Search results for query: *

Ahhh, so you mean that they use them as chocks. That's different. I'd still drop some acid on it and see what happens, but if it's not fizzing I'm with Darrel on the granite.

The use as brake pads. It's an old school use of limestone. That and it looked like limestone when I first looked at it. Personally I'm a fan of limescale cleaner if you really want to be sure what something is. Less doubt about the fizz.

Almost certainly limestone then. Will be fine in a hard water tank like a malawi set up but will slowly dissolve in anything softer, and will mess with water chemistry. It's doable, but that's a large rock for surface area. Not as bad as a substrate for messing with chemistry but not good in a...

Texture wise it's a lovely stone. What is it? I'm trying to work out if that's a limestone.

Looking forward to it.