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Description

Pseudo-stromatolites (medium)Locale: Morocco Approx dimensions: 2" avg diameter (1. 52. 5") Approx weight: 130g avg (90220g) A stromatolite is a sedimentary fossil structure made by prehistoric bacteria colonies, typically cyanobacteria. Stromatolites in fact are still living and forming in some parts of our world today, including Australia, and are among the earliest forms of lifeand fossilson our Earth. The fossils form in shallow water conditions of lakes or salt water shores.

235g C 3 x 2

This piece has large

and coppery browns

Specimens including this one feature lovely snowy white spheres of radial growth quartz

This specimen from the Potosí Mine has orange-yellow siderite on a heavy base

Approx size: 2"

On back side of the piece

These standing freeforms are created by sandblasting chunks of the material into a smoothed piece

the name “stromatolite” appropriately means “layered rock” in Greek

The thick hyalite at the top of the specimen is a great example of this

Approx weight: 63g

Approx weight: 30g