BLACK OPALS TECHNICAL DATA
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Species----------------------------Opal
Chemical
Formula--- --SiO2.nH2O
Birthstone
--------------------October
Anniversary
Stone -----Fourteenth
Mohs
Scale Hardness- --#5.5-6.5
Durability---------------------------Fair
Refractive
Index----------1.42-1.47
Specific
Gravity------------------2.15
Opal
Additional Information
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CHECK OUT THESE RARE
GEMSTONES!
HOW TO USE THESE
PRICE TABLES TO PLACE AN ORDER
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BLACK OPALS
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Stock #
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OVAL
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BOOV+Size
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Size
(mm)
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Weight (carats)
|
Quality
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Price (US$)
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Add To Cart
|
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16.0x6.3
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1.70
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Very Good
|
$127.50
|
Cart
|
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13.0x7.2
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1.35
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Very Good
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$121.50
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Cart
|
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12.2x8.2
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1.79
|
Very Good
|
$123.10
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Cart
|
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10.0x6.4
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1.17
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Very Good
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$96.25
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Cart
|
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10.0x8.0
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1.30
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Very Good
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$182.50
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Cart
|
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7.9x5.6
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0.65
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Very Good
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$58.50
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Cart
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7.3x5.4
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0.82
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Very Good
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$60.75
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Cart
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6.6x4.5
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0.49.
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Very Good
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$44.10
|
Cart
|
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BLACK OPAL
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Stock #
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|
BAROQUE SHAPES
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BOBS+Size
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Size
(mm)
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Weight (carats)
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Quality
|
Price (US$)
|
Add To Cart
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12.3X5.5
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0.95
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Very Good
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$114.00
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Cart
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15X6.1
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0.78
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Very Good
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$93.60
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Cart
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11X9
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1.80
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Very Good
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$108.00
|
Cart
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7.7X4.2
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0.28
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Very Good
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$25.20
|
Cart
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