Hi I have black marble floor tiles in my kitchen just looking for tips and what to use to keep them clean. They are down 11 years if I'm honest never mad on them as always look dirty. I got them professionally cleaned today and they look so dull now. I was planning on maybe getting lino down as got the kitchen sprayed. But I was hoping that if got them cleaned they would look better they don't 😠if anyone has black marble floor tiles please tell me what you use to clean them. Thanks