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Result search of : C
Title Description
 Cymrite   

A monoclinic mineral, BaAl2 Si2 (O,OH)8 .H2 O; pseudohexagonal; at the Benalt manganese mine, Wales. Named from Cymru, the Welsh name for Wales.  
 C Horizon   
Soil zone that contains partially disintegrated and decomposed parent material. Lies directly under B horizon and grades downward into unweathered material. 
 Calcitization   

A. The act or process of forming calcite, such as by alteration of aragonite. AGI
B. The alteration of existing rocks to limestone, due to the replacement of mineral particles by calcite; e.g., of dolomite in dolomite rocks or of feldspar and quartz in sandstones. 
 Calcitic Dolomite   
A dolomite rock in which calcite is conspicuous, but the mineral dolomite is more abundant; specif. a dolomite rock containing 10% to 50% calcite and 50% to 90% dolomite, or a dolomite rock whose Ca/Mg ratio ranges from 2.0 to 3.5. 
 Crystal Structure   
A. The periodic or repeated arrangement of atoms in a crystal. AGI
B. The arrangement in most pure metals may be imitated by packing spheres, and the same applies to many of the constituents of alloys. 
 Crystal Defect   
Any deviation from perfect periodicity in a crystal structure. Some defects depend on temperature, mainly point defects; others depend on the specific history of the crystal. The presence of defects alters the physical properties of crystals.  
 Crystal Form   
Geometrical form taken by a mineral, giving external expression to orderly internal atomic arrangement. 
 Crystal Axes   
Imaginary lines passing through a crystal in important symmetry directions, intersecting in the origin at the center of the crystal. The axes are usually three in number, and they are chosen to act as a frame of reference by means of which the relative positions of the crystal faces can be described.  
 Crystal Flotation   
The floating of lighter-weight crystals in a body of magma. CF: crystal settling 
 Calcite Marble   A crystalline variety of limestone containing not more than 5% of magnesium carbonate.  
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