about Mines: yours or theirs ?

hi guys, I want to ask about Mines:
if both teams "your team and their team" have mines, and mines are everywhere in the map, and you found a mine in front of you, is their a way to know by looking at that mine if it is yours or theirs? I mean to know if it is safe to pass throw it or not ???
btw I'm level 25 right now and this question always comes to my mind. appreciate any answer

 

You can't know that because they have the same color,unless you got good memory

 

There's no way to say which team's mine it is and that is the point of it so you can't just go there like "hey this is our mine so it's safe". Mines being unidentified is the key of mine usage so to say

Good memory doesn't even help if enemy team throws a mine right on your mine or replaces yours after it detonates itself after certain time limit (yes, mines has time limits as well and will blow up by themselves if not run into them)