Purchase Qty. Reference FOB Price
500-1,999 kg US$5.00
2,000-9,999 kg US$4.50
10,000-19,999 kg US$4.00
20,000-49,999 kg US$3.50
50,000+ kg US$3.00
Product Description
Product Description Tourmaline is the general name of tourmaline group minerals.It is a silicate mineral. The hardness of tourmaline is usually 7-7.5. Tourmaline powder is the powder obtained by mechanical grinding after removing impurities from the original tourmaline ore. Tourmaline powder is of ...