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13.05 CTS FIERY CABOCHON SUNSTONE FROM TANZANIA [STS1160]

SKU
Afmetingen (mm)
15.000 x 9.300 x 4.800mm
Gewicht (cts)
13.050
Kleuren

SEDA GEMS

SUNSTONE STONE

 

This is a natural untreated stone from Tanzania Africa showing the firey flash it is known for.

Weight  cts app

Size    mm app

 Sunstone contains inclusions of copper crystals. Sunstone can be found as large as three inches across. The copper leads to varying color within some stones, where turning one stone will result in multiple colors. The more copper within the stone, the darker the complexion

Note -If you would like some  quality  rough material visit our sister site QUALITY ROUGH

Sunstone is a plagioclase feldspar, which when viewed from certain directions exhibits a brilliant spangled appearance; this has led to its use as a gemstone. It has been found in Southern Norway,tanzania and in some United States localities. It is the official gemstone of Oregon.

GRADING The first factor in grading is the amount of Schiller[a sub -surface iridescent shimmer]The more schiller the less the stone reflects and shimmers as it blocks suns rays.The next grade is for colour as it can be found in red ,green.yellow,pink and orange.

Sunstone with high amounts of schiller are great for carvings.

The optical effect appears to be due to reflections from enclosures of red haematite, in the form of minute scales, which are hexagonal, rhombic or irregular in shape, and are disposed parallel to the principal cleavage-plane. These enclosures give the stone an appearance something like that of aventurine,  whence sunstone is known also as “aventurine-feldspar.” The optical   effect called shiller and the color in Oregon Sunstone is due to copper.  In the middle part of this crystal, it sparks a lot, and usually has a   dark color in the middle, and the color becomes lighter as it becomes   the outer part.

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FedEx wordt verdisconteerd tot $39.00 bij bestellingen met 2 of meer artikelen
Registered Shipping $9.00 / :dagen dagen $16.00 / :dagen dagen
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Registered Shipping wordt verdisconteerd tot $9.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
Registered Shipping wordt verdisconteerd tot $16.00 bij bestellingen met 2 of meer artikelen

sedagems
Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and gems stones he has collected on his many buying trips world wide. All stock has a money back guarantee as your continued business is our business.
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Geverifieerd
18978e feedback

  • gemarab
    gemarab
    Positief

    Great and clear sapphire, beautiful cut ! Great packaging

  • js20031
    js20031
    Positief

    AAAA+++ Very Happy! Just like the pic.

  • js20031
    js20031
    Positief

    AAAA+++ Very Happy! Just like the pic.

Audit

Met het Gemstone Sheriff- programma kunnen onze leden een audit aanvragen voor elk product, die wordt uitgevoerd door een onafhankelijke Gemologist die de juistheid van de artikelbeschrijving en afbeeldingen beoordeelt.

Verzendgegevens

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$16.00 21 dagen via Registered Shipping
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Overzicht

Vermeldingstype : Standard
Product-ID : 739357
Begint : 24th October 2024 11:34 pm PDT
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