quartz-crystal
71crystal — ► NOUN 1) a clear transparent mineral, especially quartz. 2) a piece of a solid substance having a natural geometrically regular form with symmetrically arranged plane faces. 3) highly transparent glass with a high refractive index. 4) the glass… …
72Quartz (électronique) — Pour les articles homonymes, voir Quartz. Un quartz de 4 MHz dans un boîtier hermétique HC 49/US …
73Crystal skull — This article is about The Crystal Skulls. For other uses, see Crystal skull (disambiguation). The crystal skull at the British Museum (ID Am1898C3.1 ), similar in dimensions to t …
74Crystal structure — In mineralogy and crystallography, crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice… …
75Crystal habit — This article is about the descriptive term used in mineralogy. For the addictive drug, see crystal methamphetamine. Pyrite sun (or dollar) in laminated shale matrix. Between tightly spaced layers of shale, the aggregate was forced to grow in a… …
76quartz glass — noun colorless glass made of almost pure silica • Syn: ↑quartz, ↑vitreous silica, ↑lechatelierite, ↑crystal • Derivationally related forms: ↑crystallize (for: ↑crystal), ↑ …
77Crystal twinning — Diagram of twinned crystals of Albite. On the more perfect cleavage, which is parallel to the basal plane (P), is a system of fine striations, parallel to the second cleavage (M). Crystal twinning occurs when two separate crystals share some of… …
78Quartz (minéral) — Pour les articles homonymes, voir Quartz. Quartz Catégorie IX : silicates[1] …
79Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… …
80Crystal growth — Crystallization Concepts …
