A varietyof transparent or translucent orthoclase .

冰长石正长石透明或半透明的变体。

The dome is formed of cathedral peak granodiorite , which is easily identified by its large orthoclase phenocrysts .

穹顶是由教堂顶形的花岗闪长岩所组成，这可很容易地以其大型的正长石斑晶来加以确定。

Someone was quite serious about their collecting and assembled all of the orthoclase crystal forms typically found at this famous colorado locality .

收集到了科罗拉多这一著名产地出产的所有典型晶形的正长石标本。

Practice 1 thin section and hand specimen , corundum - sillimanite - orthoclase gneiss resembling kash system .

薄片和手标本，刚玉－夕线石－正长石片麻岩，似kash系统。