1520 CTS LARGE SLICED POTCH EDUCATIONAL SPECIMEN PL240

Item Information

Dimensions (mm) not provided
Weight (carats) 1520 carats
Colors

DESCRIPTION:

Item Specifics

Item Type: SOLID NATURAL AUSTRALIAN BLACK  OPAL POTCH

THIS SPECIMEN HAS BEEN SLICED TO EXPOSE CENTRE    NOTE RED FLASH IS ONLY AMALL AREA

IT IS IDEAL EDUCATIONAL OR SPECIMEN PIECE

IT SHOWS HOW OPAL IS FORMED BUT DOES NOT HAVE ANY BLACK POTCH,IF BLACK IT WOULD BE EXPENSIVE

THIS SPECIEMEN  WILL NOT CUT OPAL ,DISPLAY ITEM ONLY


Origin :LIGHTNING RIDGE  REGION

Opal Size :  MM

Treated/Untreated : UNTREATED

Weight (Carats) : 

Colour :AS PER IMAGE

Pattern : BROADFLASH PATTERN

Number of pieces : 1

Accuracy of picture :

  +  
More Bright Accurate Less Bright

Comments :

Brightness Rating, 1 Dullest to 5 Brightest :

   
3.5

   
1 2 3 3.5 4 4.5 5

Opal body tone as recommended by Australian Gemstone Association Ltd :


2

          7    
opal color guide

Base of opal (bottom) :

  +    
Full opal Clean back Some Sand Majority Sand

Cabochon :

+
   
Low Medium High

Definitions

Convert Weight : 5 Carats = 1 Gram
Covert Size : 6 mm = 1/4 inch (approx)

$150.00 USD

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Audit Information

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Pricing & Details

Auction ID 356838
Watchers 4 watching
Viewed 1,796 times
Starts 2nd Mar 2013 8:46pm PST

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