Gritstone lan Trachyte Definition
definisi
gritstone utawa grit punika hard, coarse-grained, siliceous sandstone
trachyte punika rock vulkanik nggoleki-grained werna abu-abu kang utamané dumadi saka Feldspar alkali
asal
pennines, england
dingerteni
panemu
JJ Ferber
Alexandre brongniart Rene Hauy
Etimologi
saka grit + watu
saka trakhus greek atos 'utawa roughness trakhutēs
kelas
rocks sedimentary
batuan beku
sub-kelas
awet rock, hard rock
awet rock, medium atose rock
group
ora ditrapake
vulkanik
kategori liyane
rock grained coarse, rock opaque
rock grained nggoleki, rock opaque