5、 What is Dushan Jade?
Dushan Jade gets its name from Dushan, 8 kilometers northeast of Nanyang City, Henan Province. Its mineral composition is zoisitized plagioclase, which belongs to multi-color jade. It is bright in color, complete in patterns, both rich and weak, and fine in texture, dense and hard. Mohs hardness 6-6.5, specific gravity 2.9; Glass luster or grease luster, opaque or slightly transparent. Dushan jade is commonly used in the market as jade carving for various ornaments.
6、 What is agate?
Agate refers to chalcedony with banded structure. It is a colloidal mineral, and its main component is silicon dioxide. The hardness is 6.5-7, the specific gravity is 2.65, the fracture is shell shaped, transparent to translucent, and glassy. Agate with pure quality should be white, because it contains colored ions or other impurities, it will appear gray, red, blue and other colors. Natural red agate is “burned red”, and heat treatment can turn light red agate into bright red. It can also dye high-quality white agate into various colors. In the agate market, it is often made into bracelets, as well as some small pendants and ornaments. Agate is mainly produced in Brazil, while China’s agate is mainly produced in Fuxin, Liaoning.
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