Indien (Indien): India is one of the world’s major gem suppliers, rich in diamonds, safirer, beryl, cordierite, golden emeralds, rubies, various garnets, amethysts, olivines, spinels, and electrical Stone, topaz and opal. Porslin: China is a pearl supplier, and is rich in high-quality olivine, nephrite and sapphire. It also produces aquamarine, tourmaline, garnet, slabstone, turquoise and […]
