Metamorphic Rocksgreenspun.com : LUSENET : Introductory Geology, Oswego State : One Thread |
What metamorphic rock generally cantains the smallest crystals?
-- Shannon Davis (september_29_81@yahoo.com), March 27, 2001
Slates are the lowest grade of folited rocks. They are so fine grained that their individual minerals cannot be seen easily without a microscope. (Siever, Raymond page 176)
-- DonnaMarie Bollmann (donnabollmann@hotmail.com), March 28, 2001.