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Polished fossil stromatolite. Pseudogymnosolenid type. DOG166 oldest agate in the world Dimensions approximately 185mm x 130mm

USD142.50 USD177.50

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Ships within 48 hours · Estimated delivery Sep 16 - Sep 21

Notes

Hard rule
Description

Dimensions approximately 185mm x 130mm x approx  9mm thick

Dimensions approximately 175 mm x 160 mm x 5 mm thick

Weighs 540 grams

The environment they grew in was possibly freshwater algal marshes

with great weathered rough side

Polished fossil stromatolite. Pseudogymnosolenid type. DOG166 oldest agate in the world Dimensions approximately 185mm x 130mmDOG166 Fossil stromatolite slab, polished on one side. Superb museum quality specimen ! An as yet unidentified stromatolite, form of Pseudogymnosolenid type. The stromatolite occurs as small digitate columns which are finely laminated. It probably grew in shallow water conditions with intermittent subaerial exposure. From an unassigned unit of the Wyloo Group. Age is approx. 1. 8 billion years. From south west of Newman Western Australia. Approx. 280

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