Stone: Calcite on Chalcedony
Weight: 180 g
Size: 11 × 5 x 4 cm
Treatment: None
Origin: Madan, Bulgaria
This natural mineral specimen features well-developed calcite crystals naturally formed on a chalcedony matrix. Under UV light, the calcite shows an intense, bright pink fluorescence that immediately draws attention. The fluorescence photographs were taken using long-wave UV light (365 nm).
