The typical color variation of sandstone used for cobblestone is gray, speckled black/white and pink. … The alkali feldspar is what gives a distinctive pink color, and the amount of crystals add to the speckled appearance.
The typical color variation of sandstone used for cobblestone is gray, speckled black/white and pink. … The alkali feldspar is what gives a distinctive pink color, and the amount of crystals add to the speckled appearance.
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