(Redirected from Carat (purity)) The fineness of a precious metal object (coin, bar, jewelry, etc.) represents the weight of fine metal therein, in proportion to the total weight which includes alloyed base metals and any impurities.
Fort Redoubt, is actually called Advance Redoubt, and is one of four Third System fortifications, built to protect the Pensacola Navy Yard, located in Pensacola FL.
Currently, a lava dome is growing in Redoubt's summit crater. Photography and thermal images showed that the dome, as of April 17, is about 500 m by 700 m (1640 ft by 1300 ft) in size and at least 50 m (160 ft) thick. The dome growth is accompanied by emissions of volcanic ash and gases.