Properties of Skarn lan Lignite
ukuran gandum
grained nggoleki
medium kanggo nggoleki coarse grained
rengat
ora duwe aturan baku
conchoidal
tilas
cahya kanggo coklat peteng
ireng
porosity
kurang keropos
Highly keropos
luster
waxy lan kurang
kurang kanggo vitreous kanggo submetallic
kateguhan
2.4
ora kasedhiya
tartamtu gravitasi
2.86
1.1-1.4
Kapadhetan
2.8-2.9 g / cm 3
800-801 g / cm 3
resistance
tahan panas
tahan panas