4.7 kg Rhodochrosite Pseudomorph after Calcite from Oppu Mine, Japan

Weight: 4.7 kg

Size: approximately 33 × 13 × 9 cm

The original calcite crystals have been replaced by rhodochrosite.

On the left side, there is a dense group of triangular rhodochrosite crystals, mostly just under 1 cm in size. Quartz and pyrite can be seen from the back, while the bottom is mainly quartz matrix with visible pyrite.