Basanite

Classification：Igneous Rock

An alkaline basalt with a relatively low silica content and high alkali content, usually containing phenocrysts of olivine, pyroxene and feldspar.

Basanite, Ne>5% and Ol<5% are also rich in feldspar alkaline basalt, which SiO2 is obviously unsaturated and alkaline. The main minerals are basic plagioclase, olivine, clinopyroxene and feldspar.

An alkaline basaltic rock consisting of clinopyroxene, Xie Changshi, common feldspar and olivine phenocrysts. According to the actual mineral composition, it is determined in the 14 area of QAPF diagram. According to the chemical composition, it is located in the TAS diagram of the U1 area. According to the feldspathoid components can be divided into leucite basanite, nepheline basanite, Feibi dolerite etc.. This name comes from the Greek language basanos, which means the touchstone.