Slovakia Grey Andesite Building & Walling

Andesite effusive igneous rock is gray to dark gray color with frequent vyrastlicami porphyric minerals. Title rock is derived from the name Andes Mountains, where it often occurs. Andesite lava erupted with temperature from 900 to 1100 ° C, their eruptions are often explosive. Its deep-water equivalent of the diorite in the group mapping. Between hypoabysálne and subvolcanic equivalents include diorite porphyry and lamprophyre - kersantit and spesartit.