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Diamonds May Be Hard, But Jade Is The World’s Toughest Natural Mineral
The greener jadeite is highly valued in China ... The ethics of gemstone mining has made global news across all kind of ...
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World's rarest gemstone: What it looks like and its cost
It is worth noting that Myanmar is a site for many rare mineral discoveries. For example, jadeite is the hardest natural mineral, and painite is the second-rarest mineral in the world. The rarest ...