Dacite

Obsidian

Dacite lan Obsidian

Dacite

Obsidian

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1 Definition

1.1 definisi

dacite punika rock igneous vulkanik kang rintermediate ing komposisi antarane awujud lan rhyolite

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

romania lan Moldova, europe

Ethiopia

1.2.2 panemu

Dingertèni

obsius

1.3 Etimologi

saka Dacia, sawijining provinsi saka kekaisaran Romawi kang lay antarane Kali Danube lan Pagunungan Carpathian ngendi rock ing Pisanan

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

1.4 kelas

batuan beku

1.4.1 sub-kelas

awet rock, rock alus

awet rock, medium atose rock

1.5 kulawarga

1.5.1 group

vulkanik

1.6 kategori liyane

rock grained nggoleki, medium rock grained, rock opaque

rock opaque

2 Tekstur

2.1 tektur

aphanitic kanggo porphyritic

glassy

2.2 werna

bluish - werna abu-abu, coklat, grey, cahya kanggo werna abu-abu peteng

ireng, biru, coklat, ijo, orange, abang, tan, kuning

2.3 pangopènan

kurang

2.4 kekiatan

awet

2.4.1 banyu tahan

✔ ✘

2.4.2 ngeruk tahan

✔ ✘

2.4.3 rereged tahan

✔ ✘

2.4.4 angin tahan

✔ ✘

2.4.5 asam tahan

✔ ✘

2.5 katon

vesicular

mengilap

3 Kagunaane

3.1 arsitektur

3.1.1 Efesus interior

aggregates hiasan, entryways, interior

aggregates hiasan, interior

3.1.2 Efesus njaba

minangka watu bangunan, mapeng watu, Taman hiasan

Taman hiasan

3.1.3 Efesus arsitektur liyane

curbing

durung digunakake

3.2 industri

3.2.1 industri construction

minangka watu ukuran, kanthi jumlah ongko construction, kanggo dalan kanthi jumlah ongko, landscaping

arrowheads, alat nglereni, lading, scrapers, TCTerms tumbak

3.2.2 industri medical

durung digunakake

bedhah

3.3 Efesus jaman

artefak

artefak, perhiasan

3.4 Panggunaan sanès

3.4.1 komersial

tablet commemorative, nggawe kriya

nggawe kriya, mirror, digunakake ing akuarium

4 Jinis

4.1 jinis

dacite footwall, hanging dacite wall, tuff lan biotite dacite

mercon obsidian, mahoni, Sheen obsidian, Snowflake obsidian lan Beludru merak obsidian

4.2 fitur

tuan rumah rock kanggo timbal, iku salah siji saka rock tuwa

pamblokiran negativity, mbantu kanggo ngreksa marang depresi

4.3 pinunjul arkeologi

4.3.1 monumen

durung digunakake

4.3.2 monumen misuwur

ora ditrapake

4.3.3 reca

durung digunakake

4.3.4 patung misuwur

ora ditrapake

4.3.5 Pictographs

used

4.3.6 petroglyphs

used

4.3.7 figurines

durung digunakake

4.4 fosil

absen

5 Tatanan

5.1 tatanan

dacitic magma wis kawangun dening subduksi saka lemah ndhuwur enom laut ing piring Continental felsic nglukis. luwih, ing satunggalipun saperangan wis hydrothermally ngrubah minangka quartz lan sodium sing ditambahake.

nalika lahar dirilis saka gunung, iku diwiwiti saka cooling cepet banget kang freezes mekanisme saka crystallization. asil punika kaca vulkanik karo susunan Gamelan seragam.

5.2 komposisi

5.2.1 isi Mineral

amphibole, apatite, biotite, Feldspar, garnet, hornblade, magnetite, plagioclase, pyroxene, quartz, zirkon

ora kasedhiya

5.2.2 senyawa isi

ca, fe, kalium oxide, mg, kalium, silikon dioksida

aluminium oxide, cao, wesi (iii) oxide, feo, kalium oxide, MgO, keda, sodium oxide, fosfor pentoxide, silikon dioksida, titanium dioxide

5.3 transformasi

5.3.1 metamorphism

✔ ✘

5.3.2 jinis metamorphism

metamorphism kakubur, metamorphism cataclastic