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What kind of rock am I ? volcanic with blue pockets
  
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Rockhound.newmexico




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PostPosted: Apr 16, 2018 20:52    Post subject: What kind of rock am I ? volcanic with blue pockets  

We have this rock all over new mexico but I've never seen this with the sky blue pockets, some are solid some are pockets of crystals (the bigger ones) I think my search would be over soon if I could remember what type of rock is the host rock. It cuts and polishes very nicely but again I have no idea what it is


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alfredo
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PostPosted: Apr 16, 2018 21:40    Post subject: Re: What kind of rock am I ? volcanic with blue pockets  

Celadonite: https://www.mindat.org/min-926.html
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Dale Hallmark




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PostPosted: Apr 16, 2018 21:55    Post subject: Re: What kind of rock am I ? volcanic with blue pockets  

I wouldn't think a hardness of 2 would polish very well.
I would have guessed a basaltic porphyry with secondary filling of chalcedony.
Dale
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Rockhound.newmexico




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PostPosted: Apr 16, 2018 21:58    Post subject: Re: What kind of rock am I ? volcanic with blue pockets  

Dale Hallmark wrote:
I wouldn't think a hardness of 2 would polish very well.
I would have guessed a basaltic porphyry with secondary filling of chalcedony.
Dale

This hardness is comparable with jasper or agate of this area
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Rockhound.newmexico




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PostPosted: Apr 16, 2018 22:02    Post subject: Re: What kind of rock am I ? volcanic with blue pockets  

alfredo wrote:
Celadonite: https://www.mindat.org/min-926.html

Looks almost identical but as I said in the other reply this is a hardness comparable with jasper or agate of the area also if it helps the bigger pockets have little like dogtoitge calcite crystals that react in shortwave uv
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Rockhound.newmexico




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PostPosted: Apr 16, 2018 22:18    Post subject: Re: What kind of rock am I ? volcanic with blue pockets  

The hardness like I said is what had me confused but upon more research of your suggestion I found this post too looks like it is, thanks alot problem solved
https://www.mindat.org/forum.php?read,11,407867,407903
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Pete Modreski
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PostPosted: Apr 17, 2018 11:03    Post subject: Re: What kind of rock am I ? volcanic with blue pockets  

There are combinations possible; these could be agate/chalcedony filling the vesicles, and then coated on their exterior with a thin layer of the blue-green celadonite. Always lots of possibilities, when it comes to minerals! Some of them might contain zeolite minerals, too.
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