Metavivianite
A variety of Minerals

What is Metavivianite?
Metavivianite (Fe2(PO4)2(OH)2·6H2O) is a hydrated iron phosphate mineral found in a number of geological environments. As a secondary mineral it is typically formed from oxidizing and dehydrated vivianite. Metavivianite is typically found as dark blue or dark green prismatic to flattened crystals. It was named by C. Ritz, Eric J. Essene, and Donald R. Peacor in 1974 for its structural relationship to vivianite.
Metavivianite Market Value Calculator
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Metavivianite Localities Map
See where Metavivianite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Map preview
North ZoneCentral RidgeSouth Basin
Quick Facts
Physical Properties
- Color
- Dark blue to blue-black; Dark green to green-black
- Hardness (Mohs)
- 1.5 - 2
- Density
- 2.69 g/cm³
- Streak
- Blue or greenish blue
Chemical Properties
- Chemical Formula
- Fe2+Fe3+2(PO4)2(OH)2 · 6H2O
- Elements
- Fe, H, O, P
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