Not to sure what tiles this is.
All i know is clay related....
>>962781
get a bunch of termites and put them to work on that
>>962781
It's very similar and probably asbestos.
https://www.google.co.uk/search?biw=1600&bih=755&tbm=isch&sa=1&q=armstrong+asbestos+tiles+cayuga+red&oq=armstrong+asbestos+tiles+cayuga+red&gs_l=img.3...15090.17492.0.17598.11.11.0.0.0.0.108.1020.1j9.10.0....0...1c.1.64.img..1.0.0.RWUOwXy2g_w
>>962781
Measure the tile.
It looks like 12"
If it is 12" it is a modern standard VCT tile, no asbestos.
About 1 cup of vinegar in a gallon of hot water and scrub that stain with #0000 steel wool
Stain, gone.
Reapply a liquid wax suitable for VCT tiles.