Properties of Chert lan Nephelinite
ukuran gandum
banget nggoleki-grained
grained nggoleki
rengat
ora rata, splintery utawa conchoidal
flat
porosity
Highly keropos
kurang keropos
luster
waxy lan kurang
vitreous kanggo metallic
tartamtu gravitasi
2.5-2.8
2.4-2.9
transparan
tembus kanggo opaque
opaque
Kapadhetan
2.7 g / cm 3
2.5-3 g / cm 3
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas