Pseudo-stromatolite, extra large Dolomite This is medium-quality material

This is medium-quality material

a relatively common iron oxide mineral

Approx size and weight  variable by piece

the white quartz layer fluoresces white and the calcite has a strong orange-red reaction with phosphorescence

Pseudo-stromatolite, extra large Dolomite This is medium-quality materialLocale: Morocco Approx dimensions: 6 x 5. 75 x 4" Approx weight: 4 lbs 7 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,