1 Definition
1.1 definisi
luxullianite jinis langka granit, dikenal kanggo ngarsane kelompok-kelompok saka radially disusun kristal Tourmaline acicular kang diubengi déning phenocrysts saka orthoclase lan quartz ing matrik saka kuarsa, Tourmaline, Feldspar alkali, mica coklat.
obsidian punika kaca vulkanik alami kawangun minangka rock igneous extrusive. diprodhuksi nalika lahar felsic extruded saka gunung mbledhos ndingin kanthi cepet karo wutah kristal minimal
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
1.3 Etimologi
saka desa luxulyan di, england, ngendi iki macem-macem granit ditemokake
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
1.4 kelas
1.4.1 sub-kelas
awet rock, hard rock
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
1.6 kategori liyane
rock grained coarse, rock opaque
rock opaque