在侵入岩中的角闪石多呈长柱状晶体，但在某些花岗岩、花岗闪长岩中，角闪石的一向伸长的结晶习性并不显著。
Amphibole in the intrusive rock in a long columnar crystal, but in some granite, granodiorite, hornblende has elongated crystal habit is not significant.
吉林省早前寒武纪地质包括太古宙花岗—绿岩带、早元古代集安群和中元古代老岭群。
The early Precambrian in Jilin province includes the Archaeozoic granite-greenstone belt, early Proterozoic Ji'an Group and mid Proterozoic Laoling Group .
燕山早期侵入岩以二长花岗岩、黑云钾长花岗岩为主，其次为花岗闪长岩。
Early Yanshanian intrusions are mainly adamellite, biotite K-feldspar granite with small amount of granodiorite.
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