Amazing Green Vivianite crystals on Black Psilomelane in The Shell!
Deposit: Cape Iron Horn,Black sea,Krasnodar region,Russia.
Dimension:23x15x7мм
Vivianite from this deposit is remarkable for its vibrant blue to green hues, which can deepen in color upon exposure to air due to oxidation. One of the most intriguing occurrences of vivianite in this region is its formation within fossilized shells. These unique specimens are created when vivianite precipitates inside the cavities of ancient shells, resulting in beautiful, naturally encased crystals.