Calcium aluminum garnet ShiYu
Sodium long ShiYu
Appearance features: head is poorer, slightly transparent to translucent. Green is mottled or banded. Hardness and feel similar with jade.
The most common on the market a fake jade jade. The personage inside course of study known as "water foam jade".

Flash ShiYu
Siliceous rock jade
Appearance features: head foot, translucent above. Grease to vitreous luster. Green is uniform. Pole and high-grade jade interblend.
Appearance features: color gray green, blue ribbon pattern, contains more impurity. Some head is better, for the translucent.

Black agate
Black has stable, grave, classical, charm, noble, mystery, represents the low-key, implicative and restrained trait.
Diamonds are the existing materials thermal conductivity in the fastest, if your CPU has a diamond do radiator, then... You must have been mad natural material