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DW031

Category:28
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Product Detail

Item name :crystal figurine

Material     :Top grade crystal

Size          :By your requirement

rdness: Natural crystal hardness, with a stone in jewelry lightly zoned , for no trace ; if left streak, is fake . 
(5 )Using polarized light microscopy: In the polarizing microscope, rotate 360 degrees , four out four dark change is a natural crystal jewelry , no change is false . 
(6 )Using two -color check: Natural amethyst with two color , leave no dichroism . 
(7 )With a magnifying glass examination: The times magnifying glass in transmitted light inspection, to find the bubble is basically as false. 
(8 )With hair check: The crystal ornaments on a hair , the human eye through the crystal to see hair double shadow , was natural, mainly because of its birefringence . 
(9 )Thermal conductivity detected: the thermal conductivity meter adjusted to the green 4 cell testing precious stones, natural crystals can be up to the yellow 2 cells , while the fake is not increased , when the area is large up to the yellow one compartment .

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