Properties of Comendite lan Tuff
ukuran gandum
grained medium
grained nggoleki
porosity
Highly keropos
Highly keropos
luster
kurang
vitreous kanggo kurang
tartamtu gravitasi
2.38
2.73
Kapadhetan
-9999 g / cm 3
1-1.8 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, impact tahan, meksa tahan, nyandhang tahan