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Tanzanian Tanzanite 4.90 Ct Natural Tanzanite Cabs ! Eye Catching Color .A.

SKU
Afmetingen (mm)
13.760 x 8.000 x 5.030mm
Gewicht (cts)
4.900
Kleuren

Tanzanite

Tanzanite is the blue and violet variety of the mineral zoisite (a calcium aluminium hydroxyl sorosilicate), caused by small amounts of vanadium.[3] Tanzanite belongs to the epidote mineral group. Tanzanite is only found in Tanzania, in a very small mining area (approximately 7 km (4.3 mi) long and 2 km (1.2 mi) wide)[4] near the Mererani [sw] Hills.[5]

Tanzanite is noted for its remarkably strong trichroism, appearing alternately blue, violet and burgundy depending on crystal orientation.[6] Tanzanite can also appear differently when viewed under different lighting conditions. The blues appear more evident when subjected to fluorescent light and the violet hues can be seen readily when viewed under incandescent illumination. In its rough state tanzanite is colored a reddish brown to clear, and it requires heat treatment to remove the brownish "veil" and bring out the blue violet of the stone.[7]

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Treatment None

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Standard Shipping - Tracked wordt verdisconteerd tot $15.00 bij bestellingen met 2 of meer artikelen
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:land
DHL wordt verdisconteerd tot $30.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
DHL wordt verdisconteerd tot $30.00 bij bestellingen met 2 of meer artikelen

kenya-treasure
kenya-treasure
:stad land
Geverifieerd
1824e feedback

  • shalimargems
    shalimargems
    Negatief

    Cheated me I haven't received the stone its been almost a month now inspite of the delivery had to be in the same city.

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Overzicht

Vermeldingstype : Standard
Product-ID : 1507074
Begint : 22nd November 2024 05:33 am PST
* Alle prijzen zijn in:valuta