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Sand

 
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soldevilla



Joined: 16 Dec 2010
Posts: 550
Location: Barcelona, more or less

PostPosted: Mon Jun 17, 2019 2:15 am    Post subject: Sand Reply with quote

A friend has given me a small bag of river sand of a suspicious reddish color. Once examined in the microscope and separated some grains, we have some pretty almandine garnets.

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Pau
Site Admin


Joined: 20 Jan 2010
Posts: 4790
Location: Valencia, Spain

PostPosted: Mon Jun 17, 2019 3:36 am    Post subject: Reply with quote

Nice find and image!
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Pau


Last edited by Pau on Mon Jun 17, 2019 8:29 am; edited 1 time in total
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Geopressure



Joined: 26 Mar 2017
Posts: 63
Location: Nashville, TN

PostPosted: Mon Jun 17, 2019 8:23 am    Post subject: Reply with quote

Pretty!
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Smokedaddy



Joined: 07 Oct 2006
Posts: 1406
Location: Phoenix, Arizona

PostPosted: Mon Jun 17, 2019 4:16 pm    Post subject: Reply with quote

Excellent find.
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Lou Jost



Joined: 04 Sep 2015
Posts: 3614
Location: Ecuador

PostPosted: Mon Jun 17, 2019 5:23 pm    Post subject: Reply with quote

Wow! What a surprise! Was this regular river sand with a few rare crystals that you separated, or was it mostly crystals? I never knew that river sand could have such nice unweathered crystals.
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Scarodactyl



Joined: 14 Apr 2018
Posts: 164

PostPosted: Mon Jun 17, 2019 6:26 pm    Post subject: Reply with quote

These must be pretty close to the source rock. Garnet isn't super soft but it rounds out pretty well with a bit of alluvial action.
Absolutely gorgeous photos. I need to try this some time.
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nanometer



Joined: 30 Apr 2016
Posts: 253
Location: Tucson, AZ

PostPosted: Tue Jun 18, 2019 7:23 pm    Post subject: Reply with quote

These are very neat--and great image!
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soldevilla



Joined: 16 Dec 2010
Posts: 550
Location: Barcelona, more or less

PostPosted: Wed Jun 19, 2019 2:14 pm    Post subject: Reply with quote

Lou Jost wrote:
Wow! What a surprise! Was this regular river sand with a few rare crystals that you separated, or was it mostly crystals? I never knew that river sand could have such nice unweathered crystals.


Maybe the 70% of the sand are garnets. But I have separated a few good crystals. There were many fragments there.
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Lou Jost



Joined: 04 Sep 2015
Posts: 3614
Location: Ecuador

PostPosted: Wed Jun 19, 2019 2:31 pm    Post subject: Reply with quote

I would love to find sand like that!
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