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enter image description hereenter image description here This rock was picked up this summer at High Rock in Keeweenaw Co. MI. I'm sure it's basalt, but is odd the aggregate when chipped is tan to white inside and contain a lot of tiny crystals. The reddish brown seems to be a coating holding it all together.A cut ground and polished image was added. enter image description hereenter image description here

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closed as off-topic by user12525, Erik, uhoh, Fred, Peter Jansson Sep 4 at 11:27

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions about rock identification requests are off-topic. For more information, see the announcement on meta." – Community, Erik, uhoh, Fred, Peter Jansson
If this question can be reworded to fit the rules in the help center, please edit the question.

  • $\begingroup$ Can you show a picture of how it looks from the inside? $\endgroup$ – Gimelist Dec 26 '18 at 10:30
  • $\begingroup$ I will cut it Tuesday and post a photo. $\endgroup$ – Shoop Dec 31 '18 at 0:28
  • $\begingroup$ I'M not sure why my photos are upside down. $\endgroup$ – Shoop Jan 2 at 0:55