1 Definition
1.1 definisi
rapakivi granit punika granit hornblende-biotite ngemot kristal dibunderaké akeh orthoclase kang mantled karo oligoclase
tachylite punika wangun vitreous saka kaca vulkanik basaltic. kaca iki alami dening cooling kanthi cepet saka basalt molten
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
Jakob sederholm
Dingertèni
1.3 Etimologi
saka rapakivi finnish kang stands for rock crumbly
saka tachylite german, saka tachy- + lutos greek telat, leleh
1.4 kelas
1.4.1 sub-kelas
awet rock, hard rock
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained coarse, rock opaque
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque