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  1. 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. …

  2. Crystal | Definition, Types, Structure, & Facts | Britannica

    Nov 7, 2025 · 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 …

  3. Swarovski Official | Jewelry, Watches and Crystal Decorations

    Step into the magical world of Swarovski: charming jewelry, elegant watches and sparkling crystal creations commemorate the brand's tradition and craftsmanship. Find out more

  4. What Is a Crystal? Definition and Examples

    Mar 28, 2020 · A crystal is a solid material in which atoms, ions, or molecules are arranged in a highly ordered and repeating three-dimensional pattern, known as a crystal lattice.

  5. What is a Crystal? - International Gem Society - IGS

    Dec 19, 2024 · For gemologists and mineralogists, the scientific definition of a crystal goes right to the atomic level. A crystal is a solid whose atoms are arranged in a "highly ordered" repeating …

  6. Crystal - Structure, Lattice, Symmetry | Britannica

    Nov 7, 2025 · The most interesting crystal structures are those of elements that are neither metallic, covalent, nor diatomic. Although boron (B) and sulfur (S) have several different …

  7. Billy Crystal seen at Rob Reiner's LA home hours after his longtime ...

    1 day ago · Actor Billy Crystal was spotted emotionally leaving the home of their longtime friend Rob Reiner hours after the famed filmmaker and his wife were found stabbed to death.

  8. CRYSTAL Definition & Meaning - Merriam-Webster

    The meaning of CRYSTAL is quartz that is transparent or nearly so and that is either colorless or only slightly tinged. How to use crystal in a sentence.

  9. CRYSTAL | definition in the Cambridge English Dictionary

    CRYSTAL meaning: 1. transparent glass of very high quality, usually with its surface cut into delicate patterns: 2…. Learn more.

  10. Structure and classification of crystals | Britannica

    crystal, Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry.