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Norwegian jasper "puddingstones"
  
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Kara




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PostPosted: Sep 04, 2018 14:49    Post subject: Norwegian jasper "puddingstones"  

Some beautiful colourful conglomerates from Lappland Norway. I am thinking there are some red jasper and quartzites, but what is that blue material - chert? Can you spot something more?


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Pete Modreski
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PostPosted: Sep 04, 2018 15:07    Post subject: Re: Norwegian jasper "puddingstones"  

Very nice, Kara, I always appreciate neat looking "puddingstones". [The "jasper conglomerate" from Ontario is a favorite.] As to the bluish pebble--it's really kind of hard to be certain, what variety of quartz to call this, just from a photo. Yes, I'd say that probably "chert" is as good a name for it as any.

Pete
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jim hill




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PostPosted: Sep 04, 2018 15:56    Post subject: Re: Norwegian jasper "puddingstones"  

Pete Modreski wrote:
Very nice, Kara, I always appreciate neat looking "puddingstones". [The "jasper conglomerate" from Ontario is a favorite.] As to the bluish pebble--it's really kind of hard to be certain, what variety of quartz to call this, just from a photo. Yes, I'd say that probably "chert" is as good a name for it as any.

Pete
may I inquire as to what mineral/chemical produced the purples and pinks. thank you
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Pete Modreski
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PostPosted: Sep 04, 2018 17:57    Post subject: Re: Norwegian jasper "puddingstones"  

That can be a very complicated question, and maybe not with a clear answers. The shades of red and purple--inclusions of iron oxide (hematite). The bluish... who knows! (That's my answer.)
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