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