Slate rocks

(Min.) rocks which split into thin laminæ, not necessarily parallel to the stratification; foliated rocks.

See also: Slate

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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After a little more trouble we gained the peat, and then the bare slate rock.
We loved place names like Horsethief Valley, Dry Beaver Creek and a Barbecue Cowboy Stop that offered 'Bottomless Coffee: maximum 99 cups a day!' As Disney Cars fans, the kids loved the fact it looked like 'Radiator Springs' country where the road was cut out of slate rocks and hills, and delighted in waving at the Peterbuilt lorry drivers who happily honked back.
We loved place names like Horsethief Valley, Dry Beaver Creek and a Barbecue Cowboy Stop that offered "Bottomless Coffee: maximum 99 cups a day!" As Disney Cars fans, the kids loved the fact it looked like "Radiator Springs" country, where the road was cut out of slate rocks and hills, and delighted in waving at the Peterbuilt lorry drivers who happily honked back.
We loved place names like Horsethief Valley, Dry Beaver Creek and a Barbecue Cowboy Stop that offered 'Bottomless Coffee: maximum 99 cups a day!' ' As Disney Cars fans, the kids loved the fact it looked like 'Radiator Springs' country where the road was cut out of slate rocks and hills, and delighted in waving at the Peterbuilt lorry drivers who happily honked back.
She said they plan to protect their natural resources by working with the department of mines concerning slate rocks found in the area, which are sometimes mined illegally by some companies.
The finder of the fossil was the partnership's own Ken Bradshaw, who said: "These marl slate rocks frequently show up mackerel type fossils and sections of fish and sometimes ferns and plant material.