Blue Chalcedony Geode with Quartz Crystals Size: estimated 3.4 inches in length
This natural geode specimen features a botryoidal layer of blue chalcedony lining the interior cavity, accompanied by a secondary growth of microcrystalline to druzy quartz crystals. The chalcedony presents a subtle periwinkle to pale blue hue, typical of cryptocrystalline silica formed under low-temperature hydrothermal conditions. Quartz crystallization likely occurred during a later phase of silica-rich fluid infiltration, resulting in a sparkling druzy interior.
