SPARKLING FUCHSITE-KYANITE CABOCHON RUSSIA

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SPARKLING FUCHSITE-KYANITE CABOCHON RUSSIA Nice polished VERY BRIGHT AND SPARKLING CABOCHON of the FUCHSITE WITH KYANITE It is found in one location Kola Peninsula, Northern Russia 1 side is polished SIZE 36x36x8 mm WEIGHT 18 gram Some white patches are effect of flashing. Fuchsite is a dark green variety of muscovite. It has an emerald green color that can have a beautiful sparkly shine if the crystals are small. The green color is the result of chromium impurities. Muscovite, also known as potash mica, is a phyllosilicate mineral of aluminium and potassium with formula: KAl 2(AlSi 3O 10 )(F,OH) 2. It has a highly perfect basal cleavage yielding remarkably thin laminae (sheets), which are often highly elastic. Muscovite has a Mohs hardness of 2 - 2.25 and a specific gravity of 2.76 - 3. It can be colorless or tinted through grays, browns, greens, yellows, or rarely violet or red, and can be transparent or translucent. The green chromium rich variety is called Fuchsite . Muscovite is the most common mica, found in granites, pegmatites, gneisses and schists, and as a contact metamorphic rock or as a secondary mineral resulting from the alteration of topaz, feldspar, kyanite, etc. In pegmatites, it is often found in immense sheets that are commercially valuable. Muscovite is in demand for the manufacture of fireproofing and insulating materials and to some extent as a lubricant. KYANITE (DISTEN), a mineral, silicate of aluminium, Al2SiO5. The name of this mineral has taken place from grech. "kianos" - dark blue, blue. Color usually blue, less often pale-green or white. Has the same structure, that andaluzite and sillimanite, but other crystal structure. As against these minerals, kyanite meets as the extended lamellar crystals with accomplished spajnostju in one direction parallel to lengthening.Hardness 5 (it is scratched by a knife) in a direction of lengthening of a plate and 7 (is not scratched by a knife) in a perpendicular direction (whence his synonym disten, i.e. " double durability "). Density 3,5. It is applied to manufacturing high-strength fire-resistant and kislotoustojchivyh materials, and also for manufacture of aluminium-silicon alloys of type siluminov. The main suppliers industrial kyanits - India and the USA (states of Georgias, Virginia and South Carolina).In Russia the big stocks kyanits are known on Kola peninsula and in Urals Mountains. SH&H TO WORLDWIDE : We combine shipping of the items bought within one week and than we send them from Finland on Monday or Tueasday (Once a week!) . We need time to pack the parcels, so, pay not later Saturday. Otherwise we will send the parcel a week later. To calculate the total shipping price of 1 or several items look at the price list or send us an email and we will send a Paypal invoice with the correct shipping amount THE PRICE LIST OF THE SH&H TO WORLDWIDE (PRIORITY AIR MAIL): (The prices are real. We do not earn money for transfer) WEIGHT EUROPE (flat box) OTHER COUNTRIES (flat box) EUROPE (large box) OTHER COUNTRIES (large box) Up to 100 gram 4 6 6 8 101-250 gram 6 9 9 12 251-500 gram 9 15 15 22 gram 14 25 25 36 1001-2000 gram 22 39 39 59 2001-3000 gram - - 59 79 3001-4000 gram - - 75 99 It is possible to send the heavy parcels (>1 kg) by the economy (SLOW) mail: WEIGHT EUROPE OTHER COUNTRIES 1001-2003 g 25 36 2001-3000 g 39 59 3001-4000 g 59 79 The weight of the item in bulk you may see in the description. The weight of the packaging we pay ourselves. So, easy calcu... read more

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