Pumice lan Lignite Definition

Pumice

Lignite

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1 Definition

1.1 definisi

pumice punika rock vulkanik sing kasusun saka Highly vesicular atos kaca vulkanik tekstur, kang bisa utawa ora bisa ngemot kristal

lignite punika coal brownish alus kang nuduhake ngambah tetanduran lan ing antarané coal bituminous lan peat

1.2 Sajarah

1.2.1 asal

spain

france

1.2.2 panemu

Dingertèni

1.3 Etimologi

saka pomis french lawas, saka varian dialect latin saka pumex

saka french, kayu lignum latin + -ite1

1.4 kelas

batuan beku

rocks sedimentary

1.4.1 sub-kelas

awet rock, medium atose rock

awet rock, rock alus

1.5 kulawarga

1.5.1 group

vulkanik

ora ditrapake

1.6 kategori liyane

rock grained nggoleki, rock opaque

rock grained coarse, rock grained nggoleki, medium rock grained, rock opaque

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