Spiral Necklace Pendant 3D print model

Spiral shape necklace ready for 3D print, designed with chain or rope hole.

Spiral petroglyphs have appeared in ancient cultures throughout the world. ... Spirals are in fact a mathematical pattern that occurs in both plants and animals. This pattern is called the Fibonacci sequence— or the so-called golden spiral. A Fibonacci sequence represents geometric growth around and outward from a center.