What kind of quartz is valuable?
Quartz is valuable for its color, sharpness, and the way it is able to show patterns. How much is amethyst crystal worth? Amber, topaz, and other amethyst stones are all worth about $0.50 to $1 per carat. What is the value of a quartz crystal? The value of a quartz crystal is typically around $5-$10 ... Read more...