Results 21 to 24 of 24
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03-19-2012, 04:19 AM #21
Just wanted to show ya what i worked on this weekend Tim. This one wasn't as uniform in color as I wanted but it seems to work pretty good, but this was the biggest piece I could find at the moment. It's pretty darn hard for siltstone, spent several hours lapping it and I'm not quite done yet.
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03-19-2012, 04:25 AM #22
- Join Date
- Apr 2008
- Location
- Saint Paul, Minnesota, United States
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- 2,944
Thanked: 433There's old slate mines south of Duluth, I'm going up there sometime this spring/summer and check it out
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03-19-2012, 04:38 AM #23
- Join Date
- Nov 2009
- Location
- Middle of nowhere, Minnesota
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Thanked: 1371
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03-19-2012, 04:48 AM #24
- Join Date
- Apr 2008
- Location
- Saint Paul, Minnesota, United States
- Posts
- 2,944
Thanked: 433Sure!!
For those in MN here's the geology map of MN http://www.lakesuperiorstreams.org/u...eology_map.pdf