1 Definition
1.1 definisi
tephrite iku sawijining aphanitic kanggo porphyritic tekstur, vulkanik rock igneous
ijolite iku sawijining rock intrusive igneous kang dumadi utamané nepheline lan pyroxene alkali, biasane aegirine-augite
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
1.3 Etimologi
saka tephra greek, awu saka basa indo-european, kanggo ngobong
saka syllable pisanan saka tembung finnish ii-vaara, iijoki, andc. umume digunakake jeneng geografis ing finland, lan gr ing. xiflos, watu
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 grained nggoleki, medium rock grained, rock opaque
rock grained coarse, rock opaque