Pseudo Stromatolite (Sandstone Concretions) Style:Specimen 2 Specimens average measurements are approx

Specimens average measurements are approx

Seraphinite has only one known locality in the entire world

*spheres shown not included

It is much softer than true onyx (a quartz mineral) and will easily scratch and fizz in vinegar

Variety of small Christmas tree carvings

Pseudo Stromatolite (Sandstone Concretions) Style:Specimen 2 Specimens average measurements are approxThese concretions are frequently referred to and marketed as stromatolites (trace fossils of algal colonies), but are not actually fossils. When cut and polished they do not show distinctive layering patterns you would expect to see in a stromatolite. From reports on the location, the flower like patterns are only seen on specimens exposed to the surface, indicating they are caused by erosion. A concretion is a hard, compact mass of rock that forms