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Jordi Fabre
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Location: Barcelona
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Posted: Oct 08, 2010 16:53 Post subject: A mineralogical trip through the states of USA - Louisiana |
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Louisiana the "Bayou State"
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Boracite (note phantom) Venice Salt Dome, Venice, Louisiana, USA About 1 mm on edge.
Theorically Louisiana is poor in minerals. Pete Richards proves the oposite with these excellent photographs. Thanks Pete! |
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Chambersite Venice Salt Dome, Venice, Louisiana, USA About 2 mm on edge. Photo: Pete Richards |
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Chambersite Surface texture probably reflects complex twinning by structural inversion as it cooled. Venice Salt Dome, Venice, Louisiana, USA About 2 mm on edge. Photo: Pete Richards |
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rweaver
Joined: 13 Apr 2009
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Location: Ridgecrest, California
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Posted: Oct 08, 2010 18:06 Post subject: Re: A mineralogical trip through the states of USA - Louisiana |
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Chambersite, Venice. Former Collection of Carlton Davis.
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Chambersite Venice Salt Dome, Venice, Louisiana, USA 6mm on a side |
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Pete Richards
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Location: Northeast Ohio
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Posted: Oct 08, 2010 18:20 Post subject: Re: A mineralogical trip through the states of USA - Louisiana |
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If I have the story approximately right, Venice is located on a salt dome somewhat out in the Gulf of Mexico at the end of the Mississippi River. They pumped water down into the dome to recover brine for making salt (again). Fred Pough visited the area, perhaps in the 1950's, and took samples of insoluble minerals that were flushed up into the brine ponds with the brine. In one locality, or perhaps more, he collected bags full of these small crystals of chambersite and boracite. I was fortunate to acquire a couple of dozen crystals of chambersite and a half dozen boracite crystals.
Interesting how something that at one point in time and space was probably available by the kilograms and tens of millions of individuals now is an uncommon micromineral from that find!
Pete Richards
_________________ Collecting and studying crystals with interesting habits, twinning, and epitaxy |
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Darren
Joined: 09 Aug 2009
Posts: 91
Location: New Mexico
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Posted: Oct 08, 2010 21:19 Post subject: Re: A mineralogical trip through the states of USA - Louisiana |
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Well, those are truly spectacular! I was curious as to what would be posted when Louisiana came up - thanks for the lesson!
Darren
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Pete Richards
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Posted: Oct 12, 2010 11:16 Post subject: Re: A mineralogical trip through the states of USA - Louisiana |
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Pete Richards wrote: | ... Fred Pough visited the area, perhaps in the 1950's, and took samples of insoluble minerals that were flushed up into the brine ponds with the brine....
Pete Richards |
According to Skip Simmons and Al Falster at U. New Orleans, it was Fred Pough, but the year was 1969. Apparently a hurricane later wiped out the locality.
Pete
_________________ Collecting and studying crystals with interesting habits, twinning, and epitaxy |
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Jordi Fabre
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Posted: Dec 23, 2011 02:51 Post subject: Re: A mineralogical trip through the states of USA - Louisiana |
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Jeff Scovil comes again to our aid and he supplied one of his fine images for Louisiana
Thank you Jeff!
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Chambersite Venice Salt Dome, Venice, Louisiana, USA About 5 mm. on edge Photo: Jeff Scovil |
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Jordi Fabre
Overall coordinator of the Forum
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Location: Barcelona
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Posted: Dec 23, 2011 10:49 Post subject: Re: A mineralogical trip through the states of USA - Louisiana |
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Jeff Scovil wrote: |
The chambersite crystals in my photo were the ones that Fred Pough collected. I shot them at his house in 1995 on that terrible background at his request.
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