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Obsidian
Obsidian

Pegmatite
Pegmatite



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Obsidian
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Pegmatite

Properties of Obsidian lan Pegmatite

Properties

fisik

atose

5-5.57
1 7
👆🏻

ukuran gandum

-
medium kanggo coarse grained

rengat

conchoidal
conchoidal

tilas

putih
putih

porosity

banget kurang keropos
kurang keropos

luster

vitreous
grainy, mutiyara lan vitreous

kekuatan compressive

0.15 n / mm 2178.54 n / mm 2
0.15 450
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cleavage

-
sampurna

kateguhan

-
2.1

tartamtu gravitasi

2.6-2.72.6-2.63
0 8.4
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transparan

tembus
tembus kanggo opaque

Kapadhetan

2.6 g / cm 32.6-2.65 g / cm 3
0 1400
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situs termal

kapasitas panas tartamtu

0.92 kj / kg k0.79 kj / kg k
0.14 3.2
👆🏻

resistance

tahan panas, impact tahan
tahan panas, impact tahan, meksa tahan