Petosky stones are both stones and fossils of rugose coral. The stones were formed as a result of glaciation, and are mostly found In Michigan. It is the state stone of Michigan.
You can see the hexagonal coral fossils when the stones are polished.
Jane Reiter, who lives in Michigan was a guest contributor to the weekly challenge at I am the Diva.
She asted us to use the idea of the stones to tangle a tile.
I started with a hexagonal grid, which neatly divided into six triangles. To make the radiating kines I used an 08 pen make the hexagons, then turned each hexagon into the tangle Gneiss.. As I made gneiss in each hexagon, it made more of them in between. The tile looks like a fragment, though it began as a radiating gneiss.
I have been tangling since 2015. I found out about Zentangle from a colleague who had taken a class. Unfortunately, the person with whom they took the class, lived a considerable distance from me. Searching the Zentangle Website I found a Certified Zentangle Teacher much closer to me. After classes with her, for the best part of a year. She showed me that this was an art form I could feel comfortable with and find the creativity that I didn't think was there. The rest they say is history. In April 2017, I traveled to Providence RI to attend the training to become a certified Zentangle Teacher (CZT). I am privileged to be CZT 26.