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Smoky quartz, a mineral from the quartz group.
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Quartz is the most common mineral. It comes in a wide variety of colors, shapes and varieties. Pure colorless quartz is referred to as a rock crystal.
In ancient times it was already a well-known and valued mineral, its name come from the Greek word 'krustallos' meaning ice. The Greeks and Romans believed that quartz was an ice that did not melt because it was created by the gods.
Quartz occurs in nature in very diversified forms, ranging from perfectly formed crystals to fine-grained and compact clusters. The most magnificent quartz crystals are found mainly in rock void among coarse-grained granites, in pegmatites, in some ore veins and in crystalline shales. Quartz is the most abundant mineral in the earth's crust and accounts for over 12% of its composition.
Some trasparent types of quartz have very interesting inclusions containing other minerals, which increase the value of the jewelery. These are, for example, green chlorite flakes, actinolite needles, tourmaline or brown rutile.
The perfection of shapes and the splendor of colors made it a more and more sought-after decorative stone. Many varieties of quartz are used to make beautiful jewelry, figurines, cameos or decorative elements, such as clocks.
Currently, the richest deposits of quartz crystals are in Madagascar and Brazil.
Smoky quartz is one of the few precious stones with a brown color. Like other types of quartz, also this quartz has been valued since ancient times for ease with which it can be jewelery processed.
Smoky quartz creates dark brown or brown-black crystal. Black, opaque varieties of smoky quartz are called morion.
Smoky quartz is found in many igneous and metamorphic scales, in particular in granites and gneisses.
Occurrences: Australia , Brazil, Canada, France, India, Madagascar, Germany, Poland, Russia, United States, Scotland, Switzerland.
Smoky quartz in astrology: Western astrologu links smoky quartz with the zodiac sign of: Libra, Scorpio, Capricorn.
Data sheet
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