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Here is a a dodecahedral garnet crystal of spessartine garnet from Tanzania that features a rich, vi..
This is a brilliant, flashy, showy specimen of the rare nickel-cobalt arsenide mineral skutterudite,..
This is a flashy, bright, mirror-faced specimen featuring octahedral pyrite crystals which are modif..
Here is a lovely crystal of danburite that seems to glow in a delicate shade of rose pink. The faces..
Fossilized dinosaur poop is called coprolite. It is a trace fossil from dinosaurs that roamed what i..
The rainbow colors in this polished fluorite crystal are amazing. As you go down the want, you pass ..
On this specimen of Chinese fluorite, the crystals are nice and sharp, and the surfaces are shiny an..
Here is a gemmy scapolite crystal from Tanzania's Merelani Hills. It is sharply formed and is colore..
This 168 carat spessartine garnet was collected in 2008 from the now-closed Nani Hill locality in Ta..
Here is a cabinet-sized, self-collected specimen of red-brown rhodochrosite crystals with black aege..
Here is a breathtaking polished specimen of copal amber which comes from the world-famous amber digg..
This 2.1-pound slice of polished fluorite features dozens of banded phantom layers in vivid shades o..
This is an attractive specimen of snow white scolecite, with a host of terminated crystals growing i..
At the Parvati Mine in India, rose quartz crystals were mined in the early 2000s, until the mine clo..
Tucked away inside this specimen of fire agate are lovely formations of natural agate that look like..
Here is a gorgeous, gemmy turquoise blue crystals of aquamarine with some nice see-though areas.&nbs..
Here is a superb crystal of the very rare aluminum borate mineral jeremejevite. The 0.6" crystal is ..
Kunzite is the best-known variety of the mineral spodumene. It is named after famed gemologist Georg..
Sugilite gem rough is scarce and very desirable, and this piece is an unusual light lavender color t..
Here is a specimen of pink opal gem rough that comes from the Acari copper mining area near Nazca. P..
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