Mica Rock ok for fish tank?

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AquataHolic420

Fire Eel
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Sep 20, 2006
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Neeeew Hampshaaa
I got some really sweet pieces of mica rock, like mover foot long i was wondering if Mica(the usually shiny, transparent lil pieces in granite) was ok for a fish tank... please answer quik

thanks-josh:nilly:
 
I don't see a problem with it unless you are a neat freak. The fish picking at it will cause tiny pieces of glitter in your tank. I would think of it as an asset.
 
Howdy Josh,

As you said yourself, mica is one of the three components of granite. I have granit rocks in my tank, no problem. Must make sure you do not have any traces of pyrite in it!!!

HarleyK
 
HarleyK;549191; said:
...Must make sure you do not have any traces of pyrite in it!!!

HarleyK

Oooo....good point. Fools gold :D is an iron oxide product, right? I don't remember the chemical name of it.
 
HarleyK;549191; said:
Howdy Josh,

Must make sure you do not have any traces of pyrite in it!!!

HarleyK

Do you know where the mica specimen was collected? Mid-west mica matrix pieces may contain any/all of the following: galena, pyrite, molybdenum, lead, manganese, arsenic, copper sulfate, and asbestos.
Pieces from the east coast can contain, molybdenum, lead, chalcopyrite (copper-iron sulfite), and arsenic.

Mica shyst non-matrix pieces may contain small pieces of iron but, if not in surrounding matrix, should be fine in your tank.
 
Since you quoted my post: My granite is from the area around Pisgah National Forest, NC. I have had the rocks for over a year now, w/o problems.

HarleyK
 
I'd question this rock myself, I remember reading once that any rock that would fizzle with acid (i think it was acid we used in science class) is supposedly capable of leaking stuff into the tank, and if I'm correct i think this is one of those rocks that did fizzle when we scratched it and put the chemical on....
 
Rocks that fizzle with acid contain carbonates and simply harden your water over time.
 
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