1 Definition
1.1 definisi
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
rapakivi granit punika granit hornblende-biotite ngemot kristal dibunderaké akeh orthoclase kang mantled karo oligoclase
1.2 Sajarah
1.2.1 asal
pennines, england
finland, europe
1.2.2 panemu
JJ Ferber
Jakob sederholm
1.3 Etimologi
saka grit + watu
saka rapakivi finnish kang stands for rock crumbly
1.4 kelas
rocks sedimentary
batuan beku
1.4.1 sub-kelas
awet rock, hard rock
awet rock, hard rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained coarse, rock opaque
rock grained coarse, rock opaque