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Obsidian
Obsidian

Greywacke
Greywacke



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Obsidian
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Greywacke

Properties of Obsidian lan Greywacke

Properties

atose

ukuran gandum

rengat

tilas

porosity

luster

kekuatan compressive

cleavage

kateguhan

tartamtu gravitasi

transparan

Kapadhetan

kapasitas panas tartamtu

resistance

 
5-5.5
-
conchoidal
putih
banget kurang keropos
vitreous
0.15 n / mm 2
-
-
2.6-2.7
tembus
2.6 g / cm 3
0.92 kj / kg k
tahan panas, impact tahan
 
6-7
sudut lan nggoleki
conchoidal
putih
Highly keropos
kurang
120.00 n / mm 2
sampurna
2.6
2.2-2.8
opaque
2.6-2.61 g / cm 3
0.71 kj / kg k
tahan panas, impact tahan, meksa tahan