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This cluster of flashy, lustrous gem clear quartz crystals is colored a light tangerine orange color..
Fibrous malachite is arguably the showiest form of this popular mineral. Here the malachite has crys..
This Herkimer Diamond quartz crystal is as near-perfect as they come, and it has an enhydro bubble i..
Coprolite is fossilized dinosaur poop, a trace fossil from dinosaurs that roamed what is now Madagas..
The Kawah-Ijen volcano in Indonesia has a unique feature: it discharges molten sulfur which drips fr..
Here is an eye-catching chalcopyrite specimen that features sparkling iridescent chalcopyrite in fla..
Here is a pastel yellow, translucent hemisphere of ball fluorite on sparkling clear "sugar quartz" f..
This gem rough nugget of chrysoprase weighs 66 grams, and is 2.1" across. The color is a rich, satur..
In 2009, Ruck's Pit was producing fabulous fossil clam specimens with an unusual twist: they had gol..
This sharp, tabular wulfenite crystal hails from the famous Red Cloud Mine in Arizona. The color is ..
This colorful specimen features baby pink, gemmy, terminated, high quality rose quartz crystals. The..
This is a specimen of petalite, a rare lithium-rich pegmatite mineral, from Brazil. This section of ..
You will be amazed by the intensity of the rainbow colors on this polished fluorite crystal. From en..
This is an excellent specimen of a fossil leaf, Gymnocladus hesperia (a Fagaceae), from Utah's Green..
Here is a nodule of azurite from the Congo, which is richly covered with crystals that are shaped as..
This is a 187 gram (6.6 ounce) piece of the famous Nandan meteorite, which was witnessed when it fel..
The blood red veins on this polished carnelian nugget stand out very sharply against the rich, satur..
The neon bright colors on this specimen of peacock ore, a form of chalcopyrite, are brightly iridesc..
This formation was created by pouring molten copper at 2200 degrees Fahrenheit into a bale of hay wh..
Here is a rare specimen of bertrandite from a closed locality in Connecticut. The micro crystals are..
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