Description

#1196 – A 1.41 x .94 x .71 -inch mineral specimen with two light purple crystals of Amethyst on a bed of drusy Quartz from Jackson Crossroads in Wilkes County, Georgia.  Amethyst from Jackson Crossroads, Georgia, is a product of hydrothermal activity in a metadacite or altered granite host rock, located just above the fall line. The amethyst formed in pockets within this rock through at least two hydrothermal events, with its purple color from background radiation interacting with trace amounts of iron in the quartz. The pockets are often found encased in sticky, brown clay and saprolite, which forms from the weathering of the host rock.