Look up: Whinstone

1. 
   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.keystothepast.info/durhamcc/k
   
   
2. 
   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.maintainyourchurch.org.uk/Too
   
   
3. 
   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 whin-sills , are names sometimes given to veins or beds of basalt.
   Found on http://www.encyclo.co.uk/webster/W/31
   
   
4. 
   whinstone
   whin noun any of various hard colored rocks (especially rocks consisting of chert or basalt)
   Found on http://wordnet.princeton.edu/perl/webwn?
   
   
5. 
   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.
   Found on http://en.wikipedia.org/wiki/Whinstone
   
   
6. 
   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