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Gem Silica, AAA Top Gem Designers Cab
SKU: 7500_1030
The Inspiration Mine is located in the Morenci
area near Globe, Arizona and produced some of the best quality Gem Silica that
has ever been found. The colors ranged from blue to blue-green and most of the
material was mined in the late 60's or early 70's.
Another description for this cabochon
could be Chrysocolla in clear quartz. Although Chrysocolla will sometimes
accumulate sufficient thickness to be cut as a gemstone, it more frequently merely
stains chalcedony, producing an INTENSE blue material that is tough enough
to cut. The finest material is translucent and uniform in its bluish
color. The hardness of Chrysocolla itself is only 2-4 on the Mohs scale, but
the material frequently contains enough silica to become hard and take a high
polish.
This material is very challenging to the cutter
and requires much patience because of the inevitable undercutting that occurs.
A certain amount of care should be taken by the jewelry designer while setting
this stone. It is very solid, but the fact that it is quartz may lead
the designer to handle it with less care than it should perhaps have.
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This lovely cabochon of Gem Silica was cut from rough material that came from the
Inspiration Mine in Arizona.
This cabochon is AAA TOP
GEM Gem Silica and it doesn't get much better than this in a Gem Silica
cabochon.
Notice from the photos
the Malachite which flows down the side of the cabochon and gives this stone
even more eye appeal than it already has.
This GORGEOUS cabochon,
with its INTENSE blue/green coloring is pit and fracture free and we have
priced it at $12 per carat, which is considerably less than the current market
value of $15-25 per carat.
All
of our cabs are polished on the back unless otherwise stated above.
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Cabochon Information |
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Material: Gem
Silica/Arizona |
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Size: 26x9x4mm |
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Weight: 8cts. |
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(One inch =25.40mm) |
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MOHS SCALE: 2 - 4 |
(To see larger images of this cab please click on the thumbnail
photos below)
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