St. Clair Plate Fossil Fern Display Specimen! Rare Natural Fossil! Blue Mountain Agate In velvet obsidian

In velvet obsidian

and sometimes went by the name of Chrysanthemum Rhyolite due to resemblance to the flower

It is a very rare form of natural volcanic glass Obsidian foun din Mexico

so when you see it

This slab is from the Kambaby Vein

St. Clair Plate Fossil Fern Display Specimen! Rare Natural Fossil! Blue Mountain Agate In velvet obsidianHere is a gorgeous Fossil Fern from the St. Clair area in Pennsylvania! This beautiful specimen has some fantastic well defined imprints! St. Clair Fossils are super hard to find now, and they are in very high demand due to the super unique white on black imprints! These make some great display specimens! Fossils from the St. Clair area are approx 300 to 308 Million years old! Weight: Approx 8. 2 oz Measurements (inches longest approx): 4. 9 x 4. 5 x