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| WikiPedia definition of "crystals" |
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... anything congealed by freezing, such as ice. The word once referred particularly to quartz, or "rock crystal". Most metals encountered in everyday life are polycrystals. Crystals are ...
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The Crystals, a singing group from the New York City area, were one of the most successful girl groups of the early 1960s, best remembered for the hit singles "He's A Rebel", "Da ...
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Subcategories. This category has the following 5 subcategories, out of 5 total. C [+]
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Ice crystals - small crystalline form of ice including hexagonal columns, hexagonal plates, dendritic crystals, and diamond dust. Temperature and water vapor humidity determine ...
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Crystallization is the (natural or artificial) process of formation of solid crystals precipitating from a uniform solution or melt, or more rarely deposited directly from a gas.
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Liquid crystals are substances that exhibit a phase of matter that has properties between those of a conventional liquid, and those of a solid crystal.
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Crystal healing is an alternative medicine technique that employs stones and crystals as healing tools. The practitioner places crystals on different parts of the body, often ...
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In nature quartz crystals are often twinned, distorted, or so intergrown with adjacent crystals of quartz or other minerals as to only show part of this shape, or to lack obvious ...
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... Classification of crystals by symmetry. The defining property of a crystal is its inherent symmetry, by which we mean that under certain operations the crystal remains unchanged.
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Vast crystals of gypsum, up to 10 metres in length have been found in the "Cueva de los Crystales" in Naica, Chihuahua, Mexico. Uses of Gypsum
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