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This polished gem calcite rhombohedron is water-clear, making it easy to see it perform the trick of..
Here is a fine specimen of melanite, which is a variety of andradite garnet. It consists of a sharpl..
The color of this choice specimen of polished labradorite is amazingly vivid, with shades of turquoi..
This large, sparkling specimen of creedite features multiple spiky spheres of radiating red-orange c..
Brilliantly shiny botryoidal bubbles cover the entire display face of this hematite specimen from Mo..
This superb vanadanite specimen features brilliant cardinal red crystals that are brightly colorful ..
Tabular quartz crystals, sometimes referred to as "tabbies", have two wide, flat sides. Sometimes th..
Here is a specimen of pyrite that has been formed and polished into the shape of an egg that weighs ..
Here is a classic pyrolusite specimen from this remote locality. Pyrolusite is a manganese oxide min..
The crystals on this calcite specimen from a new 2018 find in Pakistan are sharply formed scalenohed..
The topaz crystals in this superb cluster are a rich amber-orange that has the color of a fine sherr..
The transparent cleaved surfaces on this 8-sided fluorite octahedron let you look inside to see the ..
This is a colorful specimen of hoppered halite crystals in an unusually rich rose-pink color. It fea..
Here is a lovely calcite specimen from a new 2018 find in China. It features stacked towers of sharp..
Hold this specimen in the sun or a bright light and you will not believe the dazzling display of twi..
Aqua aura kyanite is one of the brightest, most colorful members of the family of lab-coated mineral..
Here is a rare specimen of rounded spherical aggregates of whitish botryoidal dundasite, a lead carb..
The contrast between the rich saturated green of the botryoidal prehnite balls and the black (actual..
Here is a lovely crystal of amazonite from the famed Smoky Hawk claim, made famous on the "The Prosp..
Here is a splendid specimen of romanechite, a barium manganese hydroxide species. The piece is compo..
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