Sandstone?

[ibanezfrelon]

I have colected some sandstone rocks that look quite nice and i would like to use it in a scape, so i wonder how does sandstone behave in the acid , co2 filled water?
I would hate it if it would fall apart 2 month after setting up a scape...
Anyone used it?

 

[dw1305]

Hi all,
It should be fine, but you never quite know with sandstone, because the matrix "cement", that holds the sand grains together may have some amount of calcite (CaCO3) in it, in which case it may crumble in the water. If the rock itself is very hard? you can be pretty certain it would be inert and won't disintegrate. <http://www.tulane.edu/~sanelson/geol212/sandst&cong.htm>

Cheers Darrel

 

[ibanezfrelon]

Hi Darrel!
Thanx for your input!

I'm afraid this stones are not very hard.. ..they are quite crumbly..
I guess , maybe i'd better try them out in a bucket or something..

 

[a1Matt]

+1 for what Darrel said.
As a rule of thumb I never put any rock that crumbles into a tank.

 

[bigmatt]

pity - they look great! Let us know how the bucket experiment works! Matt

 

[sanj]

Wont sandstone play havoc with eater chemistry...I mean hardening the water significantly? Hmm maybe actually that would be Limestone. I was just thinking about the Oolitic limestone around Peterborough, which also has quite hard water.

 

[Garuf]

It certainly does where I'm from, Hollington, all sandstone quarries there and the water used to come out the tap at 9. extremely hard water, a kettle would scale up in a week.