Can you identify this Cave Stone?

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Offline dukme

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Can you identify this Cave Stone?
« on: 13/02/2015 15:03:01 »
Hi, does anyone know the name of the attached stone taken from a ocean cave?  I'm not sure if this is a plant of some sort or an actual stone shaped by ocean water over time.  Please go here to see photos newbielink:http://www.reef.org/node/10116 [nonactive]

Thank you.
« Last Edit: 16/02/2015 09:58:12 by Georgia »

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Offline Bill S

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Re: Can you identify this Cave Stone?
« Reply #1 on: 22/02/2015 19:06:33 »
Hi Dukme, welcome,

Whatever it is, it's a beauty!

My first thought would be to acid test it for calcite/aragonite.
There never was nothing.

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Offline dukme

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Re: Can you identify this Cave Stone?
« Reply #2 on: 26/02/2015 13:51:21 »
Thanks Bill S for the help.  I've been searching on the internet and all indicators point to calcite/aragonite, as you stated.