Russian Ammonite Quenstedticeras C black tourmaline Handpicked assortment of 8 mini

Handpicked assortment of 8 mini mushroom carvings

The black color is often due to the presence of iron impurities within the crystal structure

These pieces are polished into an Obelisk shape

and 1 inch in height

3 inches in width

Russian Ammonite Quenstedticeras C black tourmaline Handpicked assortment of 8 miniThese Quenstedticeras Ammonite come all the way from Russia. Quenstedticeras is a genus Upper Callovian (Middle Jurassic) ammonites known for their high quality, often pyritized and iridescent, fossils found primarily in Russia. These cephalopods, which lived in marine environments, are characterized by moderately evolute shells with strong, bifurcating ribs, forming a starburst pattern. Measuring 1. 3 inches in length, 1. 4 inches in height, and . 4