Possoms Posted September 6, 2017 Share Posted September 6, 2017 My son was up in St. Ignace, Upper Michigan when he seen this rock shining in about two foot of water off shore. He knows how I loves rocks and thought it be a good surprise for me. Boy it sure is and was.. Closely looking at it I found it was covered in tiny eggs. Size is a small metal BB. There are even eggs hidden in the cracks and holes of the rock. I have posted a few pics of it. The rock is about 2'x1 1/2' in size. At least a 1000 eggs or more can be seen. There even looks like a foot print where eggs have been laid in. If you know what these are, I sure would love to know so I can tell my grandkids the story of their daddy's great rock find.. Thank you ever much for looking.. Possoms Link to comment Share on other sites More sharing options...
Kane Posted September 6, 2017 Share Posted September 6, 2017 Welcome to the forum. I think what you have here isn't eggs, but mineralization. In limestone you can encounter some very nice calcite crystals and interesting shapes! ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Possoms Posted September 6, 2017 Author Share Posted September 6, 2017 Oh thank you.... I shall research this.. Thanks Link to comment Share on other sites More sharing options...
PFOOLEY Posted September 6, 2017 Share Posted September 6, 2017 1 minute ago, Kane said: ...but mineralization... Perhaps something like Druzy Quartz. 1 "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
Kane Posted September 6, 2017 Share Posted September 6, 2017 Even better than finding something interesting is the prospect of learning! I wonder if this document might be helpful as it does discuss the geology of Michigan written in a non-specialist language: http://custom.cengage.com/regional_geology.bak/data/Geo_Michigan_Watermarked.pdf ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Bullsnake Posted September 6, 2017 Share Posted September 6, 2017 Maybe oolites? Steve Link to comment Share on other sites More sharing options...
Ludwigia Posted September 6, 2017 Share Posted September 6, 2017 The forms in the third photo look like favosite coral. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Miocene_Mason Posted September 6, 2017 Share Posted September 6, 2017 Keep vinegar away or acidic water away from it, those calcite crystals and the limestone as well will dissolve. They are very pretty little crystals. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Ludwigia Posted September 6, 2017 Share Posted September 6, 2017 I think I was crossing my eyes when I looked at pic 3 and saw an optical illusion.Sometimes a positive looks like a negative in 2 dimensions, but now I can see that those are 3-dimensional crystals. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
abyssunder Posted September 6, 2017 Share Posted September 6, 2017 Pictures are a bit blurry, so the details are not clearly visible. I'll go with botryoidal calcite for the "eggs" (pic 3). The "eggs" from the vug (pic 2) might be of botryoidal chalcedony. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Possoms Posted September 7, 2017 Author Share Posted September 7, 2017 18 hours ago, Kane said: Even better than finding something interesting is the prospect of learning! I wonder if this document might be helpful as it does discuss the geology of Michigan written in a non-specialist language: http://custom.cengage.com/regional_geology.bak/data/Geo_Michigan_Watermarked.pdf Thank you very much, this will be very helpful.. Lake Huron has lot of nice things to find.. Link to comment Share on other sites More sharing options...
Possoms Posted September 7, 2017 Author Share Posted September 7, 2017 15 hours ago, Ludwigia said: I think I was crossing my eyes when I looked at pic 3 and saw an optical illusion.Sometimes a positive looks like a negative in 2 dimensions, but now I can see that those are 3-dimensional crystals. Yes, they are 3D, very bumpy. I shall get new pics for you. Link to comment Share on other sites More sharing options...
Possoms Posted September 7, 2017 Author Share Posted September 7, 2017 Thank you for all your answers.. Very helpful. I am a fish collector and I have a few fish that lays eggs like this. That what made me think fish eggs. This was great fun learning something new. My brain always hungers for more knowledge. I do love the crystals growing in the holes... This rock makes a great show piece in my fish room... On a shelve, not in a tank.. Link to comment Share on other sites More sharing options...
abyssunder Posted September 7, 2017 Share Posted September 7, 2017 This one looks pretty close to a favositid coral, like Pleurodictyum . " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
westcoast Posted September 7, 2017 Share Posted September 7, 2017 23 hours ago, Ludwigia said: The forms in the third photo look like favosite coral. Yes looks like coral Link to comment Share on other sites More sharing options...
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