Semi precious stones.Extraction and marketing
Gemstones.
Ruby, sapphire, emerald, spinel, tourmaline, opal, aquamarine, chrysoberyl, alexandrite, cats eye, zircon, garnet, hessonite garnet, amethyst, tanzanite, green garnet (savourite), peridot, quartz, beryls, green beryl.
Conch pearls
Jadeite Jade..