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lattice systems, crystal systems and crystal families. The various classifications are often confused: in particular the trigonal crystal system is often...

In crystallography, the hexagonal crystal family is one of the 6 crystal families, which includes two crystal systems (hexagonal and trigonal) and two...

In crystallography, crystal structure is a description of ordered arrangement of atoms, ions, or molecules in a crystalline material. Ordered structures...

or Fedorov groups, and represent a description of the symmetry of the crystal. A definitive source regarding 3-dimensional space groups is the International...

William Edward Crystal (born March 14, 1948) is an American comedian, actor, and filmmaker. He is known as a standup comedian and for his film and stage...

In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most...

Crystal Palace Football Club (commonly referred to as simply Palace) is a professional football club based in Selhurst in the Borough of Croydon, South...

A crystal radio receiver, also called a crystal set, is a simple radio receiver, popular in the early days of radio. It uses only the power of the received...

The Dark Crystal is a 1982 dark fantasy film directed by Jim Henson and Frank Oz. It stars the voices of Stephen Garlick, Lisa Maxwell, Billie Whitelaw...

The Crystal Palace was a cast iron and plate glass structure, originally built in Hyde Park, London, to house the Great Exhibition of 1851. The exhibition...

Pokémon Crystal Version is a role-playing video game developed by Game Freak and published by Nintendo for the Game Boy Color in Japan in 2000 and internationally...

Twenty-two men filed for patents for land in Crystal River. By the mid-1800s, families began to settle in the Crystal River area. Mail was delivered by horse...

from all other 23 Niemeier lattices. Twenty-three four-dimensional crystal families exist within the classification of space groups. These are accompanied...

The Dark Crystal: Age of Resistance is an American fantasy television series produced, made and owned by The Jim Henson Company. It is a prequel to the...

Lead glass, commonly called crystal, is a variety of glass in which lead replaces the calcium content of a typical potash glass. Lead glass contains typically...

three-dimensional crystallographic point groups and 32 five-dimensional crystal families, and the maximum determinant in a 7 by 7 matrix of only zeroes and...

Waterford Crystal is a manufacturer of lead glass or "crystal", especially in cut glass, named after the city of Waterford, Ireland. In January 2009,...

broad categories, the most encompassing of these being the six crystal families. These families can be described by the relative lengths of the three crystallographic...

The Crystals are an American vocal group that originated in New York City. Considered one of the defining acts of the girl group era in the first half...

Crystal is a suburban city in Hennepin County, Minnesota, United States that is about 5 miles from Downtown Minneapolis. The population was 23,330 at...