Whinstone

Hard, brown-black stone, (a type of dolerite). Used for the rubble core of Hadrian's Wall and in other situations were shape was not important, as it was too hard to carve into shapes, such as road layers.
Found on http://www.encyclo.co.uk/local/20766

Whinstone

Whinstone is a term used in the quarrying industry to describe any hard dark-coloured rock. Examples include the igneous rocks basalt and dolerite as well as the sedimentary rock chert. Massive outcrops of whinstone occur include the Pentland Hills, and the Whin Sills. The name `whin` derives from the sound it makes when struck with a hammer. It.....
Found on http://en.wikipedia.org/wiki/Whinstone

Whinstone

• (n.) A provincial name given in England to basaltic rocks, and applied by miners to other kind of dark-colored unstratified rocks which resist the point of the pick. -- for example, to masses of chert. Whin-dikes, and whin-sills, are names sometimes given to veins or beds of basalt.
Found on http://thinkexist.com/dictionary/meaning/whinstone/

whinstone

whin noun any of various hard colored rocks (especially rocks consisting of chert or basalt)
Found on https://www.encyclo.co.uk/local/20974

Whinstone

Whin'stone' noun [ Whin + stone ; confer Scot. quhynstane .] A provincial name given in England to basaltic rocks, and applied by miners to other kind of dark- colored unstratified rocks which resist the point of the pick. -- for example, to masses of chert. Whin-dikes , and ...
Found on http://www.encyclo.co.uk/webster/W/31

Whinstone

A hard stone, formed by molten or semi-molten volcanic rock welling up through the surface rock. Whinstone is usually dark in colour, and cannot be dressed to a fine finish. When used in church buildings it is usually set in a framework of sandstone dressings. Related Words: Sandstone
Found on http://www.encyclo.co.uk/local/20938

whinstone

hard and compact rock
Found on http://phrontistery.info/w.html
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