1.382 kg, 4 pieces. $100/kg. Cathedral quartz from the Diamantina operation in Minas Gerais, Brazil. Water-clear to lightly milky points with stepped, layered growth up the flanks — smaller parallel terminations building against the main crystal in tiers, which is where the cathedral name comes from. Several faces carry drusy secondary crystal. Points run roughly 3 to 5 inches. Natural and untreated — no dyeing, coating, or stabilizing, as with everything we carry. Every lot is filmed before it ships — what you see in the video is the material that arrives.
