Not until the mid 19th century did we know that there are really two similar, yet different, minerals that are both considered jade. As a result, they are now classified as jadeite, which is sodium aluminum silicate, and nephrite, which is calcium magnesium iron silicate. The jadeite variety is the most valuable and therefore more expensive.
Many cultures have a gemstone that they consider to be most precious and, in the case of the Chinese, even heavenly. Jade is more valuable than gold in the Chinese culture and it is evident in how they use it in their daily lives. One emperor chose to be buried in a suit made of the lustrous green stone to protect his body from decay.
What exactly is this mystical green stone?
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