tilestone

Definitions

n. A tile; brick.
n. Any stone suitable for making tiles, or which can be used for roofing, but splitting into layers too thick to be properly called slate (see slate); thin-bedded flagstone. The term tile-stone was applied by Murchison to the Downton sandstones and Ledbury shales, which are beds of passage between the Silurian and Old Red Sandstone in Wales.

n. geology A kind of laminated shale or sandstone belonging to some of the layers of the Upper Silurian.
n. A tile made of stone.

n. (Geol.) A kind of laminated shale or sandstone belonging to some of the layers of the Upper Silurian.
n. A tile of stone.

“The colour was red like the tilestone when it is new-burnt, with black spots therein like black freckles -- fouler than the tilestone.”

Revelations of Divine Love
“Above this gray tilestone formation lies the Upper Old Red Sandstone, with its peculiar group of ichthyic organisms, none of which seem specially identical with those of either the Caithness or the”

The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed
“It must, however, be stated, on the other hand, that the crustaceans of the gray tilestones of Forfar and Kincardine not a little resemble those of the Upper Silurian and red tilestone beds of England; and that, judging from the ichthyodorulites found in both, their fishes must have been at least generically allied.”

The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed
“I deemed it fifteen years ago, when our highest authority on the subject not only regarded the tilestone of the Silurian regions of England as a member of the Old Red Sandstone (an arrangement which I am still disposed to deem the true one), but also held further, that there had been detected in this formation near Downtown Castle, Herefordshire, broken remains of _Dipterus macrolepidotus_, one of the best marked ichthyolites of the flagstones of Caithness and Orkney.”

The Testimony of the Rocks or, Geology in Its Bearings on the Two Theologies, Natural and Revealed