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    • Shijiazhuang Kedahua Imp. & Exp. Trade Co., Ltd. Follow
      • Vermiculite,Mica,Vermiculite Board,Perlite,Tourmaline
      Floor 19, Ximeiwuzhou Building, Huai'an East Road, Yuhua District, Shijiazhuang, Hebei, China (Mainland)
      Totally has 1 empolyees in Tradesns

    Paraiba tourmaline
    Follow
    • Brand Name：
      KDH
    • Place of Origin：
      Inner Mongolia, China (Mainland)
    • Model Number：
      KDH1411182
    • Gemstone Type：
      Mineral Gemstones
    • Gemstone Color：
      red and green
    • Gemstone Material：
      tourmline
    • Gemstone Shape：
      Round Brilliant Cut
    • Gemstone Size：
      Iregular
    • Gemstone Weight：
      All kinds
    • Treatments Applied：
      rough material
    • Optical Special Effects：
      Cat's Eye
    • Deliverability： 1000 Ton/Tons per Month
    • Port： Tianjin
    • US $ 5-10/Kilogram（Minimal Quantities 100Kilogram）
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    Shijiazhuang Kedahua Imp. & Exp. Trade Co., Ltd.
    China Hebei Shijiazhuang
    Manufacturer,Trading Company
    11 - 50 People
    Export Model:Have Own Export License
    Export Identification:Alibaba.com certificated suppler certificate
    Main Products:Vermiculite,Mica,Vermiculite Board,Perlite,Tourmaline
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    US $ 40-57
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    US $ 120-800
    Open cell and closed cell expanded perlite manufacturers
    US $ 38-55
    Bulk raw crushed perlite ore
    US $ 130-200
    Iron Oxide Blue
    US $ 800-920
    Sell perlite expanded open cell and closed cell
    US $ 38-55
    Raw Vermiculite gold
    US $ 40-55
    Expanded horticultural perlite for sale
    US $ 38-46
    Iron Oxide Purple
    US $ 800-920
    1.5-2.5mm Golden Agricultural Vermiculite Expanding Times7.5 Times
    US $ 70-180
    Natural Varicoloured Mica
    US $ 120-800
    Talc powder for paint applications
    US $ 110-350
    Apa Itu Perlite
    US $ 30-50
    Aquaponics Perlite
    US $ 30-50
    1.5-3.5mm high expanding ratios golden crude vermiculite
    US $ 70-120
    Vermiculit
    US $ 70-180
    Adding Perlite to Garden Soil
    US $ 30-50
    perlite filter aid for carrageenan
    US $ 100-320
    raw perlite,unexpanded perlite ore
    US $ 75-200
    • Products Description
    • Review List
      Quick Details
    • Brand Name：
      KDH
    • Place of Origin：
      Inner Mongolia, China (Mainland)
    • Model Number：
      KDH1411182
    • Gemstone Type：
      Mineral Gemstones
    • Gemstone Color：
      red and green
    • Gemstone Material：
      tourmline
    • Gemstone Shape：
      Round Brilliant Cut
    • Gemstone Size：
      Iregular
    • Gemstone Weight：
      All kinds
    • Treatments Applied：
      rough material
    • Optical Special Effects：
      Cat's Eye

    Specifications

    1.Natural tourmaline stone
    2.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
    Green Tourmaline: Strong; dark green, yellow-green
    Brown Tourmaline: Definite; dark brown, light brown
    Blue Tourmaline: Strong; dark blue, light blue

    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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