Properties of Scoria lan Obsidian
ukuran gandum
grained nggoleki
ora ditrapake
rengat
conchoidal
conchoidal
porosity
Highly keropos
banget kurang keropos
luster
subvitreous kanggo kurang
vitreous
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
non-ana
kateguhan
2.1
ora kasedhiya
tartamtu gravitasi
ora Sumadhiya
2.6-2.7
Kapadhetan
ora Sumadhiya
2.6 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan