The US Coast Guardâs largest patrol cutters are the 418 foot, 4,500 ton full load Bertholf Class National Security Cutters. The illustration that accompanies the story of the four new 5,000 ton cutters shows a ship, in many ways similar to the National Security Cutter. It appears there is a medium caliber gun on the bow.
Amphibolite is a rock composed mostly of amphibole minerals. Usually it's a hornblende schist like this as hornblende is the commonest amphibole.(more below). Amphibolite forms when basaltic rock is subjected to higher temperatures (550750Â°C) and slightly greater pressure range than that which yields greenschist.mphibolite is a rock composed mostly of amphibole minerals. Usually it's a hornblende schist like this as hornblende is the commonest amphibole. (more below).
Amphibolite /aemËfÉªbÉlaÉªt/ Ã¦mËfÉªbÉlaÉªt is a metamorphic rock consisting mainly of, amphibole especially the species hornblende and. Actinolite a holocrystalline plutonic igneous rock composed primarily of hornblende amphibole is called a, hornblendite which are usually crystal cumulates feldspar groundmass may be a. lamprophyre holocrystalline plutonic igneous rock composed primarily of hornblende amphibole is called a hornblendite, which are usually crystal cumulates feldspar groundmass may be a lamprophyre. Amphibolite is a grouping of rocks composed mainly of amphibole and plagioclase feldspars, with little or no quartz.