Properties of Foidolite lan Obsidian
ukuran gandum
medium kanggo nggoleki coarse grained
ora ditrapake
rengat
conchoidal
conchoidal
porosity
banget kurang keropos
banget kurang keropos
luster
subvitreous kanggo kurang
vitreous
kekuatan compressive
ora Sumadhiya
cleavage
sampurna
non-ana
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
2.86
2.6-2.7
Kapadhetan
ora Sumadhiya
2.6 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, nyandhang tahan
tahan panas, impact tahan