Properties of Krikel lan Mugearite
ukuran gandum
banget nggoleki-grained
ora ditrapake
rengat
ora kasedhiya
conchoidal
tilas
putih
putih kanggo werna abu-abu
porosity
Highly keropos
kurang keropos
luster
kurang
ora kasedhiya
cleavage
slaty
ora ditrapake
tartamtu gravitasi
2.2-2.8
2.8-3
Kapadhetan
2.4-2.8 g / cm 3
2.9-3.1 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, meksa tahan, nyandhang tahan