1 Definition
1.1 definisi
pumice punika rock vulkanik sing kasusun saka Highly vesicular atos kaca vulkanik tekstur, kang bisa utawa ora bisa ngemot kristal
granulite nggoleki kanggo medium grained metamorphic rock karo granular kristal polygonal.
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
1.3 Etimologi
saka pomis french lawas, saka varian dialect latin saka pumex
saka granulum latin, a gandum sethithik utawa grained nggoleki
1.4 kelas
batuan beku
rocks metamorphic
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, rock opaque
rock grained coarse, medium rock grained, rock opaque