This is a quartzite material - in this case it is the natural quartzite material - there are some fabricated materials that also use the tem quartzite, so be careful.
Homeowner chose it and had it delivered to Granite Tops in Mt. Vernon for fabrication. So, we don't know the exact name of this particular quartzite.
(Typically we do go with homeowners to stone vendors to help select a stone appropropriate for each project.)
You should check with your local stone vendors to see who has quartzite in stock for viewing and go take a look to see what you like. Good luck.
Hamlin Goldreyer Architects
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