BLUE CHALCEDONY (kal-sed-uh-nee) is a form of quartz consisting of compact submicroscopic fibrous crystal aggregates. We were fortunate enough to score a large parcel of rough specimens covered in sparkling drusy. Some have more of a lavender blue color than others. This one has one dark line of blue in the agate layer. 1.5 lbs, 4.5"
