a dark green or black aluminosilicate mineral of the pyroxene group. It occurs in many igneous rocks, including basalt, gabbro, and dolerite.
普通辉石。
"early 19th cent.: from Latin
n. 普通辉石
Pyroxene is exclusively diopside augite, with a composition relatively close to the diopside-hedenbergite join.
所有辉石是透辉石质普通辉石,其成分相对近于透辉石——镁铁辉石。
Pyroxene is exclusively diopside augite, with a composition relatively close to the diopside - hedenbergite join.
所有辉石是透辉石质普通辉石,其成分相对近于透辉石- -镁铁辉石。
The groundmass has the same mineral components as phenocryst, and is composed of plagioclase, augite and olivine.
电子探针成分分析显示,基质矿物组成与斑晶矿物组成相同,均是由斜长石、辉石和橄榄石组成;
Mineral constituents consist mainly of jadeite, aegirine - augite, magnesio - riebeckite, winchite, magnesio - hornblende, actinolite, quartz, albite, rutile and sphene.
主要组成矿物为硬玉、霓辉石、镁纳闪石、蓝透闪石、镁角闪石、阳起石、 石英、 钠长石、金红石和榍石。
Mineral constituents consist mainly of jadeite, aegirine - augite, magnesio - riebeckite, winchite , magnesio - hornblende , actinolite , quartz, albite, rutile and sphene.
主要组成矿物为硬玉、 霓辉石、 镁纳闪石、蓝透闪石、镁角闪石、阳起石、 石英、 钠长石、 金红石和榍石。
晶体常呈短柱状,横断面近等边的八边形,集合体呈致密粒状。颜色为黑绿或褐黑色,条痕灰绿,相对密度为3.2~3.6,硬度为5~6。玻璃光泽,二组解理交角为87度。普通辉石为岩浆成因的矿物。常见于基性岩中,与橄榄石、基性斜长石等矿物共生。暂时无实用价值。右图为普通辉石标本。
a dark green or black aluminosilicate mineral of the pyroxene group. It occurs in many igneous rocks, including basalt, gabbro, and dolerite.
普通辉石。
"early 19th cent.: from Latin