Properties of Tephrite lan Trachyandesite
ukuran gandum
medium kanggo nggoleki coarse grained
grained nggoleki
rengat
ora rata
conchoidal
tilas
bluish ireng
cahya kanggo coklat peteng
porosity
banget kurang keropos
kurang keropos
luster
subvitreous kanggo kurang
earthy
cleavage
crenulation lan mrembet
sampurna
tartamtu gravitasi
2.86
2.8-3
Kapadhetan
2.8-2.9 g / cm 3
2.9-3.1 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, meksa tahan, nyandhang tahan