Pseudo-stromatolites (medium) Magnetite but is softer and more

but is softer and more prone to scratches

fluorescing white with orange spots under 365nm UV light

peridotite

108g  H 2

Pseudo-stromatolites (medium) Magnetite but is softer and moreLocale: 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.