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Cladopora Fossil
Cladopora is a type of fossilized coral that can be found in...
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Colla Wood Petrified Wood
Good for grounding and stabilizing one's emotions. Particularly useful in calming survival-based...
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Copper Ore
Within the state of Michigan, copper is found almost exclusively in the western...
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Crazy Lace Agate
Agate is a rock consisting primarily of cryptocrystalline silica, chiefly chalcedony, alternating...
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Crinoid Fossil
Crinoids are marine animals that make up the class Crinoidea of the echinoderms (phylum Echinodermata). The...
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Dalmatian Stone
Dalmatian Stone is a form of Granite containing potassium feldspar, plagioclase feldspar, quartz,...
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Datolite Skarn
Datolite Skarn is a Calcium Boron Silicate Hydroxide that occurs in fine...
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Deer Creek Fire Agate
Deer Creek Fire Agate is a high quality fire agate gemstone. The fire...
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Dendritic Opalite
Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content...
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Dinosaur Bone
The unique pattern and different colors in dinosaur bone are caused by...
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Dumortierite
Dumortierite is a fibrous variably colored aluminium boro-silicate mineral, Al7BO3(SiO4)3O3. Dumortierite crystallizes...
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Emerald in Quartz
Emerald is a precious gemstone and a variety of the mineral beryl...
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Epidote in Quartzite
Epidote is an abundant rock-forming mineral, but one of secondary origin. It occurs...
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Feldspar and Mica
Feldspar is the name given to a group of minerals distinguished by...
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Feldspar Granite
Feldspar Granite is a felsic igneous rock and a type of granite...
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Feldspar in Basalt
Feldspars crystallize from magma as veins in both intrusive and extrusive igneous rocks...
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Fiber Optic Glass
This a synthetic (man-made) stone is composed of a substance known as...
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Flower of Peach Agate
Flower of Peach or Flor de Durazno Lace Agate is a rock...