Porphyry lan Obsidian Definition

Porphyry

Obsidian

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1 Definition

1.1 definisi

porphyry punika reddish-coklat kanggo kain rock igneous ngemot phenocrysts akeh macem-macem mineral ditempelake ing matrik nggoleki-grained

obsidian punika kaca vulkanik alami kawangun minangka rock igneous extrusive. diprodhuksi nalika lahar felsic extruded saka gunung mbledhos ndingin kanthi cepet karo wutah kristal minimal

1.2 Sajarah

1.2.1 asal

egypt

Ethiopia

1.2.2 panemu

Dingertèni

obsius

1.3 Etimologi

saka lawas porfire french, saka porfiro italian lan ing sawetara kasus langsung saka porphyrites latin

saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius

1.4 kelas

batuan beku

1.4.1 sub-kelas

awet rock, hard rock

awet rock, medium atose rock

1.5 kulawarga

1.5.1 group

plutonic

vulkanik

1.6 kategori liyane

rock grained nggoleki, rock opaque

rock opaque

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