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Painted Dunes at Lassen Volcanic National Park (Lassen Volcanic National Park) (3)	Paleozoic Section / Yampa River Canyon (Yampa River Canyon. Dinosaur National Monument) (1)	Pallasite Meteorite (100 miles west of Saskatoon) (1)	Pallasite Meteorite (Brenham) (2)
Pallasite Meteorite (Imilac) (1)	Panamint Dunes / Death Valley National Park (Panamint Valley / Death Valley National Park) (1)	Panum Crater / Plug-dome Volcano (Mono Lake Tufa State Reserve. Near Lee Vining) (1)	Panum Crater / Volcanic dome (Mono Craters area. Inyo National Forest. Near Lee Vining) (2)
Paradamite (Mapimi) (1)	Pararealgar in Colemanite (Boron) (1)	Pararealgar in Ulexite (Boron) (1)	part of cored volcanic bomb from Big Bomb Crater (Diamond Craters National Monument) (1)
Partition Arch / Arches National Park (Arches National Park. Near Moab) (1)	patterns in sandstone cliffs (Sea of Cortez) (2)	Pectolite (Lower New Street Quarry. Paterson) (1)	Pectolite on Prehnite (Lower New Street Quarry. Paterson) (1)
Pediment / Rocky Mountain Erosion Surface (Mount Evans. Arapaho National Forest) (1)	Pegmatite dike (Anza Borrego Desert; Cool Canyon) (1)	Pegmatite dike (Bolsa Chica State Beach, Huntington Beach) (1)	Pegmatite Dike / Yosemite National Park (Along Glacier Point Rd., Yosemite National Park) (2)
Pegmatite Dikes / Black Canyon of the Gunnison (Colorado) (Black Canyon of the Gunnison National Park) (1)	Pegmatite dyke with tourmaline. (Anza Borrego Desert; Granite Mountain) (1)	Pegmatite on boulder. (Anza Borrego Desert; Granite Mountain) (1)	Pegmatite on diorite boulder. (Anza Borrego Desert; Granite Mountain) (1)
Pegmatite with tourmaline. (Anza Borrego Desert; Granite Mountain) (1)	Pentagonite (Poonah District) (1)	Petrified Corals (Trona Pinnacles, Mojave Desert) (1)	Petrified log atop a sandstone hoodoo, Bisti De Na Zin (Bisti de na Zin wilderness) (1)
Phenakite (Mt. Antero) (1)	Phenakite (Mt. Antero. San Isabel National Forest) (1)	Philipsburgite on Quartz (Black Pine Mine. Philipsburg District) (1)	Phreatic Crater (Steam Explosion Pit) (Inyo Craters. Inyo National Forest. Near Mammoth Lakes) (2)

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