Monday, August 28, 2017

Weekly Challenge #331 - Guest Blogger Jane Reiter

Weekly Challenge #331: "Petoskey Stones in Michigan

About two million years ago, glacial action scraped the earth and spread Hexagonaria percarinata across the northern Lower Peninsula of Michigan.

 Hexagonaria percarinata consists of tightly packed, six-sided corallites, which are the skeletons of the once-living coral polyps. The center of each polyp was the mouth and contained tentacles that reached out for food.

The hexagon shape of each cell and thin lines radiating out from the dark “eye” in the center are distinguishing features unique to this fossil.  The prehistoric fossil is called the Petoskey Stone and is Michigan’s official state stone (est. 1965).  

For more information, see or

As a resident of Michigan since 2000, I love Petoskey stones and their patterning which inspires Zentangle® play!  I challenge you to interpret their patterning in your own unique way.  I have included eight tiles that display my version of this special fossil.

I began most of my tiles with a grid structure and then created the “eyes” secondly. I used a Pigma Pen 05 for tangling. No shading or color is included in my examples since there are limitless possibilities for personal preferences in this challenge.  Please contact me anytime with questions or feedback;, Jane Reiter, Artist on Facebook or  Have fun with your fossils!
This week's hashtags for social media are: #dc331 #iamthedivacztchallenge #petoskyfossils 

If you have a blog or host your images on line (like on Flickr or Picassa or Pinterest), add the site-specific URL where your tile is posted to the linkey machine below! Don't forget to link back here so that others can join in the fun! (if you don't know how to find this, you can see my half assed tutorial here) Also, please feel free to come back often and visit the links of those people on the linkey machine - don't forget to leave a comment or feedback, everyone loves feedback. ;) 

If you love the challenge as much as i do, please consider leaving a tip (tip jar in the side bar).  I write this blog for free and have no plans to make it a paid for service in the future.  Buy me a cup of coffee, or a new Micron pen!! Click the tip jar on the side for a monthly tip, but if you just wanna throw a few bucks my way THIS LINK will give you a one time option.    A very big thank you to those who have kept me in hot cups of joe. ;)


  1. For more on this subject, several years ago CZT Antonine Megger shared her petosky tangle Oskie on TanglePatterns:

  2. Fun, and new to me, challenge. Thanks, Jane!

  3. I just finished my tile and had a great time drawing it. Thanks for this challenge and also thanks for introducing those beautiful Petoskey stones to us.

  4. I'm so glad you were the guest host this week to introduce us to these lovely stones. I lived on the Ohio/Michigan border and the Windsor/Detroit border and never heard of them. Fun drawing them. Thank you Jane.

  5. I like the twist. I had fun. Thank you

  6. what a wonderful topic for the challenge, thanks so much Jane and Laura <3

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  8. This was fun!
    Laura, the hashtag should be 'petoskey' rather than 'petosky'. :)

  9. I really enjoyed this challenge and wish you all nice Holidays!

  10. I want a Petoskey stone! But while I wait, I'll continue to enjoy drawing them! Thanks for a fun challenge!

  11. This challenge was an eyeopener! Never heard of Petoskey stones! They are so beautiful! Thank´s for a fun challenge!


tangle me some zen, baby!!