This is an example of grout being pressed back up onto the tile surface by water pressure from under the tile. The wet and drying cycle is causing the surface of the tile to disintegrate. This is referred to as spalling.

Harry Edenfield owns Restoration by Fabric & Tile Masters in Jacksonville Florida. Harry also authors [...]

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These are some detail before and after colorsealing pictures of a bank we recently did. We cleaned the tile as best we could, but the need for colorsealing was obvious.

Harry Edenfield owns Restoration by Fabric & Tile Masters in Jacksonville Florida. Harry also authors the blog http://fabricmasters.com/blog, where he offers information on a variety [...]

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We seal grout on two occasions: after we finish cleaning a tile floor, and after a new floor is installed.
This is the important final step that provides the following: a level of oil and water repelency. If you spill some mustard on the tile, and you stop what you are doing and wipe it up, [...]

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This is a video, produced by Sally Edenfield, in which she shows a honing grit progression on a 12×12 from 100-400g. The marble is Breccia Oniciata.
Production values were low due primarly to director shortcuts.
These dry diamonds are unique in that they only work on stone other than true geological marble. If you are honing a [...]

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This is a copy of the file that mentions MB12 polishing powder will work after a 200 grit honing cut on most marbles. If you click on the image it will enlarge so you can see the highlighted text.

Harry Edenfield owns Restoration by Fabric & Tile Masters in Jacksonville Florida. Harry also authors the blog [...]

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These are the same piece of absolute black granite. Front and back.
http://fabricmasters.com/chemicals/?p=5

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Fast Tube by Casper
We are often called on to refinish stone flooring. One of the simplest and most effective ways to return a floor to its natural look is by using abrasive honing powder or honing brushes. We typically follow this procedure with a sealer application. This article pertains to stone that is hone finish [...]

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Terrazzo  is a floor that is a combination of poured portland cement (sometimes colored) and marble chips. The portland is referred to as matrix. The mixture is poured into a metal grid. This T shaped grid will act as an expansion joint, give the installer a guide to pour to, and provides a limit to [...]

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