Nephrite and similar jade identification techniques Daquan

Now there are many businesses take some of the low-profile jade posing high-profile jade, small series today teach you to identify and nephrite and other similar jade difference, we should pay attention to!

1. White Jade (and Hetian): mineral composition is mainly through the flash stone, Yang stone, fiber interwoven structure, density 2.95, hardness 6-6.5. Crystal is small fiber, with a magnifying glass to observe, you can see the jade inside the mineral hair-like. This is the typical structural characteristics of Hetian jade. The overall appearance of the Jade oil luster, give people feel is warm.

2. Fine white marble commonly known as Afghanistan Jade: mineral composition for the very fine calcite, documents for billions of seasons, good gift music with mini ipad Mobile HDD Pat Baidu Schoolbag Specific Gravity 2.7, the hardness of about 3, the needle can be scratched, granular structure, texture than and jade loose, and sometimes can see obvious bedding structure, so polished surface for glass luster, color is generally pure white. In the market, often can see by the Afghan jade carving of cabbage, small pendants and so on.

3. Jade: Mineral composition for fine scale-like serpentine mineral, Mohs hardness of about 3, the needle can be scratched, density 2.57, when it does not contain fe2+, the color of the jade White, only through the hardness can be easily separated from jade.

4. Milky Glass: Standard glass luster, hardness, steel pin is not moving, the typical characteristic is the surface is very smooth, with the naked eye can see bubbles and flow pattern.

5. Fine white quartzite: mineral composition for quartz, jewelry polishing surface for glass luster, granular structure, density 2.65, hardness 7, steel needle is not moving.

Nephrite and similar jade identification techniques Daquan