In chemistry and mineralogy, a crystal is a solid in which the constituent atoms, molecules, or ions are packed in a regularly ordered, repeating pattern extending in all three spatial dimensions.
Generally, crystals form when they undergo a process of solidification. Under ideal conditions, the result may be a single crystal, where all of the atoms in the solid fit into the same crystal structure. However, generally, many crystals form simultaneously during solidification, leading to a polycrystalline solid. For example, most metals encountered in everyday life are polycrystals. Crystals are often symmetrically intergrown to form crystal twins.
Which crystal structure the fluid will form depends on the chemistry of the fluid, the conditions under which it is being solidified, and also on the ambient pressure. The process of forming a crystalline structure is often referred to as crystallization.
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Cristallerie de Montbronn - Crystal factory offering a choice of table sets, vases, trophies and other ornamental art.
Crystal Arts and Crafts - Manufacturer in China of crystal balls, crystal animals, crystal figurines, and laser carved crystals.
Meta Description: [ manufacturer and exporter in China of crystal figurines and specialty crystal gift including crystal award, clock, globe, fruit and flower, animal, toy, laser crystal. ]
Crystal Fanatics Club - Offers a gathering place for those who collect Swarovski Crystal. Includes chat, message boards, calendars and photo galleries.
Meta Description: [ The Crystal Fanatics Club™ Collectors of Swarovski Crystal. ]
Crystal Restoration - Offers repair services, from stemmed glassware to figurines. Includes questionnaire and shipping information.
Meta Description: [ Have your chipped or broken antique and collectible glass and crystal professionally repaired. Chipped crystal restored and broken pieces bonded. Stemware or figurines. ]
CrystalCraft - Offers repair and restoration services. Includes sample price list.
Lalique North America - The Official Website of Lalique North America. Makers of fine crystal jewelry and works of art.
Penrose Crystal - Selection of Eaterford and Penrose crystal.
The Joy of Crystal Collecting - Discussion groups dedicated to collectors featuring Asfour, Baccarat, Crystallite, Preciosa, and Swarovski.
Meta Description: [ Crystal collectible collectors, figurines, Asfour, Baccarat crystal, Crystal World, Lalique, Preciosa crystal, Swarovski, Waterford, Zillermahler, featuring YaHOO GROUPS, CHAT, MESSAGE BOARDS and worldwide crystal collectors. ]
Thos Webb Information - Thos Webb English crystal news and information.
Meta Description: [ Thos Webb and Son. English glass crystal ]
Webb and Corbett Information - Webb and Corbett English crystal news and history.
Meta Description: [ Webb & Corbett. English glass crystal ]
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