Pseudo-stromatolite, extra large "Badonkadonk" Stalactitic chalcedony White inclusions create a crazed

White inclusions create a crazed (crackled) pattern that radiates out from the center of each face

It appears aragonite formed over calcite points which then partially dissipated

The piece is effectively three intergrown crystals in a stepped formation

These arches are originally created by drilling a hole through a chunk of sandstone and sandblasting the material into a smoothed arch

Pseudo-stromatolite, extra large "Badonkadonk" Stalactitic chalcedony White inclusions create a crazedLocale: Morocco Approx dimensions: 7 x 4. 75 x 4" Approx weight: 6 lbs 4 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,