Gemstones: Facts, photos, information for 100+ gems - GeologyTumbled Stones Tumbled Stones are rocks that have been rounded, smoothed . Star Garnets are found in only a few locations worldwide. . Bloodstone Bloodstone is a dark green jasper with a splatter of red color that looks like blood. . Diamonds Do Not Form From Coal Learn several reasons why the coal origin is false.stones like garnet coal,Garnet - WikipediaGarnets are a group of silicate minerals that have been used since the Bronze Age as . The term "carbuncle" is derived from the Latin meaning "live coal" or burning . The color of these blue garnets is not like sapphire blue in subdued daylight but . Other shades include cinnamon brown (cinnamon stone variety), red, and.
stones like garnet coal