definisi
trachyte punika rock vulkanik nggoleki-grained werna abu-abu kang utamané dumadi saka Feldspar alkali
novaculite punika kandhel, hard, nggoleki-grained, siliceous rock metamorpic kang jinis chert sing ngilangi karo rengat conchoidal
Sajarah
asal
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panemu
Alexandre brongniart Rene Hauy
Ora dingerteni
Etimologi
saka trakhus greek atos 'utawa roughness trakhutēs
saka novacula tembung latin, kanggo watu silet
kelas
batuan beku
rocks sedimentary
sub-kelas
awet rock, medium atose rock
awet rock, hard rock
kulawarga
group
vulkanik
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kategori liyane
rock grained nggoleki, rock opaque
rock grained nggoleki, rock opaque