Properties of Icelandite lan Pantellerite
ukuran gandum
banget nggoleki-grained
grained nggoleki
rengat
ora rata
sub-conchoidal
porosity
kurang keropos
kurang keropos
cleavage
ora kasedhiya
conchoidal
tartamtu gravitasi
2.5-2.8
ora Sumadhiya
transparan
opaque
tembus kanggo opaque
Kapadhetan
2.11-2.36 g / cm 3
ora Sumadhiya
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, meksa tahan, ngeruk tahan, nyandhang tahan
tahan panas