Kristalgewicht

Kristalgewicht is a term used in gemology and crystallography to denote the mass of a crystal specimen as measured on a precision balance. It is usually expressed in grams or milligrams and serves as a practical descriptor of sample size for experiments, measurements, or appraisal.

Measurement and correction: Mass is measured with an analytical balance; buoyancy correction may be applied to account for air displacement, especially when comparing to reference masses. For tiny crystals, microbalances can be used; surface contaminants or moisture can change apparent weight, and the crystal’s mounting or attached substrate must be accounted for when reporting net kristalgewicht.

Applications and context: In gemology, weight is a key factor in gemstone valuation, but other attributes such as color, clarity, and cut are also important. In crystallography and materials science, crystal mass influences the design of experiments, including diffraction studies and reaction kinetics in sample-based research. Kristalgewicht provides a practical metric for selecting, comparing, and documenting crystal samples.

Relationships and limitations: Kristalgewicht is an empirical property of a specific sample and does not replace related quantities such as molar mass or density. To enable meaningful comparisons, laboratories commonly report gross weight, net weight, sample volume or mass, and the conditions under which the measurement was made.

See also: mass, weight, density, gemology, crystallography, laboratory measurement.