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Obsidian
Obsidian

Anthracite
Anthracite



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Obsidian
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Anthracite

Properties of Obsidian lan Anthracite

1 Properties
1.1 fisik
1.1.1 atose
5-5.51-1.5
Batubara
1 7
1.1.2 ukuran gandum
ora ditrapake
medium kanggo nggoleki coarse grained
1.1.3 rengat
conchoidal
conchoidal
1.1.4 tilas
putih
ireng
1.1.5 porosity
banget kurang keropos
kurang keropos
1.1.6 luster
vitreous
mengilap
1.1.7 kekuatan compressive
0.15 n / mm 2ora Sumadhiya
Slate
0.15 450
1.1.8 cleavage
non-ana
non-ana
1.1.9 kateguhan
ora kasedhiya
ora kasedhiya
1.1.10 tartamtu gravitasi
2.6-2.71.1-1.4
Granit
0 8.4
1.1.11 transparan
tembus
opaque
1.1.12 Kapadhetan
2.6 g / cm 31.25-2.5 g / cm 3
Granit
0 1400
1.2 situs termal
1.2.1 kapasitas panas tartamtu
0.92 kj / kg k1.32 kj / kg k
Properties of Granulite
0.14 3.2
1.2.2 resistance
tahan panas, impact tahan
tahan panas, banyu tahan