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NATURE'S MOST TOXIC ROCKS
How It Works UK
|Issue 202
Why these sparkling crystalline minerals are among the most hazardous rocks in nature
1 DRAGON'S BLOOD
Chemical composition: HgS Toxic element: Mercury
Derived from the Arabic word 'zinjafr', meaning 'dragon's blood', cinnabar is a bright-red mineral that is found in the fractures of volcanic rock. In traditional Chinese medicine, cinnabar is used as a sedative for medicinal procedures.
However, its toxic mercury content can cause more harm than good.
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