the Little RiverFormation and conformably underlain by crystal tuff as well as quartz-feldspar augen schist of the Nepisiguit Falls Formation. The contact...
double-terminated quartz crystals discovered within exposed outcrops of dolomite in and around Herkimer County, New York, and the Mohawk River Valley in the US...
underwater cave system formed from Ocala Limestone and connected to the CrystalRiverFormation. This connection leads to caves with similar ecosystems, but P...
Crystal Geyser is a cold water, carbon dioxide driven geyser located on the east bank of the Green River approximately 9 miles (14 km) downstream from...
the Green RiverFormation of Wyoming and Utah; the Makgadikgadi Pans in Botswana and in the Nile Valley in Egypt. The trona near Green River, Wyoming,...
fossil inioid (Mammalia, Cetacea) from the Chagres Formation of Panama and the evolution of 'river dolphins' in the Americas". PeerJ. 3: e1227. doi:10...
by minute fluid inclusions of gas, liquid, or both, trapped during crystalformation, making it of little value for optical and quality gemstone applications...
systems in Ohio and contains many crystalformations. Approximately 90% of its stalactite and stalagmite formations are still active. The cavern system...
encountered. Then, in 1958, moissanite was found in the upper mantle Green RiverFormation in Wyoming and, the following year, as inclusions in the ultramafic...
Entrada Formation. In the type area of southern Utah, the Carmel Formation is divided into the Judd Hollow Member, a basal limestone member; the Crystal Creek...
related to the formation of the crystal structure of an amorphous structure. For a polymer material with liquid crystals, the liquid crystals are molecules...
carbonate mineral and one of the three most common naturally occurring crystal forms of calcium carbonate (Ca CO3), the others being calcite and vaterite...
proved conclusively that passages in Crystal Cave extended toward Mammoth Cave proper, at least exceeding the Crystal Cave property boundaries. However,...
The Tioga may appear in the formation as a gray, brown, black, or olive bed, or parting, consisting of coarse crystal tuff or tuffaceous shale, thinly...
contain water Stone waterfall formations simulate frozen cascades Cave crystals Dogtooth spar are large calcite crystals often found near seasonal pools...
component. Amphibole crystals are enclosed in intersitital plagioclase crystals and sometimes contain secondary biotite crystals. Raw sulfur deposits...
dislocation is a linear crystallographic defect or irregularity within a crystal structure that contains an abrupt change in the arrangement of atoms. The...
of frazil crystals clumped together, which makes the ocean surface resemble an oil slick. Grease ice is the second stage in the formation of solid sea...
number of four. XeO2 forms when xenon tetrafluoride is poured over ice. Its crystal structure may allow it to replace silicon in silicate minerals. The XeOO+...
characterized by 13 periods of eruptive activity. This volcanism has led to the formation of several types of volcanic landforms, including cinder cones, stratovolcanoes...
The Chinle Formation is an Upper Triassic continental geological formation of fluvial, lacustrine, and palustrine to eolian deposits spread across the...
rocks cooled down quickly once they reached the Earth's surface. Mineral crystals in these rocks are therefore very small. Volcanic rocks are widely distributed...
Actun Tunichil Muknal (the Cave of the Crystal Sepulchre), also known locally as ATM, is a cave in Belize, near San Ignacio, Cayo District, notable as...
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