Quartz and amethyst are frequently observed weathered from this stone, in addition to other a variety of sorts of silica for example agate. It’s much less an indication of gold, plus more of the stone that will bear it underneath the ideal disorders.Hô h?p, xoang C? x??ng kh?p Ti?u ???ng Gan m?t Th?o d??c và th?c ph?mThese very small gold parti