Dinosaur Bone Cross-Section - Fossil Specimen gabbro mineral sphere Specimens from Romania are admired

Specimens from Romania are admired by collectors for their cool blue-grey tones

Afghanistan

The color inversion from black to yellow is quite striking

It has the kind of honest mineral character collectors like

and biologically formed rather than crystallized underground

Dinosaur Bone Cross-Section - Fossil Specimen gabbro mineral sphere Specimens from Romania are admiredMined from: Morrison Formation, Utah, U. S. A. Era: Mesozoic Geological Age: 145 to 155 mya Description: This one of a kind dinosaur bone cross section from Utah features a broad, polished face with deep earthy brown, reddish burgundy, charcoal, tan, and grey mineral tones. The natural outer edge has been left rough, preserving the rugged fossil texture, while the polished surface reveals the internal bone structure, growth patterning, and mineral