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Burnishing is caused by using the stone - i.e. by the razor on the stone.
Using a conditioning stone - or a slurry stone - or a nagura - should remove the burnishing.

1. As already noted, shiny spots on a Thuringian can be glazing/burnishing. That is good on an Chinese 12K, an Arkie or a Charnley Forrest, but not on a Thuri. The conditioning stone may be...