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Bulgarian minerals and 25 new tumblestone types and 37 more boxes with beautiful shells at great prices and lava-statues 70% discount

 

 

 

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Rock crystal with Kyanite pendant (gold) of our own brand Prestige.

Hanger bergkristal en Kyaniet 2018_product

Rock crystal with Kyanite pendant (gold) of our own brand Prestige.

Product

Rock crystal with Kyanite pendant (gold) of our own brand Prestige.

Description

The best is not good enough for the Prestige people. The most beautiful, because the most beautiful stones are selected with great care and then gilt with 22 carat gold and 800/1000 silvered.

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More information

Rock crystal is colorless and most common variant of the mineral quartz (silicon dioxide, SiO2) The name "crystal" derives from the Greek word "Krustallos" which means ice. It was believed that rock crystal was designed by the gods ice. At the time of the Mesolithic was known rhinestone al. During Roman times from the Alps under the name "petrified ice" on the market. Theofratus called it "krystallos". Also Pliny the Elder mentions it. The name "Quartz" was introduced in 1529 by Georgius Agricola. The peoples of the East considered rock crystal and stone of patience and perfection. Tibetans use crystal to crystal to behandelen.De wounds choice as a drinking glass or as part of medieval jewelry can be attributed to the belief that these crystals would crack or discolor when they came in contact with poison So the chain was a amuletdat protecting the king compare Rudolfinische imperial crown and the chain of the Jehovah-order Genesis:... Megnatieten, pegmatites, hydrothermal and alpine stone veins, alluvial deposits Appearance:. Rock crystal is naturally widespread, but not always in gemstone quality Historically known sites are India and Sri Lanka (near Tatnaputi) Iridescent quartz from the area of ​​Poona in India and out.. Myanmar is a rarity. Beautiful crystals come from Kenya and Madagascar, also from Brazil (Minas Gerais), Goisas, Bahia and French Guiana. In the US, Rhinestone for in pegmatites, including in Maine (in Ausburn, New York, North Carolina, Arkansas (Crystal Peak) and California. Of particular significance are occurrences in the Alps. Rhinestones are found in Switzerland (eg Urim where a crystal of 135 kg has been found in the area of ​​the St. Gotthard and Grimsel), in Austria (in 1965 at the Grossglockner found a crystal of nearly 1,000 kg in a cavity). Rhinestones are also found in Germany, the Czech Republic Poland and France in the collections of several museums are unique faceted rhinestones The Smithsonian Institution Washington has a polished stone of 7000 kt and a rock crystal sphere with a diameter of 33 cm and a weight of 48.5 kg.. it comes out Burma and was cut in China.

The mineral kyanite is an aluminum silicate having the chemical formula Al2SiO5. It belongs to the group of nesosilicates. Blue, gray, white, green or black mineral has perfect cleavage according to the crystal surface [100], a white stripe coloring and a glass for pearl luster. The crystal system is triclinic, the average density is 3.61 and the hardness is from 4 to 7. Kyanite is neither magnetic nor radioactive. The name of the mineral kyanite is derived from the Greek word Kyanos that "blue" means. Kyanite mineral is a very common as a part of many rocks. It is partly for in metamorphosed sedimentary rocks. It is also, along with the other aluminum silicates, sillimanite and andalusite a mineral indicative for the depth and temperature at which a rock has undergone transformation. Kyanite is usually stable at temperatures below 650 ° Celsius and at pressures higher than 0.3 GPa (giga pascal). The pressure and temperature are related so that at high pressure (0.6 GPa) has a higher temperature (600 ° C) is necessary to be formed from kyanite sillimanite. At pressures below 0.3 GPa is correct andalusite stable aluminum. Kyanites of gem quality are found in India, in the gemstone marketing creations in Myanmar and Korea. In the United States are kyanieten recovered in California, Tennessee, Georgia, New Hampshire, and North Carolina. Africa comes to kyanite in Kenya, Tanzania, in Europe in Russia, Switzerland, Austria and France. Kyanite occurs in the sand fraction of Dutch Quaternary river sediments. In the heavy-mineral analysis as in the Netherlands at the Geological Survey took place during the second half of the twentieth century, the mineral is assigned to the so-called stable group. In this study used only the name dist go.

STRONG TRADEMARKS TIMMERSGEMS GROUP