Orange and Brown Gemstones

TRANGSUCVN.COM 2014-06-15 552 lượt xem
Orange and Brown Gemstones

 

 

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Gemstone Crystal System Density Hardness Refractive index Treatments
agateAgate microcrystalline 2.66 6.5-7.0 1.544-1.553 dying
amberAmber amorphous 1.08 2.0-2.5 1.54 heating, oiling, reconstitution
carnelianChalcedony microcrystalline 2.66 7 1.544-1.553 dying
chrysoberylChrysoberyl orthorhombic 3.72 8.5 1.746-1.755 none
coralCoral trigonal 2.65 3.5-4.0 1.486-1.658 dying
diamondDiamond cubic 3.52 10 2.417 radiation, drilling, fracture filling
garnetGarnet cubic 3.40 5.5-6.5 1.700-1.746 none
jadeiteJadeite microcystalline 3.34 6.5-7.0 1.660-1.680 dying
opalOpal amorphous 2.15 5.0-6.5 1.450 fracture filling
spinelSpinel cubic 3.60 8 1.718 none
 
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