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World of Rockhounds Museum Quality Specimens Museum quality specimens most of which comes from Smithsonian's National Museum of Natural History
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The Spinning Wheel Cut is a
very simple facet pattern that delivers an unusual display of rolling
spoke-shaped color flashes as the gem is moved. The above gem displays
the deep reddish-purple color typical of the finest Four Peaks Amethyst.
This little gem would work well in a ring or pendant. |
| Too light in color to be called amethyst, but an exceptionally clean and bright gem. |
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Shown above is a very clean, light-colored amethyst from a gorgeous locality. Marquise cuts in amethyst don't display great brilliance, but stones of good body color and this face up shape are quite attractive. This gem is suitable for use in jewelry or as a collector's gem |
| Quartz
amethyst, one of the most recognized quartz gem stones. Quartz is one
of the most diverse natural substances known. This beautiful purple
crystal formation is from the gem and mineral collection of the Smithsonian's
National Museum of Natural History. |
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Azurite, a bright blue mineral which is a copper compound. From the gem and mineral collection of the Smithsonian's National Museum of Natural History. |
| Beryl is
the mineral family which contains aquamarines, emeralds, heliodor, and
morganite. These gems differ only in color caused by chemical impurities.
This large green crystal formation is from the gem and mineral collection
of the Smithsonian's National Museum of Natural History. |
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The mineral Brazilianite. This large yellow-brown crystal formation is from the gem and mineral collection of the Smithsonian's National Museum of Natural History. |
| Black cassitorite
crystals with white quartz. From the gem and mineral collection of the
Smithsonian's National Museum of Natural History. |
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Cerussite crystal. Beautiful white mineral crystals from the gem and mineral collection of the Smithsonian's National Museum of Natural History. |
| Gem corundum
is found in almost every conceivable color, all called sapphire unless
it is red, which is ruby. Corundum is second only to diamond in hardness.
This is a remarkable uncut crystal from the Gem and Mineral Collection
of the Smithsonian's National Museum of Natural History. |
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A beautiful yellow-orange Colate diamond-shaped crystal growing on a sparkling white mineral background. From the gem and mineral collection of the Smithsonian's National Museum of Natural History. |
| The proper
mineral name for most gem tourmaline is elbaite, after the Island of
Elba where it was found long ago. Large crystals of gem tourmaline occur
in a great range of colors. From the gem and mineral collection of the
Smithsonian's National Museum of Natural History. |
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The mineral Fluorapatite, a member of the apatite group which contains more fluorine than chlorine. This brilliant green mineral specimen is from the gem and mineral collection of the Smithsonian's National Museum of Natural History. |
If you would like to submit a mineral to the galleries You can submit them here
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