Tony,
Yes, if it etches, it’s not quartzite. Probably a dolomitic marble or similar. Try taking it high in grit like you did but try polishing with Granite Polishing Powder Light, Granites Gloss, or a Tin Oxide or high grit calcined Alumina product.
Do a test to confirm then results and procedure before general application.
Good luck,
Bob

Sent from Bob Murrell's iPhone
M3 Technologies, Inc.
865-607-0957
Office 800-342-4533
www.go2m3.com

> On Jan 24, 2021, at 5:48 PM, Tony Deluna <tndeluna@gmail.com> wrote:
>
> Hey Pro’s I have this customer with a quartzite countertop.
>
> It’s marked up with grid pattern etching and runs from the storage yard before installation.
>
> It diamond hones like a marble and seems to be too soft to be a Quartzsite. I also noticed a few scratches. But no etching other than from before installation.
>
> I tried a wet and wet to dry polish with 4 different compounds.
>
> MB20, MB22, Dai-glo, majestic 5x.
>
> MB20 did very little & The others just made it more dull and raised the veins after 3,000.
>
> Then I took it to 8500 and tried Polishing with a bling pad.
>
> Still nothing.
>
> Any ideas?
>
> [cid:48B658CF-DAEC-4FE9-B2CA-11F42C3F9564][cid:6236BD99-A019-4E7A-BD26-6EDAB9FB1EB4]
>
> Tony DeLuna
> 925-625-9625
> www.PatriotStoneRestoration.com
>
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