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Vivianite and calcite-replaced belemnites Mullica Hill (vivianite) and Arneytown, New Jersey, USA 13.5, 8.5, 5.3 cm long, resp. The vivianite replaced fossils are unusual (crystals showing in smaller one). Calcite replacements are common in the US, as is opal in Australia. (Author: John Medici)

Vivianite and calcite-replaced belemnites
Mullica Hill (vivianite) and Arneytown, New Jersey, USA
13.5, 8.5, 5.3 cm long, resp.
The vivianite replaced fossils are unusual (crystals showing in smaller one). Calcite replacements are common in the US, as is opal in Australia. (Author: John Medici)

Dimensiones: 750 x 503
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