Pink Upper Peninsula Mystery Rock

[Beaglejuice13]

Found in the U.P. in Keenewah County, MI. It's beach-worn in found condition. It weighs 1lb 9oz and is approx 6" long. Pictured wet to show off the lines. Any guesses?

 

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[Beaglejuice13]

I think I found it. I believe it's beach-worn kona dolamite

 

[Eu_citzen]

Sandstone I think.

 

[Beaglejuice13]

What do you think about this...I was looking up sandstone photos and ran across this pink fossil from northern Michigan, where my rock was found....maybe?

 

[stdenis_jd]

Kona Dolomite is made from stromatolite formations, the color comes from iron. Should check hardness, Kona is about a 4, sandstone would be 6 - 7