Beautiful! You are doing the right thing by looking at all the samples together, hopefully in the space where they will be installed. Your gorgeous countertop is definitely the star, and the simple glass tile will allow it to shine. Since every monitor shows color differently, it can be difficult to see if the tile is picking up some nuance in the quartzite, but on my computer it looks great and I love it with the navy island. Good luck with your project!
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Potential Layout
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