Chlorite slate


  • Webster's Revised Unabridged Dictionary
    • Chlorite slate a schistose or slaty rock consisting of alumina, iron, and magnesia.
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In literature:

The ore is found in a sort of chloritic slate and iron pyrites which follow the ledge all around.
"Scientific American Supplement, No. 363, December 16, 1882" by Various
The rocks of this group in South Devon consist, in great part, of green chloritic slates, alternating with hard quartzose slates and sandstones.
"A Manual of Elementary Geology" by Charles Lyell