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
Sajarah
asal
indonesia
finland, europe
panemu
gossen Pampanga
Jakob sederholm
Etimologi
saka gossen Pampanga saka gos, getih saka guit Pampanga lawas
saka rapakivi finnish kang stands for rock crumbly
kelas
rocks metamorphic
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, hard rock
kulawarga
group
-
plutonic
kategori liyane
rock grained nggoleki, medium rock grained, rock opaque
rock grained coarse, rock opaque