definisi
pumice punika rock vulkanik sing kasusun saka Highly vesicular atos kaca vulkanik tekstur, kang bisa utawa ora bisa ngemot kristal
tachylite punika wangun vitreous saka kaca vulkanik basaltic. kaca iki alami dening cooling kanthi cepet saka basalt molten
Sajarah
asal
spain
iceland
panemu
Ora dingerteni
Ora dingerteni
Etimologi
saka pomis french lawas, saka varian dialect latin saka pumex
saka tachylite german, saka tachy- + lutos greek telat, leleh
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, medium atose rock
kulawarga
group
vulkanik
vulkanik
kategori liyane
rock grained nggoleki, rock opaque
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque