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It is a secondary structure
| Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
Commonly confined to bedded rocks, developed by pressure, and generally accompanied by some recrystallization of the min erals in the rock. not to be confused with jointing.
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Recrystallization, английский
- A process whereby a distorted grain structure of cold worked metals is replaced by a new, stress-free grain structure as a result of annealing above a specific minimum temperature for a specific time.
- Formation of new crystalline mineral grains in a rock due to metamorphism
- The change from one crystal structure to another, as occurs on heating or cooling through a critical temperature.
- The formation of a new, strain-free grain structure from that existing in cold worked metal, usually accomplished by heating.
- Changes in microstructure and properties upon heating of cold worked metal.
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Hazardous helper, английский
Commonly used as a synonym for cathead.
Tumbled, английский
Cleaved carbon or other diamonds the sharp edges and corners of which have been rounded and blunted by the tumbling action in a barrel-shaped vessel.
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