a uniform solid body of a chemical element, compound, or mixture having a characteristic set of planer surfaces or faces; some common crystals may be cubes, rectangular, or blade shaped.
When triglyceride molecules of a fat pass from the liquid state to a solid as a result of the decrease of temperature, they freeze and are found is three different forms. The forms of crystal exist only when the fat is found in the solid state. They can affect the physical properties or functions of the fat.
minerals that form slowly have a distinctive crystal shape
Minerals formed out of rock, clear and regular in shape
solid materials consisting of a regularly-repeated unit. They are a vital class of materials, with examples including drugs, pigments, catalysts, minerals, metals, and alloys. Crystals are very amenable to accurate modeling, since calculations based on the fundamental unit can be extrapolated to the whole system.
Crystal inclusions are minerals that are included in the diamond. Depending on their nature, they may be colorless, redish, brownish, yellowish, greenish or black and may vary in size from a pinpoint to easily discernible crystalline inclusions.
solid objects formed by a repeating three-dimensional pattern; uric acid deposits composed of salt crystals are formed from uric acid Return to previous page
a homogenous solid formed by a repeating three-dimensional pattern of atoms, ions, or molecules and having fixed distances between constituent parts; a mineral, especially a transparent form of quartz - BACK
Crystals are solids whose atoms form a very regular pattern.
Formed by the solidification of a substance. It has a regularly-repeating internal structure, external plane faces, and can be 4, 5 or more sided.
Regularly shaped pieces with angles and flat surfaces
A solid mineral deposit in many gemstones that blocks color dispersion when severe.