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Arizona
California
Hawai'i
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Hualalai Xenoliths |
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Pu'u Wa'awa'a Pumice and Obsidian |
Maryland
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Metamorphic Minerals along Northwest Branch |
Nevada
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Calc-Silicate Skarn in the Pine Forest Range |
New Mexico
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Vapor-Phase Minerals near Grants |
Ohio
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Hueston Woods Fossils |
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Trammel Fossil Park |
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Pyrite Nodules at Copperas Mountain |
Oregon
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Pyrite in the Quartzville District |
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Skarn Minerals in the Wallowa Mountains |
Utah
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Trilobites in the House Range |
West Virginia
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Plant Fossils near Davis |
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Plant Fossils along the Highlands Scenic Highway |
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Dolly Sods Coal Seam Behind a Waterfall |
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