Hi Ichigo,
And welcome. Sir Quack's link is interesting reading, and as you'll learn, for bass traps to be effective at low frequencies, they tend to be large and somewhat unwieldy. Keep in mind that for listening rooms, a mix of absorbent and reflective surfaces tends to work best, so don't get carried away in overtreating your room.
In my travels as a former audio/video magazine editor to different countries, both Japan and the UK are home to quite a few very eccentric and unscientific views of audio reproduction. I've not come across the marble tile idea, but it makes no sense in terms of the physics of acoustics, so I would ignore it. This isn't to say that the USA is free of audio craziness and nutty tweak notions!
Regards,
Alan
