Properties of Coquina lan Tephrite
ukuran gandum
coarse grained
medium kanggo nggoleki coarse grained
rengat
ora duwe aturan baku
ora rata
porosity
Highly keropos
banget kurang keropos
luster
kurang kanggo vitreous kanggo submetallic
subvitreous kanggo kurang
kekuatan compressive
ora Sumadhiya
cleavage
ora kasedhiya
crenulation lan mrembet
kateguhan
ora kasedhiya
2.4
tartamtu gravitasi
1.10-2.24
2.86
Kapadhetan
2.8-2.9 g / cm 3
2.8-2.9 g / cm 3
kapasitas panas tartamtu
ora Sumadhiya
resistance
tahan panas, impact tahan, meksa tahan, nyandhang tahan
tahan panas, impact tahan