- Crystal - Wikipedia
The scientific definition of a "crystal" is based on the microscopic arrangement of atoms inside it, called the crystal structure A crystal is a solid where the atoms form a periodic arrangement (Quasicrystals are an exception, see below) Not all solids are crystals
- Crystal structure - Wikipedia
All possible symmetric arrangements of particles in three-dimensional space may be described by 230 space groups The crystal structure and symmetry play a critical role in determining many physical properties, such as cleavage, electronic band structure, and optical transparency
- Crystal | Definition, Types, Structure, Facts | Britannica
Crystal, any solid material in which the component atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry Crystals are classified in general categories, such as insulators, metals, semiconductors, and molecular solids
- Crystal - Simple English Wikipedia, the free encyclopedia
A crystal is a solid whose atoms (or molecules) are arranged in a repeating pattern Crystals are made from fluids by Crystallization, which is a kind of phase change
- Crystal Encyclopedia: The Ultimate Crystal Guide - Crystal Vaults
Each crystal type links to an encyclopedia page with everything you would ever want to know about that crystal This includes its history, healing properties, meditation uses, and much more
- Wikipedia, the free encyclopedia
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation
- What is a Crystal? - International Gem Society - IGS
What is a Crystal? Learn the scientific definition of crystal used by gemologists and answer some basic questions about what is and is not a crystal
- What Is a Crystal? Definition, Formation, and Properties
A crystal is defined by an ordered, repeating, three-dimensional arrangement of atoms, ions, or molecules This internal order, known as a crystal lattice, extends throughout the entire solid structure
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