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