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Product Description
1, Definitioin:
Tourmaline is a boron silicate crystal. It’s a jewel as well as a natural
drug ore which has healthcare function. We mainly process and supply
black tourmaline.
2, Physical property
| Transparency | Cleavage | Hardness | Specific gravity | Refraction | Birefraction |
Completely transparent or half-transparent | no | 7~8 | 3.06g/cm3 (+0.20,-0.60) | 1.624~1.644 | 0.018~0.040 |
3, Chemical composition
Si2O3,Fe2O3,MgO,CaO,K2O,Na2O,TiO2,P2O5,MnO,K,Na,Ca,Mg,Cu,Mo etc.
4, specification
| Tourmaline lump | 1cm below,1-2cm,2-5cm,5cm above |
| Tourmaline granule | 1-4mm,3-5mm,5-8mm,10-30mesh,30-60mesh |
| Tourmaline powder | 80,100,200,325,500,800,1200,1500,2000,3000,4000,8000mesh |
| Tourmaline ceramsite | 1-2mm,2-5mm,5-8mm,18-20mm,25mm |
5, Application
Widely used in environmental protection, electronics, daily use chemicals,textiles, ceramics, buildings, drinking water activation, sewage treatment, air purification, healthcare products etc.
Packaging & Shipping
25kg/bag or as per client’s request
Company Information
