Purchase Qty. Reference FOB Price
5-499 kg US$4.00
500-4,999 kg US$3.50
5,000-9,999 kg US$3.00
10,000+ kg US$2.50
Product Description
Product Description Tourmaline (Tourmaline), also known as tourmaline, is the general name of tourmaline group minerals, the chemical composition is more complex, is characterized by boron containing aluminum, sodium, iron, magnesium, lithium ring structure silicate minerals, is one of the typical ...