Carved Banded Agate Skull Skull_Length_6.5_IN a science fair

a science fair

These sea turtles

The Bengal Tiger is the most plentiful of the subspecies of tiger

This real human humerus specimen displays clear pathological features

This replica of the human ulna is great for hands on study of anatomy

Carved Banded Agate Skull Skull_Length_6.5_IN a science fairThis skull is carved from banded agate, a variety of chalcedony known for its layered bands of color. The alternating light and dark layers form as silica is deposited in rhythmic patterns within cavities of volcanic rock, resulting in unique striping in every piece. Why Youll Love This Material: Banded agate (chalcedony, SiO) Size: Approximately 2 3 inches Appearance: Polished skull with parallel or curved bands in tones from white and gray to deep