Originally Posted by
111Nathaniel
I've heard of novaculite. Actually i thought i found garnets in that sandstone but they were K-seldspar crystals coated in oxydized iron...I wasn't thinking of slate because it is the metamophized shale but during metamorphism the crystals i'm looking for may form which never occured to me, so i'll take a look at the slate nearby. I did some research on the Belgium Coticule with my lab instructor, It was originally a mudstone that undergone particial metamophism becoming a "shist" causing the stone to grow microscopic garnets, in order for that to happen theres a very narrow margin of forces that must be present, thats why there's so little of it occuring naturally.