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Here is a specimen with several sharply formed emerald crystals to 1.3" that are nicely exposed on t..
This is a copper nugget from Michigan in a bright red-orange "new" copper color, like a shiny penny...
The delicate baby blue color of this anhydrite crystal is very attractive, and the sharp paintbrush ..
This is a colorful specimen of ammolite from Alberta, Canada, the only locality in the world where t..
This is a gemmy specimen of tsavorite garnet, featuring a rich, brilliant green color and bright, gl..
When malachite stalactites are mined in the Congo, they are sometimes cut into thin semi-precious sl..
There is a complete fossil fly with both its wings, as well as other winged bug and gnats, along wit..
The crystals on this dazzling specimen of alum are a lovely light lavender purple, and each one is s..
Here is a fine pyrite specimen that is and eye-catching, highly sculptural specimen. The cubic pyrit..
This is a colorful blue fluorite specimen from the famous Glory Hole pit at the Blanchard fluorite m..
This specimen of barite comes from the highly regarded Stoneham, Colorado locality. The piece is com..
This 2.6" Herkimer diamond (quartz) crystal from New York is double terminated and very gemmy and tr..
Here is a long, single, pristine, double terminated quartz crystal from Tibet, and it is a beauty.&n..
This is a tektite, which is cooled splash material that was thrown out by the impact of a meteorite ..
Here is a nice specimen of smithsonite in a rick pink color with a hint of lavender on one side. It ..
Here is a very fine single pyrite crystal that is 2.2." from tip-to-tip, and 1.4" along the wideset ..
Here is an excellent specimen of anhydrite ("angelite"). The crystal displays the characterist..
Here is a top-notch barite specimen from the celebrated 2012 pocket at Iowa's Linwood Mine. The doub..
Here is a unique staurolite formation popularly known as a fairy cross. Like a cross, the height is ..
Here is a specimen that is a twinned pair of terminated quartz crystals from Tibet, and it is a beau..
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