AQUAMARINE ROUGH CRYSTAL BRAZIL 240 CTS RG-190

Item Information

Dimensions (mm) not provided
Weight (carats) not provided
Colors
Certified Gemstone

AQUA MARINE ROUGH

GREENISH BLUE COLOUR. 

 BEAUTIFUL PC FROM BRAZIL

3 JOINT BARRELS

COMPELTELY NATURAL COLOR 

NO TREATMENT OR ENHANCEMENT 

WEIGHT : CTS  APPROX.

SIZE:  X  X  MM APPROX. 

 In Brazil, there are mines in the states of Minas Gerais, Espírito Santo, and Bahia, and minorly in Rio Grande do Norte.

 

Aquamarine (from Latin: aqua marina, "water of the sea") is a blue or turquoise variety of beryl. It occurs at most localities which yield ordinary beryl, some of the finest coming from Russia. The gem-gravel placer deposits of Sri Lanka contain aquamarine. Clear yellow beryl, such as that occurring in Brazil, is sometimes called aquamarine chrysolite. When corundum presents the bluish tint of typical aquamarine, it is often termed Oriental aquamarine. The deep blue version of aquamarine is called maxixe. Its color fades to white when exposed to sunlight or is subjected to heat treatment, though the color returns with irradiation.

The pale blue color of aquamarine is attributed to Fe2+. The Fe3+ ions produce golden-yellow color, and when both Fe2+ and Fe3+ are present, the color is a darker blue as in maxixe. Decoloration of maxixe by light or heat thus may be due to the charge transfer Fe3+ and Fe2+.[6][7][8][9] Dark-blue maxixe color can be produced in green, pink or yellow beryl by irradiating it with high-energy particles (gamma rays, neutrons or even X-rays).[10]

1d 20h 5m 7s

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Pricing & Details

Bid Increment $1.00
Starting Bid $240.00
Auction ID 267181
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Starts 8th Dec 2016 5:02pm PST
Ends 11th Dec 2016 5:00pm PST

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