This could be a biological stain. I would start with a peroxide poultice

On Mon, Feb 5, 2018 at 11:53 PM, Stuart Rosen <mail@stoneshine.com> wrote:
Give us some background -tell us more
Seems to me moisture is somewhere in the mix

Sent from my iPhone

On Feb 5, 2018, at 9:21 PM, Stuart Young <santafefc@sbcglobal.net> wrote:

Does anyone know how to remove this bluish stain from marble countertop? Poultice?

Stuart
Santa Fe Floor Care

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