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Black Tourmaline Applicable for High Industry
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Product Details
| Brand Name | KDH | Place of Origin | Inner Mongolia, China | |
| Model Number | KDH1412010 | Gemstone Type | Mineral Gemstones | |
| Gemstone Color | green | Gemstone Material | Other, tourmline | |
| Gemstone Shape | Round Brilliant Cut | Gemstone Size | Iregular | |
| Gemstone Weight | All kinds | Treatments Applied | Other, rough material | |
| Optical Special Effects | Other, Cat's Eye |
Product Description
Specifications
1.Uncut rough raw tourmaline stone2.Delivery:10-15days.
3.Purity:more than 98%
4.Size:0-10cm.
5.Also powder
1.Tourmaline Sizes:
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
2.Typical chemical analysis:
element | Percent by weight (%) |
SiO2 | 37.05 |
Al2O3 | 29.8 |
MgO | 8.05 |
CaO | 1.18 |
K2O | 0.09 |
FeO | 8.33 |
NaO2 | 1.19 |
Cr2O3 | 0.22 |
B2O3 | 10.16 |
TiO2 | 0.44 |
3.Typical chemical formula:
(Ca,K,Na,[])(Al,Fe,Li,Mg,Mn)3(Al,Cr, Fe,V)6(BO3)3(Si,Al,B)6O18(OH,F)4
4.Typical physical properties:
Density | 2.82-3.32 |
Hardness | 7-7.5 |
Crystal habit | Parallel and elongated. Acicular prisms, sometimes radiating. Massive. Scattered grains (in granite) |
Crystal system | Trigonal |
Cleavage | Indistinct |
Fracture | Uneven, small conchoidal, brittle |
Luster | Vitreous, sometimes resinous |
Streak | White |
Specific gravity | 3.06 (+.20 -.06) |
Polish luster | Vitreous |
Optical properties | Double refractive, uniaxial negative |
Refractive index | nω=1.635–1.675, nε=1.610–1.650 |
Birefringence | -0.018 to -0.040; typically about .020 but in dark stones it may reach .040 |
Pleochroism | typically moderate to strong Red Tourmaline: Definite; dark red,light red |
Dispersion | .017 |
Ultraviolet | pink stones—inert to very weak |
Fluorescence | red to violet in long and short wave |
Absorption spectra | a strong narrow band at 498 nm, and almost complete absorption of red down to 640nm in blue and green stones; red and pink stones show lines at 458 and 451nm as well as a broad band in the green spectrum |
5.Applications:
1. High pure tourmaline is the bijou that can be made into jewelry such as necklace bracelet and so on. |
2. It can be used in deodorizing wall paper, floorboard, ceiling board furniture inner wall coasting material and concrete. |
3. Packing material with the function of antibacterial and fresh keeping. |
4. The healthy filling of cigarette filter tip. |
5. Purification materials for water and air. |
6. Additive of toothpaste and cosmetic |
7. Antibacterial coating and is use in electronic equipment and house hold electric. |
8. Made composite ceramic with the function of antibacterial sterilization and deodorization. |
Alibaba Certificate:
Tel:86 13722996216
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- Shijiazhuang Kedahua Imp. & Exp. Trade Co., Ltd.
- Contact nameXueyan Bai Chat Now
- Phone86-311-89687086
- AddressNo.345 Youyi North Street, Xinhua District, Shijiazhuang, Hebei
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