At our shop we have decomposed granite on the back porch, every night on the concrete where it’s close to the granite a line of crystal like powder forms…. What the heck is this??
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Originally posted by Quackerbox View PostHas anyone mentioned efflorescence?
efflorescence is the migration of a salt to the surface of a porous material, where it forms a coating. The essential process involves the dissolving of an internally held salt in water, or occasionally in another solvent.
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