Main centres: | 1-3 business days |
Regional areas: | 3-4 business days |
Remote areas: | 3-5 business days |
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.
!!!PICTURE IS MORE SATURATED THAN GEM!!!
Gem type: AMETRINE
SHAPE | OCTAGON | TREATMENT | UNTREATED |
WEIGHT | 2.18ct | ORIGIN | ANAHI AMETRINE MINE, ANDES, BOLIVIA |
DIMENSIONS | 10.49x6.65x3.60mm | CLARITY | TYPE II - VVS |
COLOUR | PURPLE AND GOLD BI-COLOUR | HARDNESS | 7 |
LUSTRE | ADAMANTINE | QUANTITY | 1 |