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What is this rock I found in Lakw Huron?

 
 
Mandieb
 
Reply Sat 17 Aug, 2013 05:17 pm
I found a rock slab on the shore of Lake Huron. The outter layer has dark aqua spots. On the inside it is smooth and looks like white glass with lines of aqua and purple through it.
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Type: Question • Score: 7 • Views: 1,759 • Replies: 18
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dalehileman
 
  0  
Reply Sat 17 Aug, 2013 06:47 pm
@Mandieb,
Man you have to send us a snapshot
rosborne979
 
  2  
Reply Sat 17 Aug, 2013 07:27 pm
@Mandieb,
Dale's right, we're gonna need a photo in order to help with the identification. Try to provide a large scale and close-up perspective with something like a coin for a frame of reference. Then we should be able to help. Thanks.
Mandieb
 
  1  
Reply Sat 17 Aug, 2013 08:42 pm
@rosborne979,
How do I send a snapshot on here?
ehBeth
 
  1  
Reply Sat 17 Aug, 2013 08:45 pm
@Mandieb,
Step 1. Do you have a photo of the rock loaded on your computer?
Mandieb
 
  1  
Reply Sat 17 Aug, 2013 08:50 pm
@ehBeth,
I won't have a computer till Monday. I have my iPhone.
0 Replies
 
Mandieb
 
  1  
Reply Sat 17 Aug, 2013 09:19 pm
@dalehileman,
http://twitter.com/Mandie_B/status/368933538621448197/photo/1
Mandieb
 
  1  
Reply Sat 17 Aug, 2013 09:28 pm
@rosborne979,
@Mandie_B: http://t.co/vo3IEmCxeu
Mandieb
 
  1  
Reply Sat 17 Aug, 2013 09:31 pm
@dalehileman,
@Mandie_B: http://t.co/fDHOguDdK8
mesquite
 
  1  
Reply Sat 17 Aug, 2013 11:17 pm
@Mandieb,
It looks like a slab of agate that has been cut with a diamond rock saw.

Farmerman will probably be along soon to give you more information.
roger
 
  1  
Reply Sun 18 Aug, 2013 01:37 am
@mesquite,
Certainly does. I would be surprised to learn that that was its appearance when found in a natural state.
0 Replies
 
Mandieb
 
  1  
Reply Sun 18 Aug, 2013 04:47 am
@mesquite,
Cool, glad to get some kind of answer. My husband was freaked out when he found it as was I. Here we are walking along the shore for some cool stones to take home as souvenirs. When he first spotted it he thought it was a piece of glass.
0 Replies
 
rosborne979
 
  2  
Reply Sun 18 Aug, 2013 05:11 am
@Mandieb,
Mandieb wrote:


To me it looks like a Slice from a Geode. Here's another example of a Geode Slice:
http://smli.org/blog/wp-content/uploads/2008/11/geode.jpg

A lot of geodes are hollow and people slice them to see the crystals inside. But some geodes are solid and sometimes people slice off the ends of them just for show.
Mandieb
 
  1  
Reply Sun 18 Aug, 2013 05:18 am
@rosborne979,
The color I very similar to mine
rosborne979
 
  1  
Reply Sun 18 Aug, 2013 05:29 am
@Mandieb,
Mandieb wrote:
The color I very similar to mine

Yours also has an inclusion in it which is similar to the edge of a hollow spot, or to a filled in hollow spot. Yours lacks some of the striations of a full blow Geode, but some are like that. Also it could be an edge piece with little variation (which may be why it was discarded).

Farmerman will know more. He's the resident expert on this type of thing.
Mandieb
 
  1  
Reply Sun 18 Aug, 2013 06:24 am
@rosborne979,
It is an end piece. So that would make [email protected]_B: http://t.co/zl7dRkdx1Q here is a pic of the other side
0 Replies
 
dalehileman
 
  1  
Reply Sun 18 Aug, 2013 11:52 am
@Mandieb,
Man, per Mesq sure does look like a slab of chalcedony/agate
Mandieb
 
  1  
Reply Mon 19 Aug, 2013 04:11 pm
@dalehileman,
Thanks Smile I am doing some reading and looking up pics online. I appreciate all the help! I am curious though to know how it got on shore being its such a smooth cut.
dalehileman
 
  1  
Reply Tue 20 Aug, 2013 10:21 am
@Mandieb,
Quote:
…..curious though to know how it got on shore…..
Man, me too
0 Replies
 
 

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