1 Definition
1.1 definisi
trachyte punika rock vulkanik nggoleki-grained werna abu-abu kang utamané dumadi saka Feldspar alkali
norite punika mafic intrusive igneous rock dumadi umumé saka calcium-sugih plagioclase labradorite, orthopyroxene, lan olivine
1.2 Sajarah
1.2.1 asal
1.2.2 panemu
Alexandre brongniart Rene Hauy
Dingertèni
1.3 Etimologi
saka trakhus greek atos 'utawa roughness trakhutēs
saka jeneng norwegian kanggo norway, Norge
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