Quartz lumps
Men-wooden-watches-sports-quartz-waterproof
Colored gem stone, ruby, sapphire, emerald, spinel, tourmaline, opal, aquamarine, chrysoberyl, alexandrite, cats eye, zircon, garnet, hessanite garnet, amethyst, tanzanite, green garnet (savourite), peridot, quartz, beryls, green beryl