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These are very nice specimens from a new find in Brazil. I will update the exact location soon. All specimens are 100% natural.
Smoky quartz is a grey, translucent variety of quartz. It ranges in clarity from almost complete transparency to a brownish-gray crystal that is almost opaque. Some can also be black. Like other quartz gems, it is a silicon dioxide crystal. The smoky colour results from free silicon, formed from the silicon dioxide by natural irradiation.
A very dark brown to black opaque variety is known as morion. Morion is the German, Danish, Spanish and Polish synonym for smoky quartz. The name is from a misreading of mormorion in Pliny the Elder. It has a density of 5.4.
|Smoky Quartz is an affordable gemstone, and it has become popular in jewelry. Since it is very common and often lacking flaws, small Smoky Quartz gemstones are rarely encountered. In fact, gemstones can reach several hundred carats with minimal flaws. The color of Smoky Quartz is thought to be caused by natural irradiation of Quartz. Citrine, the yellow to orange variety of Quartz, sometimes has a brownish tinge, and a stone can thus be borderlined between Citrine and Smoky Quartz.|