Properties of Gritstone lan Trachyandesite
ukuran gandum
coarse grained
grained nggoleki
rengat
conchoidal
conchoidal
tilas
putih
cahya kanggo coklat peteng
porosity
Highly keropos
kurang keropos
cleavage
sampurna
sampurna
kateguhan
ora kasedhiya
2.3
tartamtu gravitasi
2.250
2.8-3
Kapadhetan
2.2 g / cm 3
2.9-3.1 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, meksa tahan, nyandhang tahan