Agate

Agate is a variety of chalcedony that exists in many colors and is often commercially dyed. Agate is distinguished by having multiple colors. Agates are translucent.

• Color: Variable

• Streak: White

• Luster: Waxy-Flat

• Cleavage: None

• Refractive index: 1.540 – 1.543

• Mohs Hardness Scale: 6.5 to 7.0

• Specific Gravity: 2.6

• Chemical Composition: Variety of microcrystalline form quartz (SiO2)

• Crystal Structure: Amorphous (none)