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Showing posts with label
opal
.
Show all posts
Showing posts with label
opal
.
Show all posts
Wednesday, August 28, 2024
Fluorescent Opal Belemnite Fossil
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This opal fossil is UV fluorescent. The original aragonite internal shell dissolved and was replaced by opal in this belemnite fossil. It e...
Tuesday, August 27, 2024
Australian Opal Belemnite Fossil
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The original aragonite internal shell dissolved and was replaced by opal in this belemnite fossil. It existed in the Cretaceous Period. Fos...
Monday, August 24, 2020
Opal Plesiosaur Vertebra Fossil
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In August 2020, I visited The Field Museum of Natural History. It is an amazing place for any one interested in natural history. My main ...
Tuesday, February 18, 2020
Opal Gastropod Fossils
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Pictured are some nice fossils found in New South Wales, Australia (Lightning Ridge?). These snails date to the Cretaceous Period. Foss...
Wednesday, August 31, 2016
Opal Belemnite Fossils
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The original aragonite internal shell dissolved and was replaced by opal in these belemnite fossils. They existed the Cretaceous Period. ...
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