Hydroge peroxide, 1 cup to 2 gallons, is what our pediatrician recommended for disinfectant that isn't harmful. It is safe for stone flooring.

Hi Ruby, here's a homemade recipe you can use to disinfect your stone floors - https://livesimply.me/homemade-floor-cleaner-multi-surface/

Hi Ruby. Here is an article that may help... https://www.granitegold.com/how-to-disinfect-natural-stone/

Hello. Is your stone sealed and or non porous?

http://lgsgranite.com/tips/why-is-stone-porous/

I use the lysol concentrate solution diluted in a bucket for my disinfectant mopping needs.

https://www.lysol.com/en/products/multi-purpose-cleaners/lysol-clean-fresh-multi-surface-cleaner-clean-fresh-lemon/

A word of caution I was using alcohol-based disinfectant and it bleached out the stone sealer on my stone fireplace hearth. Be careful of high alcohol content liquid cleaners even on sealed stone surfaces.

Commercial operations use Lysol.

If you didn’t get a result you wanted, I would use 3% hydrogen peroxide and it’s already diluted. Dollar stores have big bottles.

I use Clorox cleanup it works well eather put it in a picket with water or spray on the floor and wash with a damp mop it cleans very well and it sanitizes you could see that on the bottle.

Kill Germs with plain old Soap and Water

Combination products that promise to clean and disinfect typically leave streaks, and they can be harmful on granite, marble, travertine, and other types of natural stone. Instead, mix mild antibacterial dish soap with warm water and apply to the surface.

Check into this Hometalk post about caring for stone. It might give you some info. https://www.hometalk.com/37063154/q-how-to-clean-a-stone-floor

I second the hydrogen peroxide! I use it for everything including stone floors! Works great and completely safe for humans and animals!