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?Factory Price of? Natural?Tourmaline Granules For Industrial Uses??
1. Specifications :
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Tourmaline?rough:?1cm?below,?1-2cm,?2-5cm,?5cm?above
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Tourmaline?particle:?1-4mm,?3-5mm,?5-8mm,?10-30mesh,?30-60mesh
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Tourmaline?ceramsite:?1-2mm,?2-5mm,?5-8mm,?15mm,?18-20mm,?25mm?
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2.Typical?physical?properties:
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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? ? |
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3.??Applications:
?Colour and lustre is gorgeous, transparency, good tourmaline commonly used as a gemstone, also is our common tourmaline jewelry.To be processed into gems or bad quality of tourmaline, often because of its good piezoelectric, used for determination of air piezoelectric or wavelength of radio industry regulator, the polaroid polariscope.
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. |
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