Properties of Scoria lan Websterite
ukuran gandum
grained nggoleki
coarse grained
rengat
conchoidal
ora rata
tilas
putih
putih, greenish putih utawa abu-abu
porosity
Highly keropos
kurang keropos
luster
subvitreous kanggo kurang
kurang kanggo vitreous kanggo submetallic
cleavage
sampurna
ora duwe aturan baku
kateguhan
2.1
ora kasedhiya
tartamtu gravitasi
ora Sumadhiya
3.2-3.5
Kapadhetan
ora Sumadhiya
3.1-3.6 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
impact tahan, meksa tahan, nyandhang tahan