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
dacite punika rock igneous vulkanik kang rintermediate ing komposisi antarane awujud lan rhyolite
Sajarah
asal
Ethiopia
romania lan Moldova, europe
panemu
obsius
Ora dingerteni
Etimologi
saka obsidianus latin, misprint saka obsianus (lapis) (watu) saka obsius
saka Dacia, sawijining provinsi saka kekaisaran Romawi kang lay antarane Kali Danube lan Pagunungan Carpathian ngendi rock ing Pisanan
kelas
batuan beku
batuan beku
sub-kelas
awet rock, medium atose rock
awet rock, rock alus
kulawarga
group
vulkanik
vulkanik
kategori liyane
rock opaque
rock grained nggoleki, medium rock grained, rock opaque
tektur
glassy
aphanitic kanggo porphyritic
werna
ireng, biru, coklat, ijo, orange, abang, tan, kuning
bluish - werna abu-abu, coklat, grey, cahya kanggo werna abu-abu peteng
pangopènan
kurang
kurang
kekiatan
awet
awet
banyu tahan
✔
✘
✔
✘
ngeruk tahan
✔
✘
✔
✘
rereged tahan
✔
✘
✔
✘
angin tahan
✔
✘
✔
✘
asam tahan
✔
✘
✔
✘
katon
mengilap
vesicular
arsitektur
Efesus interior
aggregates hiasan, interior
aggregates hiasan, entryways, interior
Efesus njaba
Taman hiasan
minangka watu bangunan, mapeng watu, Taman hiasan
Efesus arsitektur liyane
-
curbing
industri
industri construction
arrowheads, alat nglereni, lading, scrapers, TCTerms tumbak
minangka watu ukuran, kanthi jumlah ongko construction, kanggo dalan kanthi jumlah ongko, landscaping
industri medical
bedhah
-
Efesus jaman
artefak, perhiasan
artefak
Panggunaan sanès
komersial
nggawe kriya, mirror, digunakake ing akuarium
tablet commemorative, nggawe kriya
jinis
mercon obsidian, mahoni, Sheen obsidian, Snowflake obsidian lan Beludru merak obsidian
dacite footwall, hanging dacite wall, tuff lan biotite dacite
fitur
pamblokiran negativity, mbantu kanggo ngreksa marang depresi
tuan rumah rock kanggo timbal, iku salah siji saka rock tuwa
pinunjul arkeologi
monumen
-
-
monumen misuwur
-
-
reca
-
-
patung misuwur
-
-
Pictographs
-
-
petroglyphs
-
-
figurines
-
-
fosil
absen
absen
tatanan
nalika lahar dirilis saka gunung, iku diwiwiti saka cooling cepet banget kang freezes mekanisme saka crystallization. asil punika kaca vulkanik karo susunan Gamelan seragam.
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.
komposisi
isi Mineral
-
amphibole, apatite, biotite, Feldspar, garnet, hornblade, magnetite, plagioclase, pyroxene, quartz, zirkon
senyawa isi
aluminium oxide, cao, wesi (iii) oxide, feo, kalium oxide, MgO, keda, sodium oxide, fosfor pentoxide, silikon dioksida, titanium dioxide
ca, fe, kalium oxide, mg, kalium, silikon dioksida
transformasi
metamorphism
✔
✘
✔
✘
jinis metamorphism
metamorphism kakubur, metamorphism cataclastic, kontak metamorphism
metamorphism kakubur, metamorphism cataclastic
cuaca
✔
✘
✔
✘
jinis udan
udan biologi, udan kimia, udan mechanical
udan biologi, udan kimia, udan mechanical
erosi
✔
✘
✔
✘
jinis erosi
erosi kimia, erosi gisik, erosi Glacier
erosi kimia
fisik
atose
5-5.52-2.25
1
7
👆🏻
ukuran gandum
-
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
tilas
putih
putih
porosity
banget kurang keropos
kurang keropos
luster
vitreous
subvitreous kanggo kurang
kekuatan compressive
0.15 n / mm 270.00 n / mm 2
0.15
450
👆🏻
cleavage
-
sampurna
kateguhan
-
-
tartamtu gravitasi
2.6-2.72.86-2.87
0
8.4
👆🏻
transparan
tembus
tembus
Kapadhetan
2.6 g / cm 32.77-2.771 g / cm 3
0
1400
👆🏻
situs termal
kapasitas panas tartamtu
0.92 kj / kg k0.92 kj / kg k
0.14
3.2
👆🏻
resistance
tahan panas, impact tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan
celengan ing bawana wétan
asia
Afghanistan, Indonesia, Japan, Russia
-
africa
Kenya
-
europe
greece, hungary, iceland, italy, turkey
france, greece, romania, Scotland, spain
wong
-
-
celengan ing bawana kulon
lor amerika
Canada, Mexico, USA
USA
kidul amerika
Argentina, Chile, Ecuador, Peru
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
celengan ing Oseania bawana
australia
New Zealand
New Zealand, South Australia, Western Australia