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This is a 245-gram, fine specimen of solid gem rough sugilite in a gorgeous shade of dark, extra-ric..
This specimen of crocidolite, which is a variety of riebeckite, consists mainly of highly compacted ..
Inside of these sharp, clear quartz crystals are radiating stars of black hollandite, which were tra..
This specimen features very dark green micro-crystals of mottramite arrayed which have bubbled up in..
"Heart of the Universe" is the unusual name given the rose quartz crystals from this locality in Ind..
There is a winged mosquito and some gnats that were trapped inside this piece of amber when it petri..
There are over a dozen phantom layers in this polished slice of fluorite from China. They are mainly..
This colorful dioptase specimen from Kazakhstan is a rich emerald green. Many of the crystals, which..
Here is an eye-catching specimen features multiple sky-blue aquamarine crystals with many black scho..
Here is a specimen of the rare mineral babingtonite, from the Lane Quarry in Westfield, Massachusett..
Here is a superb specimen of skeletal Herkimer Diamond quartz from Treasure Mountain Diamond Mine in..
This enhydro quartz crystal has a liquid-filled pocket with an air bubble trapped inside. The crysta..
Here is a ruby crystal that was found at the well-known diggings in Mysore, India. The hexagonal cry..
Here is a razor-sharp sceptered Herkimer Diamond from Treasure Mountain in Little Falls, NY. The ste..
Here is a beautiful peridot crystal in a gemmy grass green color. The crystal is well-shaped for the..
The colorful blues, magentas, greens, and yellows on this specimen of bismuth are really eye-catchin..
This highly aesthetic specimen features a 1.1", double terminated, glowing yellow apatite crystal an..
I collected this matrix specimen of pyrite during my visit to Navajun a few years ago. There are 6 p..
Here is a Spanish fluorite specimen that features sharp cubic crystals to 1.5" of a rich bluish viol..
The diggings at Hickory Hill produce some of the clearest, most gem-perfect Herkimer diamonds around..
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