A Comparison between Jade and other Similar Precious Stones

There are many precious stones that are similar to jade but with quite different values. Sometime sellers might cheat you by selling these similar stones instead of real jade. The following is a comparison table: Name Hardness Density (g/cm3) Color Refractive Index Other Features Jadeite 6.5-7 3.34 Green, emerald green, white, red 1.66-1.68 Green color under Chelsea colour filter; absorption band in red and purple zone Nephrite 6-6.5 2.95 White, yellow, olivine, dark green, black, etc. 1.606-1.632,often 1.621 No response under Chelsea colour filter. Chalcedony 6.5-7 2.60 Green, light green, red, blue, milk white, etc. 1.535-1.539 Green color under Chelsea colour filter; absorption band in...

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