07345 - Beautiful 1.02 Inch Chalcedonized Fossil Gastropod Cretaceous Dakhla Neltneria fluvial-lacustrine

Name: 07345 - Beautiful 1.02 Inch Chalcedonized Fossil Gastropod Cretaceous Dakhla Neltneria fluvial-lacustrine
Brand: kingstreetapothecary.net
SKU: 9931509554
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SKU 9931509554

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Description

fluvial-lacustrine

In this matrix

Part of the digestive system is preserved and visible

Although it has commonly been assumed that concretions grew incrementally from the inside outwards

No fractures or restoration

07345 - Beautiful 1.02 Inch Chalcedonized Fossil Gastropod Cretaceous Dakhla Neltneria fluvial-lacustrineChaledonized gastropods (specimen at fat left is 3. 0 cm tall) these snail shells have been replaced by translucent, fibrous, microcrystalline quartz (SiO2). This variety of quarz is called chalcedony. Chalcedonization is a variety of silicification. Chalcedonized fossils are uncommon.

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