What is the difference between the Cool & Warm side of Mineral Foundation ? And when do you use each one ?

here's just one way to tell:


----cool tones look better wearing silver jewelery


----warm tones look better with gold jewelery





i am neutral... niether warm or cool... that's why i can't find a match with MAC foundations because they only come in warm or coldWhat is the difference between the Cool %26amp; Warm side of Mineral Foundation ? And when do you use each one ?
Cool tones are usually those with pinkish undertones to their skin, and Warmer are more yellow and olive based.What is the difference between the Cool %26amp; Warm side of Mineral Foundation ? And when do you use each one ?
http://www.youtube.com/watch?v=2zqW6UimWuc%26amp;feature=channel


http://www.youtube.com/watch?v=ZMRpENyBd6A%26amp;feature=channel