Stone Agate Details
is a Variety of Silica primarily Chalcedony, with characteristics of fine grains and bright colors. Agates are found in a variety of rocks typically associated with Volcanic Rock and Metamorphic Rock.
Category: Chalcedony variety
Formula: SiO2 Silicon Dioxide
Crystal: Rhomboherdral Microcrystalline
Crystal Habit: Cryptocrystalline Silca
Colors: White to Gray, lite Blue, orange to red and black banded.
Mohs Scale: 6.5-7
Associated with the following:
Wikipedia Details: HERE: