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Gemstones from
GeoGem-USA
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MONTANA SAPPHIRE
GeoGem mines a portion of the famous "Rock Creek" deposit of Sapphires
located near Philipsburg, Montana. This complex deposit has yielded large quantities of
gem quality Sapphires for over 100 years. These "Sapphire Mountains" yield a very mixed
variety of fancy colored Sapphires including yellow, orange, padparadscha, pink, violet,
green, cornflower blue, and an occasional ruby (red Sapphire). Generally, these fine
Sapphires are relatively small cutting gemstones of one third carat to one carat in size.
However, large stones or "Doorknobs" as the local miners refer to them are sometimes
found - upwards of 30 carats! These great american stones are available in a variety
of shapes and sizes from GeoGem. These superb gems are "Made by Nature" right here in
the U.S.A.!!!
 OREGON SUNSTONE
GeoGem also mines a variety of Gem Feldspar or Labradorite that is rapidly becoming popular.
The Oregon Sunstone has been highly recognized over the last ten years due to the stones
immense variety of color variations caused by varying degrees of copper mineralization.These
stones range from a deep pidgeon blood red to kelly green. Some of the stones show Bi and
Tri coloration. Other stones display a rare light phenomena known as Di or Trichroism.
Further, a good many of these stones show an intense chatoyancy or "Schiller" effect caused by
millions of microscopic copper platelets. World-Class gem carvers have found the sunstone
to be captivating. Faceters find orienting the "Schiller" a stimulating challenge and designers
are finding that this Oregon state gemstone is in every case a true "One-Of-A-Kind" gem.
These stones occur as phenochrysts in volcanic flows in central and southern Oregon. The
unique occurence of microscopic copper is only found in Oregon. The World's Largest colored
Sunstone was found by GeoGem in 2002 and is currently at the Smithsonian Institute. This stone
weighs an impressive 812 carats! Once again, these wonderful designer stones are available
in a vast assortment from GeoGem. Great "Art By Nature" from the GeoGem gallery of natural
American gemstones!!!
 "FANTASTIC FACETS"
GeoGem is partnered with a Sri Lankan lapidary and has a variety of associations with several
"Master Facetors" in the U.S. With 81 commercial faceting styles and the unlimited variety
offered by our special cutters with custom curve and freeform faceting, GeoGem is emerging
as one of the premiere stone dealers in the U.S. Contact us directly or watch for our
"Fantastic Facets" in our
"Buy It Now" storefront. We offer a selection of fine gemstones
from "Amethyst to Zincite"!
 "CLASSY CABOCHONS"
GeoGem also engages the Sri Lankan lapidary in the production of fine designer Cabochons.
Utilizing a large variety of domestic Jaspers, Agates, Opals, and Turquoise, GeoGem has
something for everyone. These "Classy Cabs" range from "Amber to "Zebra Marble" and are
available either directly or in our
"Buy It Now!" storefront.
 NEW BEADS
Recently, GeoGem started producing extraordinary beads from the Oregon Sunstone. The rich,
intense fire of the "Killer Schiller" or copper platelets found within the Sunstone is
unsurpassed by any other gemstone. This extreme chatoyancy and copper color will compliment
pearls or will "Stand Out On Its Own"! Try some of these new beads today!!!
 SPECIALS
For the very "Best Deals" that GeoGem has to offer, please visit our weekly auctions on Ebay.
GeoGem lists hundreds of items every week of the year. Just click the link below and
"We Will See You There"!
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