Rocks, pots and fossils!
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What causes this form of sinkhole?
Started by imatfaal |
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What is this
Started by imthehink |
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Is this evidence for a giant flood?
Started by itisus |
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How fast can glaciers cut rock?
Started by itisus |
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Do low frequency sounds herald an earthquake?
Started by Ivo Costa |
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Is this a tiny marine worm fossil?
Started by Iwonda |
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How rare is native aluminum metal?
Started by Iwonda |
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Metallic quartz: how did nature create it?
Started by Iwonda |
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Is this suevite with shocked glass?
Started by Iwonda |
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Is this coloured material a mineral?
Started by Iwonda |
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How common are crystalized steinkerns
Started by Iwonda |
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What's the oldest mummified lifeform
Started by Iwonda |
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Can silicon morph into calcium?
Started by Iwonda |
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Can anyone explain these insect fossils?
Started by Iwonda |
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Just how rare is true blue quartz?
Started by Iwonda |
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Can someone identify this geode?
Started by izzy2396 |
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