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Jorgy
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Anyone know what this is?
Jan 3rd, 2018 at 5:10pm
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Not really a rock hound but found this about 15+ years ago while hiking and thought it looked pretty neat so I kept it. Used it as a paper weight on my desk for a few years till I downsized my desk and it got put up and forgot about. Re-found it about a month ago and thought it would be nice to see if I could find out what it might be. Size is between a baseball and a softball. So my question is..What is it?

Thanks for any help you can provide.
  

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Scott LaBorde
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Re: Anyone know what this is?
Reply #1 - Jan 4th, 2018 at 9:22am
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Hi Jorgy. This looks to be a mass of inner grown calcite or quartz crystals.  If you can easily scratch those crystals with something sharp and metallic it's calcite.  If you can't scratch it easily it's quartz. Nice find. If you could go back to where you found it you would probably find more and potentially better specimens.   Wink
« Last Edit: Jan 9th, 2018 at 1:18pm by Scott LaBorde »  

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Jorgy
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Re: Anyone know what this is?
Reply #2 - Jan 6th, 2018 at 3:52am
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Thanks Scott.
Been so long since I found it I really don't remember exactly where I found it. Back then I went hiking a lot and used to pick up quite a few neat looking rocks for my granddaughter when she was young. Kept a few of the nicer looking ones for myself but never bothered to id them.
  
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Tim4d
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Re: Anyone know what this is?
Reply #3 - Jan 9th, 2018 at 12:45pm
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Interesting.  If there is such a thing, it looks like sort of a concretion-of-crystals that grew around the brown "seed" in the center and mashed together when growth filled a vug.  I wonder what the brown bits are.  Hematite?
  
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JoeM
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Re: Anyone know what this is?
Reply #4 - Jan 9th, 2018 at 5:41pm
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Yes, I was looking at all that "brown" too, tim.
I've seen the radiating circular crystal pattern around some sort of "clast" quite a bit in this area. The brown "rind" is interesting and "may" help to ID the source. I wonder if the rind is the same as the clasts? I would guess the "faces" on the clast in the first pic are negative impressions of crystal growth surrounding it and not actual crystal faces.
It's a "glob" of crystals in a high iron area all right! It would be interesting to know how, when and where it formed.
  
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