The difference between slate and phyllite is that: a. the layers of phyllite are more flat than the layers of slate, which are noticeably wavy.
b. slate can be scratched by a fingernail, but phyllite cannot.
c. phyllite effervesces with application of dilute HCl, whereas slate does not.
d. the layers of slate are more flat than the layers of phyllite, which are noticeably wavy.
e. phyllite can be scratched by a fingernail, but slate cannot.
f. slate effervesces with application of dilute HCl, whereas phyllite does not.
g. phyllite is foliated, whereas slate is unfoliated. slate is foliated, whereas phyllite is unfoliated.