11. Riebeckite-granites have close affinities to aplites , shown especially in the prevalence of alkali feldspars. 12. There are also pink and red aplite veins in the igneous complexes up to 5 cm wide. 13. The aplite is the lowest melting remanent of the granite magma, that is poor in volatiles. 14. These mountain ranges are represented the three types of rocks : dikes including lamprophyres, pegmatites and aplites . 15. Intrusions vary widely, from mountain-range-sized batholiths to thin fracture fillings of aplite or pegmatite. 16. The Pi�gut-Pluviers-Granodiorite is crosscut by many grey, in some places pink microgranitic aplite dikes. 17. The aplites associated with diorites and quartz-diabases differ in minor respects from the common aplites which accompany granites. 18. The aplites associated with diorites and quartz-diabases differ in minor respects from the common aplites which accompany granites. 19. By increase of quartz, aplites pass gradually, in a few localities, through highly quartzose modifications into quartz veins. 20. The reddish colours of the aplites and the red facies rocks is due to hematite invading the plagioclase and staining it.
