Natural African Amethyst AAA
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Amethyst, the rich purple variety of quartz, was once so rare that it was classified as one of the precious gems.
COLOR: Natural African Amethyst is purple gem from light purple to intense royal purple mauve and violet.
ORIGIN: The large deposits of amethyst were discovered in Brazil in the 19th century. Today the finest amethyst comes from Zambia in Africa.
CHEMICAL COMPOSITION: Amethyst is a macro crystalline variety of Quartz with the chemical formula SiO2 (Silicon Dioxide). Experts attribute the purple colour of amethyst to small amounts of Iron Oxide (Fe2O3) impurities (approximately 40 parts per million) at specific sites in the crystal structure of quartz.
CUT: Baguette, Emerald, Heart, Marquise, Oval, Oval Cabochon, Pear, Round, Round Cabochon, Square cuts. But more offbeat fancy shapes such as the trillion cuts are coming on strong.
SPECIFIC GRAVITY: 2.65
REFRACTIVE INDEX: 1.544-1.553
FORMATION: Amethyst is produced in abundance where it occurs in large geodes within volcanic rocks.
TREATMENT: Heating is the most common treatment which can alter the color of a stone to lighten, darken, or change completely. Very dark amethyst is heated to produce lighter shades. Most of the amethyst available in the gem market is enhanced to get exotic shades. On treating Amethyst under controlled conditions one can produce some very astonishing colors or intensify the royal purple color at 400c to 600c.
UNUSUAL PROPERTIES: A purple variety of quartz, amethyst is a semi – precious yet popular gemstone. If it were not for its abundance in nature, amethyst would be very expensive. Its royal colour makes it desirable and can be compared to the most expensive of purple crystals. So if you want a gem that is easy on your pocket and yet glamorous, amethyst is the perfect choice. The amethyst is sufficiently durable and can be worn confidently without worry. It does not break easily due to absence of cleavage planes. Amethyst is the trendiest purple gemstone. Its distinctive colour complements almost any complexion and wardrobe.
BIRTHSTONE: Amethyst is the birthstone for the month of February & the anniversary gemstone for the 6th year of marriage.
USAGE: Earrings, pendants and any other jewellery, Beads jewellery.
WHAT WE SUPPLY: Best quality Natural African Amethyst in above mentioned Cuts are AAA grade. We can also supply A and AA grade. It will be lighter in color to AAA and cheaper.
We offer Amethyst from 2 origins
African Amethyst – Deeper color