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Polished fossil stromatolite. Alcheringa narrina. ALC139 asperia ashburtonia MN111 Magneprase slab

SKU 85606984165
USD130.00 USD168.00
4.5

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Yard ledger

Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.

Spec sheet
Description

MN111  Magneprase slab

Weighs 126 grams

Lepidolite rough rock

The environment they grew in was most probably a sandy tidal flat or braided river channel

Face is approximately 90mm x 50mm and  9mm thick

Polished fossil stromatolite. Alcheringa narrina. ALC139 asperia ashburtonia MN111 Magneprase slabALC139. Fossil stromatolite rough rock, cut and polished on one side . Alcheringa narrina from the Archaean Meentheena Member within the Tumbiana Formation. Age is approx. 2. 7 billion years. From near Nullagine in Western Australia. Approx. 120mm x 95mm x 50mm thick. This piece has a smattering of pyrite inclusions through it. Rare. Weighs 790grams.

Exchange/Return Notes
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