| Hamelin Pool Western Australia 2013 By John Boom Stromatolite's The stromatolite's are a microbially mediated rock, so it's both biological and geological. They can be thousands of years old. They are like living fossils. |
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| Hamelin Pool Western Australia 2013 By John Boom Stromatolite's The stromatolite's are a microbially mediated rock, so it's both biological and geological. They can be thousands of years old. They are like living fossils. |
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