Properties of Scoria lan Porphyry
Properties
fisik
atose
5-6
6-7
ukuran gandum
grained nggoleki
grained nggoleki
rengat
conchoidal
ora duwe aturan baku
tilas
putih
putih
porosity
Highly keropos
kurang keropos
luster
subvitreous kanggo kurang
kurang
cleavage
sampurna
cacat
kateguhan
2.1
1.7
tartamtu gravitasi
ora Sumadhiya
2.5-4
transparan
opaque
tembus kanggo opaque
Kapadhetan
ora Sumadhiya
2.5-2.52 g / cm 3
situs termal
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan
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