Bledozeleni dragi kamen, sastoji se iz silicije, magnezije, gvožđa i kreča, ponajviše kao sastojak vulkanskih stena; zove se i tirkiz, augit.
ETYM French pyroxčne, from Greek pyros fire + xenos a stranger; -- so called because it was supposed to the be a stranger, or of rare occurrence, in igneous rocks.
Any one of a group of minerals, silicates of calcium, iron, and magnesium with a general formula X,YSi2O6, found in igneous and metamorphic rocks. The internal structure is based on single chains of silicon and oxygen. Diopside (X = Ca, Y = Mg) and augite (X = Ca, Y = Mg,Fe,Al) are common pyroxenes.
Jadeite (NaAlSi2O6), which is considered the more valuable form of jade, is also a pyroxene.
Any of a group of crystalline silicate mineral common in igneous and metamorphic rocks.