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Batubara
Batubara

Hornfels
Hornfels



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Batubara
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Hornfels

Properties of Batubara lan Hornfels

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Properties

atose

ukuran gandum

rengat

tilas

porosity

luster

kekuatan compressive

cleavage

kateguhan

tartamtu gravitasi

transparan

Kapadhetan

kapasitas panas tartamtu

resistance

 
1-1.5
medium kanggo nggoleki coarse grained
conchoidal
ireng
kurang keropos
kurang kanggo vitreous kanggo submetallic
-
-
-
1.1-1.4
opaque
1100-1400 g / cm 3
1.32 kj / kg k
tahan panas
 
2-3
grained nggoleki
conchoidal
-
Highly keropos
mengilap
5.80 n / mm 2
sampurna
-
3.4-3.9
opaque
0.25-0.30 g / cm 3
0.84 kj / kg k
tahan panas, impact tahan, meksa tahan