The identification method of the crystal
Qingdao handicrafts made small make up today to teach everyone how to identify the artificial and natural crystal, crystal crystal handicraft identification here is it:
(see: natural crystal in the process of formation, is often affected by the environment there will always be some impurities, observation of the sun, you can see the light evenly tiny horizontal stripes or catkin substance. And false crystal with defective crystal, glass melting slag, after polishing processing, coloring imitation, no catkin stripes, material.
(2) the tongue lick: even in the hot summer dog days, natural crystal surface with his tongue, cold, cool feeling, too. Fake crystal,, no cool feeling.
(3) lighting: natural crystal stand in the sun, no matter from which point of view, it can let out a beautiful light. Fake crystal cannot do.
(4) hardness: natural crystal hardness, gently with gravel on the accessories, dont leave a trace; If have stripes, is artificial crystal.
(5) with a polariscope check: turn 360 degrees under polarizer siming four dark change is natural crystal, no change is artificial crystal.
Those with two color check: natural amethyst dichroism, fake crystal no dichroism.
7) with a magnifying glass check: with ten times the magnifying glass check in transmitted light, can find basically can be classified as false crystal of bubbles.
End up with hair check: crystal on a human hair, double the eye through the crystal can see a human hair, natural crystal, mainly because of crystal birefringence.
Pet-name ruby with thermal conductivity meter detection: thermal conductivity meter to adjust to the green 4 g test gem, natural crystal can rise to yellow 2, whereas false crystal does not rise, when the area is large to rise to the yellow one.
