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.
pumice punika rock vulkanik sing kasusun saka Highly vesicular atos kaca vulkanik tekstur, kang bisa utawa ora bisa ngemot kristal
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
gossen Pampanga
Dingertèni
1.3 Etimologi
saka gossen Pampanga saka gos, getih saka guit Pampanga lawas
saka pomis french lawas, saka varian dialect latin saka pumex
1.4 kelas
rocks metamorphic
batuan beku
1.4.1 sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained nggoleki, medium rock grained, rock opaque
rock grained nggoleki, rock opaque