Septarian Stone - Egg Nebraska fossil and as a radiation shielding

and as a radiation shielding material

Approximate Size of 1 piece: 8cm x 5

Shank Width: 3mmApproximate weight of 1 piece: 3g

Approximate size for 1 piece: 7cm x 6cm x 3cm

It can be worn everyday

Septarian Stone - Egg Nebraska fossil and as a radiation shieldingMined from: Madagascar Description: Septarian stones are unique and beautiful limestone nodules with intricately spiderwebbed cracks of calcite running through them. They form when the cracks within sedimentary calcite nodules are filled with calcium carbonate rich water, which slowly crystallizes into black calcite. The calcite is highly UV reactive, glowing a bright yellow color under UV. The color inversion from black to yellow is quite striking!