长石可以分为钾长石和斜长石两大类，钾长石中包括正长石和微斜长石。
Feldspar can be divided into two large group, the potassium feldspar includes orthoclase and microcline.
条纹长石是正长石或微斜长石与钠长石交生的产物，其中正长石或微斜长石多于钠长石。
Perthite is orthoclase or microcline and albite over the product, which is more than orthoclase or microcline albite.
此外，还有矿物组合与辉长岩相似的辉长伟晶岩；与霞石正长石相似的霞石正长伟晶岩等等。
In addition, mineral assemblage and gabbro similar to gabbro pegmatite; and nepheline syenite nepheline syenite rock similar pegmatite and so on.
月光石有几种颜色，但分析测试表明都属于正长石，研究表明月光效应是由其自身结构决定的。
The moonstone has several kinds of color, they all belong to orthoclase. It is shown by study that the moonlight effect is determined by its own inner structure.
结果表明，两者成分差别不大，而结构差别较大，无色透明的为透长石，出溶叶片发育；微红色的为正长石或低透长石，出溶结构不发育。
The results indicate that the colourless and transparent one is sanidine with homogeneous exsolution microstructure and the reddish one is orthoclase or sanidine without exsolution microstructure.
结果表明，两者成分差别不大，而结构差别较大，无色透明的为透长石，出溶叶片发育；微红色的为正长石或低透长石，出溶结构不发育。
The results indicate that the colourless and transparent one is sanidine with homogeneous exsolution microstructure and the reddish one is orthoclase or sanidine without exsolution microstructure.
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