Crystal minerals are a very large family. They are widely distributed and diverse, and they are a very important member of the gemstone world. Among the many family members, there are many familiar gems, such as: hibiscus stone, strawberry crystal, titanium crystal, hair crystal and so on. Today I want to introduce you to a very magical crystal type - Yan Jing .
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The English name for the smoke crystal is Smoky Quartz, which is a variant of crystal. It belongs to the quartz stone family, and most of its physicochemical properties are the same as ordinary crystal. It has a refractive index of 1.544-1.553, a Mohs hardness of 7, and a relative density of 2.66 g without cubic centimeters. It belongs to the hexagonal system and its main component is silica.
The most famous place of the smoky quartz is the Cairngorm Mountain in Scotland, so it is also called Cairngorm, which is also the representative stone of Scotland. In addition, the origin of the smoky quartz is Brazil, the United States, Africa and other smog crystals are the most important feature is its color, its most common color is brown and gray black, in addition to smoky gray, yellow, yellow brown, brown varieties .
The color of the smoky quartz has always been mysterious, but according to the research results, experts and scholars believe that it should be related to the chemical element aluminum and trace radiation. In China, it is also called smoky yellow, brown smoky quartz crystal, because its color is very similar to the color of tea soup.
There is also a very special variety of smoky quartz, which is called Phantom Quartz. The crystal of this crystal contains chlorite, smoke crystal itself or other minerals such as white crystal. The reason is smoke crystal. When the crystal grows, the external environment changes to block or stop the growth of the crystal. When the crystal returns to growth again, it will change the original growth direction, so that the crystal appears as two individual crystals inside and outside, looking like a phantom, Ghostly, it is also named "Phantom of the Crystal".
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