Properties of Obsidian lan Phyllite
ukuran gandum
ora ditrapake
medium kanggo nggoleki coarse grained
rengat
conchoidal
conchoidal
porosity
banget kurang keropos
Highly keropos
luster
vitreous
phyllitic
kekuatan compressive
ora Sumadhiya
cleavage
non-ana
crenulation lan mrembet
kateguhan
ora kasedhiya
1.2
tartamtu gravitasi
2.6-2.7
2.72-2.73
Kapadhetan
2.6 g / cm 3
2.18-3.3 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan
tahan panas, meksa tahan, banyu tahan