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Obsidian
Obsidian

Comendite
Comendite



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Obsidian
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Comendite

Properties of Obsidian lan Comendite

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
grained medium
mrembet
bluish ireng
Highly keropos
kurang
92.40 n / mm 2
-
2
2.38
opaque
-9999 g / cm 3
0.79 kj / kg k
tahan panas, impact tahan