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Websterite
Websterite

Obsidian
Obsidian



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Obsidian

Websterite lan Obsidian Definition

Definition

definisi

websterite punika ultramafic lan ultrabasic rock sing kasusun saka takeran kira-kira witjaksono orthopyroxene lan clinopyroxene. iku jinis khusus saka pyroxenite.
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

Sajarah

asal

webster, North Carolina
Ethiopia

panemu

Ora dingerteni
obsius

Etimologi

saka kutha webster dumunung ing North Carolina
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius

kelas

batuan beku
batuan beku

sub-kelas

awet rock, hard rock
awet rock, medium atose rock

kulawarga

group

plutonic
vulkanik

kategori liyane

rock grained coarse, rock opaque
rock opaque