Properties of Coquina lan Pantellerite
ukuran gandum
coarse grained
grained nggoleki
rengat
ora duwe aturan baku
sub-conchoidal
porosity
Highly keropos
kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
earthy
cleavage
ora kasedhiya
conchoidal
kateguhan
ora kasedhiya
2
tartamtu gravitasi
1.10-2.24
ora Sumadhiya
transparan
opaque
tembus kanggo opaque
Kapadhetan
2.8-2.9 g / cm 3
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas