Polished Marble is simple.
Method
Take a long haired continental swiffer type flat mop and spray with Molt Net Spray and allow to dry.
Swiffer floor and finish at door then brush off swiffer.
Capful of pH Neutral cleaner in Kentucky Mop Bucket and mop
Allow to dry naturally and then buff to lustre with swiffer mop (no spray this time)
Never vacuum or sweep Polished marble floors!!!
To find out how well they are sealed do a water drop test. If the water beads well it is sealed if it pools it needs sealing.
The best product to clean quarry tile & ceramic tiles is a high alkaline cleaner. I use Aqua Mix Heavy Duty Tile & Grout Cleaner or Aqua Seal XTreme Clean.
Kev Martin
Marble Life