It's Mineral Blue. They only made 2000 of them and only in the 2001 model year. The only other person that I knew of that had one was SnowChaser, sadly, his was totaled recently. I think I am the only one who frequents Xterra forums with a Mineral Blue Xterra. I saw one on Youtube and one in person around town, but that is all I have seen this color.
I rarely get to game on my 360 anymore, let alone my pc.