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21.50 CTS RARE PINK TANZANITE SPECIMEN [ZOISITE] [S7570 ]

Artikelnummer
Abmessungen (mm)
17.000 x 15.000 x 10.000mm
Gewicht (cts)
21.500
Typ
Specimen
Farben

MEMBER OF iNTERNATIONAL COLOURED ASSOCIATION COMMITED TO FULL DISCLOSURE OF STONES WITH A MONEY BACK GUARANTEE.

 PINK TANZANITE SPECIMEN.

This is a  natural specimen  of rare pink Tanzanite which i bought when i was at the Arusha gem show in Tanzania .This colour is very rare and clean facetetd stones sell over 2000 per carat.This is a great specimen for any collection.

Weight 21.50 cts app

size 17X15X10 mm app

 

 

Tanzanite is an extraordinary gemstone. It occurs in only one place worldwide -Tanzair africa. Its blue, surrounded by a fine hint of purple, is a wonderful colour. It is also found in a varitey of colours uncluding green and the rare pink colour.Thanks to its unusual aura and the help of the New York jeweller's Tiffany, it has rapidly become one of the most coveted gemstones in the world.

Tanzanite is a blue variety of the gemstone zoisite. It consists of calcium aluminium silicate and is not particularly hard, having a value of 6.5 to 7 on the Mohs scale. For that reason, it should always be worn carefully and never placed in an ultrasonic bath for cleaning or brought into contact with acids.

The deep blue of the tanzanite is fantastic, and runs from ultramarine blue to light violet-blue. The most coveted colour is a blue surrounded by a delicate hint of purple, which has a particularly wonderful effect in sizes of over 10 carats. The well developed polychromaticity of the tanzanite is typical: depending on the angle from which you look at it, the stone may appear blue, purple or brownish-yellow. Having said that, most raw crystals are somewhat spoiled by a brownish-yellow component, though it can be made to disappear by the cutter if he heats the stone carefully in an oven to approximately 500°. During the procedure he must pay careful attention to the moment at which the colour turns to blue. This burning is a method of treatment which is regarded as customary in the trade, but the raw stones must be as free of inclusions as possible, since otherwise fissures may occur. In fact working with tanzanite can sometimes give even the most experienced cutter a bit of a headache, the cleavage of this gemstone being very pronounced in one direction. This exclusive gemstone is cut in every imaginable shape from the classical round shape to a number of imaginative designer cuts.

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Rest der Welt
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Rest der Welt
Registered Shipping erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $16.00

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  • royrock
    royrock
    Positiv

    Beautiful agate piece , and as always fast efficient service from Sedagems

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Dieses Produkt wurde von einem Gemstone Sheriff geprüft und es wurde Folgendes festgestellt:
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The Verified Seller has provided accurate and complete information for this item including weight, dimensions and treatment

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Versand:
$16.00 :Tage zählen über Registered Shipping
Schiffe von:
Australia

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Auflistungstyp : Standard
Produkt ID : 1019530
Beginnt : 8th November 2024 08:10 pm PST
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