Search on the forums for posts titled "my quartzite is staining" or similar, and you will find many people with these white marble-look quartzites that have the same problems.

When will the stoners stop selling this garbage?

Looks like you have front egde staining as well. Even if you can get the staining out there is a good chnace it will come back based on others experiences on gardenweb/Houzz.

@Joseph Corlette LLC stoners will stop selling when buyers stop buying. I still see people come on these forums asking about quartzite and have read the horror stories and they still go and buy this stuff.

This is a cancer in my industry and makes me sick.

According to everything I've read, that is a build up of dirt and grease that has penetrated the stone on the cut edge, where it probably isn't sealed. Even a "clean" wash cloth that's used for the counters will carry some contaminants in the water that can get into the stone over time. You may be able to use a poultice, repeatedly, to try to absorb the oil but it would require removing your range and working it along the cut edge. It's doubtful you could get it out completely but you might be able to lighten the stain so it's not as noticable. If so, seal the cut edge multiple times before putting the range back. Not guaranteed to work but it's your only option.

@Joseph Corlette LLC stoners will stop selling when buyers stop buying. I still see people come on these forums asking about quartzite and have read the horror stories and they still go and buy this stuff

There is quartzite and then there is quartzite. Mine is 5 years old without a single stain, etc. One really needs to do their research and test any stone they want to buy.

My sister bought what she was told was quartzite. Nope. It's marble and with the chipping, staining, etching etc that goes along with marble.

Bleach is generally not recommended for cleaning quartzite countertops, as it can damage the surface. Instead, try a stone-specific quartzite cleaner or a mixture of mild dish soap and water to clean the stains. Afterward, consider professional resealing for better stain resistance.

You can't seal your way out of this crap. Do you think these stained edges weren't sealed? Of course they were. Probably several times.

@cpartist You are correct. It is not all quartzite but many of the white ones such as mont blanc and white macabus seem to have these issues even when they are real quartzite.

@cpartist There are definitely real quartzites that can stain. Stone dealers or kitchen designers should explain to their clients that only highly crytallized quartzites are impervious. The fabricators need a better understanding of how to seal as well. All cut edges of the more porous quartzites must be sealed multiple times before installation.

Mine went from no stain to 3 inches of stain. So hopefully these don’t continue to grow. Ive called my supplier/fabricator again.

"All cut edges of the more porous quartzites must be sealed multiple times before installation."

This does not prevent edge damage.