black rough tourmaline crystals natural schorl tourmaline stone
USD $3 - $15 /Kilogram
Min.Order:10 Kilograms
Lingshou County Zhongrun Minerals Co., Ltd.
Tourmaline rough: 1cm below, 1-2cm, 2-5cm, 5cm above
Tourmaline particle: 1-4mm, 3-5mm, 5-8mm, 10-30mesh, 30-60mesh
Tourmaline powder: 80mesh, 100mesh, 200mesh, 325mesh, 500mesh, 800mesh, 1200mesh, 1500mesh, 2000mesh, 3000mesh, 4000mesh, 8000mesh
Tourmaline ceramsite: 1-2mm, 2-5mm, 5-8mm, 15mm, 18-20mm, 25mm
definition | 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. | |||||
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 |
Chemical composition | Si2O3,Fe2O3,MgO,CaO,K2O,Na2O,TiO2,P2O5,MnO,K,Na,Ca, Mg,Cu,Mo etc. | |||||
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 | |||||
feature | ·producing anion ·electrolysis of water ·narrowing the beam of water molecules ·radiating far infrared ·containing effective trace minerals | |||||
Healthcare function | ·repairing the spine ·activating the cells ·purifying the blood ·promoting metabolism, purifying the body fluid and improving the inernal environment of the human body ·adjusting the autonomic nerve ·adjusting the incretion ·enhancing the human immunity ·eliminating the free radicals ·bodycare & facial treatment | |||||
application | Widely used in environmental protection, electronics, daily use chemicals, textiles, ceramics, buildings, drinking water activation, sewage treatment, air purification, healthcare products etc. | |||||
packing | 25kg/bag or as per client’s request |
25kg,50kg/bag or as customer's requirment
Delivery:1*20'GP:in 7 days after receiving deposit