Properties of Trachyte lan Pumice
ukuran gandum
grained nggoleki
grained nggoleki
rengat
ora kasedhiya
planar
tilas
putih
putih, greenish putih utawa abu-abu
porosity
kurang keropos
Highly keropos
cleavage
ora kasedhiya
sampurna
kateguhan
ora kasedhiya
3
tartamtu gravitasi
2.7
2.86
Kapadhetan
2.43-2.45 g / cm 3
0.25-0.3 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, nyandhang tahan
impact tahan, meksa tahan