Properties of Comendite lan Argillite
ukuran gandum
grained medium
grained nggoleki
rengat
mrembet
conchoidal kanggo ora rata
tilas
bluish ireng
putih kanggo werna abu-abu
porosity
Highly keropos
Highly keropos
luster
kurang
waxy lan kurang
tartamtu gravitasi
2.38
2.56-2.68
Kapadhetan
-9999 g / cm 3
2.54-2.66 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, impact tahan