NEPHRITE VS JADEITE
Various characteristics can be identified between these two terms referred to as ‘jade’. First of all, nephrite is found in Canada, Russia, China, Taiwan, USA, New Zealand and others, whereas jadeite is only commercially found in Myanmar, with traces of deposits in Guatemala and USA. Secondly, nephrite colors range from white, yellow, light green to dark green, as well as black. Whereas jadeite displays almost all colors in different hues. In both minerals, the color is distributed throughout the stone in various ways. Evenly distributed colors in jade are classified as high-grade material. Both nephrite and jadeite often have veins, blemishes and streaks running through the stone, though these may not be always regarded as flaws. On the contrary, some of these patterns can be particularly valuable in its distinctiveness.
|Hardness (Moh’s Scale):||6.0 – 6.8||6.5 – 7.0|
|Specific Gravity:||2.90 – 3.10||3.24 – 3.43|
|Colours Available:||White, Light-Green to Dark-Green, Black||White, Pale-Green to Deep-Green, Blue, Lavender, Pink|
|Sources:||Canada, China, USA, Russia, New Zealand, Taiwan||Myanmar, Guatemala, USA|
Physical characteristics and composition are also the determining factor in the different stones. Nephrite is a microcrystalline interlocking fibrous matrix of calcium, magnesium-iron rich amphibole mineral of the series tremolite-actinolite. Nephrite ranks 6.0 – 6.8 on Moh’s Hardness scale with a specific gravity of ~2.95. On the contrary, jadeite is a pyroxene mineral with a hardness of 6.5 – 7.0 with a specific gravity of 3.24 – 3.43. It is notable to mention that nephrite is the toughest natural stone in the world.