Shower Tile Deposit!

[Frankie81]

Hello all,
I have a relatively new bathroom shower, however I recently have these hard orange/white hard deposits on the tile and grout that remain moist even when the rest of the shower is dry. How to I go about cleaning and getting rid of these?

 

[Jadnashua]

Did you (they?) use mastic to install the tile, or was a thinset mortar used?

The orange color may be a type of mold. It's quite slippery and tougher to get rid of.