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Obsidian
Obsidian

Travertine
Travertine



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Obsidian
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Travertine

Properties of Obsidian lan Travertine

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
 
3-4
grained nggoleki
splintery
putih
Highly keropos
kurang kanggo pearly
80.00 n / mm 2
-
1
1.68
opaque
2.71 g / cm 3
1.09 kj / kg k
impact tahan, meksa tahan, nyandhang tahan