Limestone Dendritic Rough Slabs

223g / 0.492lbs / 7.87oz 3.22" x 3.10" x 0.25" 4.35" x 4.00" x 0.65" Natural and genuine Dendritic Limestone from Germany. It is tan and brown in color. This beautiful limestone, formed about 180 million years ago, is riddled with feathery inclusions called “pseudo-fossils,” or “false fossils”. Dendrites are the branch-like formations of manganese oxide crystallizing within the limestone. A dendrite is a superficial deposit of manganese oxide that has crystallized in a multi-branching tree-like pattern. This pattern is what fools us into thinking they are plant fossils.