Bismuth Crystal with Iridescent Oxide sunny20-2024 000 kg) and a post

000 kg) and a post atmospheric mass of 51

Above: Copper Crystal specimen in hand

Stronger than gold

The white color provides additional diffusion of light

This specimen is a custom-cut mini slab of bluestone recovered downstream from the quarry at Craig Rhos-y-Felin located on the northern flank of the Preseli Mountains near Pembrokeshire

Bismuth Crystal with Iridescent Oxide sunny20-2024 000 kg) and a postAbove: Front of specimen card. "The Philosopher takes pleasure in the contemplation of the nature of these compounds while the miner takes pleasure in the profit and use he obtains from the metals he extracts from them." ~ Georgius Agricola, 1546 This specimen is a complete bismuth crystal. They are hand cast in Colorado by a family that specializes in creating bismuth crystals for the jewelry industry. We loved them so much that we had to share them