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Pegmatite
Pegmatite

Batubara
Batubara



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Pegmatite
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Batubara

Properties of Pegmatite lan Batubara

Properties

fisik

atose

71-1.5
1 7
👆🏻

ukuran gandum

medium kanggo coarse grained
medium kanggo nggoleki coarse grained

rengat

conchoidal
conchoidal

tilas

putih
ireng

porosity

kurang keropos
kurang keropos

luster

grainy, mutiyara lan vitreous
kurang kanggo vitreous kanggo submetallic

kekuatan compressive

178.54 n / mm 2-
0.15 450
👆🏻

cleavage

sampurna
-

kateguhan

2.1
-

tartamtu gravitasi

2.6-2.631.1-1.4
0 8.4
👆🏻

transparan

tembus kanggo opaque
opaque

Kapadhetan

2.6-2.65 g / cm 31100-1400 g / cm 3
0 1400
👆🏻

situs termal

kapasitas panas tartamtu

0.79 kj / kg k1.32 kj / kg k
0.14 3.2
👆🏻

resistance

tahan panas, impact tahan, meksa tahan
tahan panas