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Wind Cave National Park Dogtooth Spar
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Wind Cave National Park
Speleothems - Dogtooth Spar
Dogtooth Spar
NPS Photo by Bill Holmes
Dogtooth Spar
 
Spear-shaped crystals of calcite called dogtooth spar frequently line small pockets in the limestone rock. These crystals are a prominent feature of other caves in the Black Hills, most notably, Jewel Cave of Jewel Cave National Monument.
 

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Last Updated: August 10, 2007 at 19:52 MST