1 Definition
1.1 definisi
trachyte punika rock vulkanik nggoleki-grained werna abu-abu kang utamané dumadi saka Feldspar alkali
gabbro iku sawijining igneous rock intrusive kang kimia padha karo kanggo basalt plutonic
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
Alexandre brongniart Rene Hauy
christian Leopold von Buch
1.3 Etimologi
saka trakhus greek atos 'utawa roughness trakhutēs
saka latin glaber gundhul, Gamelan, gundul
1.4 kelas
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, rock opaque