Garnet
Chemical Formula	X3Y2(SiO4)3
Species	Silicates
Crystal System	Isometric
Mohs Scale	6.5-7.5
Specific Gravity	3.1-4.3
Color	virtually all colors
Streak	White
Luster	vitreous to resinous
Refractive Index	1.72–1.94
Cleavage	Indistinct
Fracture	conchoidal to uneven
Crystal Habit：rhombic dodecahedra or cubic