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TVJ Proudly Offers a "RARE" Anahi Ametrine Mine, Bi-Colour AMETRINE - Briolette (Drilled) - 14.97ct
TVJ Proudly Offers a "RARE" Anahi Ametrine Mine, Bi-Colour AMETRINE - Briolette (Drilled) - 14.97ct

TVJ Proudly Offers a "RARE" Anahi Ametrine Mine, Bi-Colour AMETRINE - Briolette (Drilled) - 14.97ct

1 was available / new
R172.50 auction closed
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Product information

Discreet item
Condition:
New
Location:
South Africa
Carats:
More than 10
Cut:
Briolette
Clarity:
VVS
Customer ratings:
Product code:
14.97 AMETRINE BRIOLETTE
Bob Shop ID:
264269946

 

 

The Anahí mine, Bolivia, has produced large amounts of amethyst, citrine, and amethyst-citrine for the gem market. Field and experimental investigations conclusively show that the amethyst-citrine color combination in quartz crystals from Anahi is natural and does not result from laboratory treatment or heating. The unusual color patterns probably result from the uncommon geologic conditions under which these quartz crystals formed, although the crystal chemical properties controlling the sector color zoning still elude explanation. 

The mine produces some 2,500–3,500 kg of gem-quality material, from a total 120 tonnes of quartz mined each year. Amethyst averages the highest production (44%), followed by ametrine (33%), and citrine (23%); ametrine remains the most lucrative product.

 

   

  SUPPLIERS PICTURES. ACTUAL GEM. 

PICTURE IS ENLARGED 

 

 Gem type: AMETRINE

 

SHAPEBRIOLETTE (DRILLED)TREATMENTUNTREATED
WEIGHT14.97ctORIGINANAHI AMETRINE MINE, ANDES, BOLIVIA
DIMENSIONS11.8x23.0x10.6mmCLARITYTYPE II - VVS
COLOURPURPLE AND GOLD BI-COLOURHARDNESS7
LUSTREADAMANTINEQUANTITY1

 

                      

 

 

 

 

GIA CLARITY CHART 

 

Customer ratings: 1 ratings

good
07 Feb 2017