CERT PARCEL NATURAL TOURMALINE GEMSTONES 4.80 CTS 0405

Item Information

Dimensions (mm) 5 x 5 x 4mm
Weight (carats) not provided
Colors
Certified Gemstone

PARCEL OF NATURAL GREEN TOURMALINE GEMSTONES.

ORIGIN: PAKISTAN

CLARITY: SI1-SI2

GEM SIZE: LARGEST-  ROUND 5 X 3.5 MM

SHAPE: ROUND CUT

TREATMENT: NONE, THIS GEM IS NATURAL

 

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IN THIS AUCTION YOU WILL ALSO RECIEVE:

THE CERTIFICATE OF AUTHENTICATION OF THE GEMSTONE AND ALSO

A COPY OF THE GEMOLOGISTS' CREDITATION FROM THE GEMOLOGICAL INSTITUTE OF AMERICA

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GEMOLOGIST INFORMATION:

COMPANY GEMMOLIGIST HAS CERTIFIED THIS TOURMALINE GEMSTONE AND CERTIFICATE INCLUDED WITH THIS GEMSTONE

AS NATURAL STONE ONLY, NO TREATMENTS.

MANSOOR RAHMAN GRADUATED FROM GEMOLOGICAL INSTITUTE OF AMERICA IN 1979

AND HAS WEALTH KNOWLEDGE ABOUT GEMSTONES AND ACTS AS CONSULTANT TO STARS AND GEMS

 

Tourmaline Gemology

Color: Colorless, pink, brown, red, yellow, green, blue, black, violet, multi-colored

Moh's Hardness: 7-7 1/2

Specific Gravity: 2.82-3.32
Refractive Index: 1.614-1.666
Double Refraction: -0.014 to -0.032
Fluorescence: Weak or none
Cleavage: Indistinct
Fracture: Uneven, small conchoidal, brittle

Crystal System: Trigonal. Long crystals with triangular cross section and round sides.

 

 

 

22h 47m 45s

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Pricing & Details

Bid Increment $1.00
Starting Bid $48.00
Auction ID 161786
Watchers 8 watching
Viewed 1,875 times
Starts 17th Nov 2017 7:00pm PST
Ends 21st Nov 2017 7:00pm PST

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