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
syenite punika rock igneous coarse-grained kang dumadi utamané Feldspar alkali lan macem-macem mineral ferromagnesian
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 syénite french, saka syenites latin (lapis) (watu) saka syene
1.4 kelas
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, rock opaque
rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque