Pseudo-stromatolite, extra large Fluorite the lighter brown mineral coating

the lighter brown mineral coating the specimen is lizardite

backed with a 1

I give mine pieces of limestone as a calcium supplement and they definitely use it

Just keep it out of direct sunlight and the elements

This piece of a geode has fat

Pseudo-stromatolite, extra large Fluorite the lighter brown mineral coatingLocale: Morocco Approx dimensions: 7 x 6. 25 x 4" Approx weight: 9 lbs 12. 5 oz 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. First,