Crystal: Vivianite Chemical Composition: Fe2+3(PO4)2 · 8H2O Detail: Vivianite is a phosphate mineral that forms in highly aesthetic, sharply colored crystals and often forms with organic material such as shells and fossils, and may even form inside them. Vivianite will darken upon exposure to light. Origin: Argentina
Crystal: Vivianite Chemical Composition: Fe2+3(PO4)2 · 8H2O Detail: Vivianite is a phosphate mineral that forms in highly aesthetic, sharply colored crystals and often forms with organic material such as shells and fossils, and may even form inside them. Vivianite will darken upon exposure to light. Origin: Argentina