fvpty
noticing nice landscape pebbles
Member since July 2017
Posts: 95 
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Post by fvpty on Feb 27, 2018 21:23:01 GMT -5
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lookatthat
Cave Dweller 
Whatever there is to be found.
Member since May 2017
Posts: 1,360 
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Post by lookatthat on Feb 27, 2018 22:29:06 GMT -5
I don't know, but they sure are cool!
That does look like dogtooth calcite to me too.
Ideas for the weird ones with the arrows... creedite? Stilbite? Some odd form of celestite?
The crystal cluster under George's face looks like quartz.
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Feb 27, 2018 23:00:07 GMT -5
I agree that some of the crystals look like calcite. For the others, I'd look for minerals that form in association with calcite (there are many, including ankerite, aragonite, barite, barytocalcite, cerussite, chalcopyrite, dolomite, fluorite, galena, hematite, huntite, minrecordite, prehnite, pyrite, quartz, siderite, sphalerite, etc.). You may want to google calcite + panama + geology to see whether there are any books or papers describing your area.
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minerken
Cave Dweller
Member since August 2013
Posts: 466
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Post by minerken on Feb 27, 2018 23:09:26 GMT -5
it looks like there may be a mixture and would not be surprised if they are zeolites maybe mesolite and apophylite in fact the more I think about it I am more convienced
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fvpty
noticing nice landscape pebbles
Member since July 2017
Posts: 95
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Post by fvpty on Feb 27, 2018 23:28:07 GMT -5
I agree that some of the crystals look like calcite. For the others, I'd look for minerals that form in association with calcite (there are many, including ankerite, aragonite, barite, barytocalcite, cerussite, chalcopyrite, dolomite, fluorite, galena, hematite, huntite, minrecordite, prehnite, pyrite, quartz, siderite, sphalerite, etc.). You may want to google calcite + panama + geology to see whether there are any books or papers describing your area. Thats the problem not much info and specimens have a little bit of everything ... 🤯 |
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fvpty
noticing nice landscape pebbles
Member since July 2017
Posts: 95
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Post by fvpty on Feb 27, 2018 23:36:34 GMT -5
it looks like there may be a mixture and would not be surprised if they are zeolites maybe mesolite and apophylite in fact the more I think about it I am more convienced Agree on these 3 Apophyllite & Calcite & Stilbite ! But dosent react by (muriatic acid ) can these be posible ? |
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minerken
Cave Dweller
Member since August 2013
Posts: 466
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Post by minerken on Feb 28, 2018 0:11:28 GMT -5
if it doesn't react with the acid calcite is out stilbite is a very good possibility as it is another zeolite and many times when there is one there may be more it is very possible that all 3 i.e. apophylite, mesolite and stilbite may be present a bow tie structure is often associated with stilbite and there appears to be kind of a crude cluster in the last photo resembling one if there are any kind of radiating hairlike crystals they would be indicative of mesolite but these aren't really very good parameters to identify with just kind of genaralities and fairly common to the other crystal formations. With all the reflections it is hard to differentiate the actual crystal structures of the more drusy type specimens. Thats my story and I'm sticking to it  nice specimens BTW |
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fvpty
noticing nice landscape pebbles
Member since July 2017
Posts: 95
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Post by fvpty on Feb 28, 2018 8:00:02 GMT -5
if it doesn't react with the acid calcite is out stilbite is a very good possibility as it is another zeolite and many times when there is one there may be more it is very possible that all 3 i.e. apophylite, mesolite and stilbite may be present a bow tie structure is often associated with stilbite and there appears to be kind of a crude cluster in the last photo resembling one if there are any kind of radiating hairlike crystals they would be indicative of mesolite but these aren't really very good parameters to identify with just kind of genaralities and fairly common to the other crystal formations. With all the reflections it is hard to differentiate the actual crystal structures of the more drusy type specimens. Thats my story and I'm sticking to it nice specimens BTW Thanks for your comments It does have a super druzy gemmy shine at direct light at sun will up load a little short video. |
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nice specimens BTW
