1 Definition
1.1 definisi
gossan wis intensely oxidized, weathered utawa decomposed rock, biasane ing sisih ndhuwur lan kapapar saka simpenan biji utawa urat Mineral.
rapakivi granit punika granit hornblende-biotite ngemot kristal dibunderaké akeh orthoclase kang mantled karo oligoclase
1.2 Sajarah
1.2.1 asal
indonesia
finland, europe
1.2.2 panemu
gossen Pampanga
Jakob sederholm
1.3 Etimologi
saka gossen Pampanga saka gos, getih saka guit Pampanga lawas
saka rapakivi finnish kang stands for rock crumbly
1.4 kelas
rocks metamorphic
batuan beku
1.4.1 sub-kelas
awet rock, medium atose rock
awet rock, hard rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained nggoleki, medium rock grained, rock opaque
rock grained coarse, rock opaque