BLACK OBSIDIAN stones are a black volcanic glass with some patterns of light gray
this one is the best in the entire lot
GARNET STAR Idaho state gemstone - Large rough garnets, 66-140 grams Lot:D collectionsIDAHO STAR GARNET Star Garnets are more rare than either Star Rubies or Star Sapphires. Normally the star in the Idaho Garnet has four rays, but occasionally one has six. The stars will not be evident until the garnet is cut. The color is usually dark purple or plum and the star seems to glide or float across the dark surface. The star is caused by intrusions of the mineral rutile. There are numerous variety of garnet in colors from red to green.