I've got it by mining on the mine piont +1.
you talk so much crap, you cant get pure crystals by mining in +1 and you haven't completed the game, you dont have to lie on a forum.
lol ino every1 is askin this but 2 get the monster bone+ iv ried the 3 star capture a kutku n dun it 3 times bt i havent seen a SINGLE MONSTER BONE + !!!!
its the four star quest you have to do not the three star, but you dont have to catch a kutku you can do any four star quest, do the land shark, its pis easy so you shouldn't have any problems, you may wana take some sonic bombs though if you dont have experience in killing cephadromes or plesioths