Properties of Pantellerite lan Lignite
ukuran gandum
grained nggoleki
medium kanggo nggoleki coarse grained
rengat
sub-conchoidal
conchoidal
porosity
kurang keropos
Highly keropos
luster
earthy
kurang kanggo vitreous kanggo submetallic
cleavage
conchoidal
non-ana
kateguhan
2
ora kasedhiya
tartamtu gravitasi
ora Sumadhiya
1.1-1.4
transparan
tembus kanggo opaque
opaque
Kapadhetan
ora Sumadhiya
800-801 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas
tahan panas