- nailhead spar
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кристаллический кальцит в виде шляпки гвоздя
English-Russian dictionary of geology. 2011.
nailhead spar
Смотреть что такое "nailhead spar" в других словарях:
nailhead spar — noun : calcite that crystallizes in nail headed forms … Useful english dictionary
Calcite — A one inch Calcite Rhomb that shows the Double image refraction property. General Category Carbonate mineral … Wikipedia
Jewel Cave National Monument — National monument, southwestern South Dakota, U.S. Established in 1908, it occupies an area of 2 sq mi (5 sq km). It is noted for its limestone caverns, a series of chambers joined by narrow passages. The known length of the caverns is 77 mi (124 … Universalium
