Properties of Coquina lan Pumice
ukuran gandum
coarse grained
grained nggoleki
rengat
ora duwe aturan baku
planar
tilas
putih
putih, greenish putih utawa abu-abu
porosity
Highly keropos
Highly keropos
luster
kurang kanggo vitreous kanggo submetallic
earthy
kekuatan compressive
ora Sumadhiya
cleavage
ora kasedhiya
sampurna
kateguhan
ora kasedhiya
3
tartamtu gravitasi
1.10-2.24
2.86
Kapadhetan
2.8-2.9 g / cm 3
0.25-0.3 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
impact tahan, meksa tahan