Properties of Trondhjemite lan Pumice
ukuran gandum
medium kanggo nggoleki coarse grained
grained nggoleki
tilas
bluish ireng
putih, greenish putih utawa abu-abu
porosity
banget kurang keropos
Highly keropos
luster
subvitreous kanggo kurang
earthy
kekuatan compressive
ora Sumadhiya
cleavage
ora kasedhiya
sampurna
tartamtu gravitasi
2.86-3
2.86
Kapadhetan
2.73 g / cm 3
0.25-0.3 g / cm 3
resistance
tahan panas, meksa tahan, nyandhang tahan
impact tahan, meksa tahan