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Utah Septarian Geode lapidary sculpted and beautifully polished into a Bison with an open visible hollow filled with shiny eye catching calcite crystals
Septarian free form lapidary carved and highly polished with a stunning yellow and clear calcite crystal formation interior
Trilobite approximately 1 3/4" long
The back of the slab is the rough cut that hasn't been conditioned and polished showing the difference a good conditioning and polish can do in highlighting the mineral specimens unique characteristics of pattern
Large amounts of volcanic ash and debris settled in the area
Sponge Choia carteri Dinosaur Bone Utah Septarian Geode lapidary sculptedVery Rare and Excellently preserved intact fossilized sponge found in the Wheeler shale Utah West Desert. Age: Middle Cambrian (521 to 497 mya) Species Name: Choia carteri Order Family: Protomonaxonida Choiidae Phylum: Porifera Locality: Millard County, Utah Size: Approximately 5 1 2" x 4 1 2", 1. 80 lbs. Comes with metal stand. Choiidae is an extinct family of demosponges that lived from the Cambrian to the Lower Ordovician periods. These sponges
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