Obsidian lan Pegmatite Definition

Obsidian

Pegmatite

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1 Definition

1.1 definisi

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

pegmatite rock punika holocrystalline, rock igneous intrusive kang dumadi saka interlocking kristal phaneritic

1.2 Sajarah

1.2.1 asal

Ethiopia

dingerteni

1.2.2 panemu

obsius

rj Hauy

1.3 Etimologi

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

saka pegma greek, pegmat kang bab liya- katunggilaké + -ite

1.4 kelas

batuan beku

1.4.1 sub-kelas

awet rock, medium atose rock

awet rock, hard rock

1.5 kulawarga

1.5.1 group

vulkanik

plutonic

1.6 kategori liyane

rock opaque

rock grained coarse, rock opaque

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