Metamorphic Rocksgreenspun.com : LUSENET : Introductory Geology, Oswego State : One Thread
What metamorphic rock generally cantains the smallest crystals?
-- Shannon Davis (email@example.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 (firstname.lastname@example.org), March 28, 2001.