identify stones rock minerals help mineral stone gemstones gemstone help-identify identification question green quartz rocks crystal crystals blue agate unknown identify-unknown-mineral black rough banded broncoboss turquoise diamond purple identifying gold silver emerald #help-identify value red white amethyst clear jasper ore orange aquamarine sapphire heavy calcite malachite opal metallic mystery metal ruby inclusions brown corundum copper translucent gem chalcedony or and stones-gemstones-identify-help galena jade opaque topaz sell meteorite water citrine gems fluorite garnet pink beautiful emeralds color in #stone mineral-silvery mysteryrock fordite identifyagatestone arsenic moonstone platinum weird lapis chemical fire pyrite colorchange marble smooth agates shiny gypsum selenite tourmaline slag beach