Clinohumite
Chemical Formula	(Mg,Fe)9(SiO4)4(F,OH)2
Species	Silicates
Crystal System	Monoclinic
Mohs Scale	6
Specific Gravity	3.17-3.35
Color	Brownish to orange, yellow, red
Streak	White
Luster	Vitreous to resinous
Refractive Index	n = 1.623 - 1.702 n = 1.636 - 1.709 n = 1.651 - 1.728
Diaphaneity	Transparent to translucent
Cleavage	Poor on
Fracture	Subconchoidal to uneven
Crystal Habit：Granular, prismatic, twinned