Properties of Pseudotachylite lan Anthracite
ukuran gandum
banget nggoleki-grained
medium kanggo nggoleki coarse grained
rengat
ora rata
conchoidal
tilas
cahya kanggo coklat peteng
ireng
porosity
kurang keropos
kurang keropos
kekuatan compressive
ora Sumadhiya
cleavage
ora duwe aturan baku
non-ana
kateguhan
ora kasedhiya
ora kasedhiya
tartamtu gravitasi
2.46-2.86
1.1-1.4
transparan
transparent kanggo Translucent
opaque
Kapadhetan
2.7-2.9 g / cm 3
1.25-2.5 g / cm 3
resistance
tahan panas
tahan panas, banyu tahan