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Gritstone
Gritstone

Trachyte
Trachyte



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Trachyte

Gritstone lan Trachyte Definition

1 Definition
1.1 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
1.2 Sajarah
1.2.1 asal
pennines, england
dingerteni
1.2.2 panemu
JJ Ferber
Alexandre brongniart Rene Hauy
1.3 Etimologi
saka grit + watu
saka trakhus greek atos 'utawa roughness trakhutēs
1.4 kelas
rocks sedimentary
batuan beku
1.4.1 sub-kelas
awet rock, hard rock
awet rock, medium atose rock
1.5 kulawarga
1.5.1 group
ora ditrapake
vulkanik
1.6 kategori liyane
rock grained coarse, rock opaque
rock grained nggoleki, rock opaque