If your marble floors or countertops are looking a bit lackluster, chances are they're begging for a cleaning.
Then again, those streaks or that surface film could instead signal that you've actually over cleaned the surface, using too much soap.
Yes, the results of over cleaning and under cleaning this stone surface are roughly the same. Either way the solution is the same, too - you'll need polish them.
The important thing is this: Follow the marble polishing product's directions to the letter, using neither too little nor too much of the cleaner.
Or, if you'd like to just get back to square one, call in a professional stone craftsman who can republish (and reseal if necessary) for you. And in the future, keep these marble cleaning and care tips in mind: