Glass damage from ceramic tile dust

[indgepr]

I have been cutting quarry tiles outside with a diamond wet saw. i didn't notice but the spray went onto a glass patio door. when i tried to clean off the black dots a few days later i couldn't shift it and on closer inspection it appears that the glass is damaged. Is this a known consequence? any ideas on how to clean up ? I have tried scrubbing and scraping but it just reduces the roughness but doesn't change the appearance

 

[Dan]

Can you supply an image for this?
(Sorry for delay in replying)

 

[Ben-gee]

19 months later, do you think there’s much point?