Properties of Tuff lan Picrite
ukuran gandum
grained nggoleki
grained nggoleki
tilas
putih
putih, greenish putih utawa abu-abu
porosity
Highly keropos
kurang keropos
luster
vitreous kanggo kurang
subvitreous kanggo kurang
cleavage
ora kasedhiya
cacat
kateguhan
ora kasedhiya
2.1
tartamtu gravitasi
2.73
2.75-2.92
Kapadhetan
1-1.8 g / cm 3
1.5-2.5 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas