Agate

Property	Specification
Color	Brown, White
Chemical Formula	SiO₂ (Silicon Dioxide)
Hardness	6.5 - 7 on Mohs scale
Density	2.58 - 2.64 g/cm³
Transparency	Translucent to Opaque
Luster	Vitreous (Glassy)
Fracture	Conchoidal
Crystal System	Trigonal (Hexagonal)
Cleavage	None
Refractive Index	1.54 - 1.55
Streak	White
Formation	Forms in volcanic rocks
Uses	Jewelry, Decorative items, Agate slices