from The Century Dictionary.
- noun A tile; brick.
- noun 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.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Geol.) A kind of laminated shale or sandstone belonging to some of the layers of the Upper Silurian.
- noun A tile of stone.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun geology A kind of
laminated shaleor sandstonebelonging to some of the layersof the Upper Silurian.
- noun A
tilemade of stone.
from Wiktionary, Creative Commons Attribution/Share-Alike License
The colour was red like the tilestone when it is new-burnt, with black spots therein like black freckles -- fouler than the tilestone.
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
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.
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.