She is as hard as a flint stone.
"The International Magazine, Volume 2, No. 2, January, 1851" by Various
One day she found a flint in a field, and picked her up, and the stone told her that her name was Flint.
"The Gypsies" by Charles G. Leland
Rough stone gave place to flint because the latter would take a better edge.
"Commercial Geography" by Jacques W. Redway
They might as well have filled their treasuries with flint-stones or scraps of iron.
"American Sketches" by Charles Whibley
Some throw clods, some branches torn from trees, others flint stones.
"The Metamorphoses of Ovid" by Publius Ovidius Naso
Sand is brown, flint is nearly black, and precious stones are of all colours.
"Conversations on Chemistry, V. 1-2" by Jane Marcet
The Auchmeddan Stone is a ball of black-coloured flint, mounted with four strips of silver.
"Archaeological Essays, Vol. 1" by James Y. Simpson
They kindle fire, by striking together a piece of white or yellow pyrites and a flint-stone, over a piece of touchwood.
"Travels in North America, From Modern Writers" by William Bingley
Beside him lay a small pack of flints brought from beyond the mountains, for such stone was rarely found along the lower Columbia.
"The Bridge of the Gods" by Frederic Homer Balch
The sparks which such stones draw from such flints often kindle conflagrations.
"Graham's Magazine Vol XXXIII No. 4 October 1848" by Various
Entirely pudding stone, chiefly calcarious, some small parts of quartz, red granite, & flint only to be found.
"Before and after Waterloo" by Edward Stanley
He put the axe and slings just as he told him, wi' the stones and all the bits of flint things as he found in the hut.
"Mad Shepherds" by L. P. Jacks
They were built of big flint stones, many of which had holes in them, where small birds made their nests.
"A Week's Tramp in Dickens-Land" by William R. Hughes
The commonest aggregates are broken stone and natural flint gravel.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 7" by Various
The church of St Mary exhibits Decorated and Perpendicular stone and flint work.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5" by Various
The north front, with projecting wing and entrance, presents a solid wall of stone covered with fine flint concrete.
"Edge Hill" by Edwin Walford
Use bows and arrows first; then rush in with stone axes and flint knives.
"Tahara" by Harold M. Sherman
He swung a third time and with neat precision played a flint-stone well on the green, laying it dead.
"The Gay Adventure" by Richard Bird
And further, each piece was found to have become converted into a flint stone!
"Traditions, Superstitions and Folk-lore" by Charles Hardwick
History of Stones; as Marble, Touchstone, Flint, etc.
"An Introduction to the History of Science" by Walter Libby