"Diabase" Quotes from Famous Books
 ... not without interest to the general reader. From the varied fragments found, it is apparent that some six, or perhaps seven, different classes of stone were used for the small uprights, but that only the harder and more durable rocks (the diabase, rhyolite, etc.) have survived. The softer rocks (basic tuffs, grey wackes, flagstones, and slates), being more easily broken, have fallen victims to the souvenir hunter, and to the action of the weather, rain, and frost. Originally, as has already been stated, the foreign stones numbered forty-five, ...
— Stonehenge - Today and Yesterday • Frank Stevens |
