How can I identify this stone?




I have two pumice stones. I took a picture. The one on the right works very well on my toilet bowls. It is very soft compared to the one on the left. Unfortunately, I do not know where I got the one that works very well. It is not has dense as the other one. If someone could identify the ‘good one’ maybe I could find it again. Thanks so much.

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pumice stones work great on the bottom of your feet.....
real pumice floats in water ; other products sold as pumice are sometimes ground up rock or sand molded into pumice type stones(?) don't know where or what kind you have but look up natural pumice when buying; one product that I've used that looks similar to yours light weight very porous looking, but I don't think it's actually pumice Pure Clean Kitchen & Bathrm Block get them at bed bath beyond https://www.bedbathandbeyond.com/store/product/pure-clean-bath-stone-cleaning-block/1013986010?skuId=13986010&&enginename=google&mcid=PS_googlepla_nonbrand_cleaning_online&product_id=13986010&adtype=pla&product_channel=online&adpos=1o1&creative=224122300524&device=c&matchtype=&network=g&mrkgadid=3140840207&mrkgcl=609&rkg_id=0&gclid=EAIaIQobChMIp_-EofaO4AIV1x6tBh3cVg-aEAQYASABEgL3Z_D_BwE&gclsrc=aw.ds
The soft one is cheaper at a dollar store or equivalent.
They have smaller pumice stones, that work great at the Dollar Store or .99 Cent Store.
As noted above, there are basically two 'types' of pumice stones. One is man made using a combination of a fine grit/sand material or plastic grit. The true pumice is made from lava rock, and therefore can be extremely hard or soft. The very had maybe more 'glass'like while some can be like a sandstone.
Hope that helps!