Properties of Gritstone lan Rhomb Porphyry
ukuran gandum
coarse grained
grained nggoleki
rengat
conchoidal
conchoidal
porosity
Highly keropos
banget kurang keropos
luster
kurang
subvitreous kanggo kurang
cleavage
sampurna
sampurna
kateguhan
ora kasedhiya
2.7
tartamtu gravitasi
2.250
2.86
Kapadhetan
2.2 g / cm 3
2.8-2.9 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan
tahan panas, meksa tahan