1.If the large K-feldspar crystals, see roots like veins and veinlets, color is shallow, is perthitic.
如果在大的钾长石晶体上，见有根须状的细脉，而且细脉的颜色又较浅，则为条纹长石。
2.If the large K-feldspar crystals, see roots like veins and veinlets, color is shallow, is perthitic.
如果在大的钾长石晶体上，见有根须状的细脉，而且细脉的颜色又较浅，则为条纹长石。