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.[1]
Description
Massive outcrops of whinstone occur include the Pentland Hills, Scotland and the Whin Sills, England.
The name 'whin' derives from the sound it makes when struck with a hammer. It is used for road chippings and dry stone walls, but its natural angular shapes do not fit together well and are not easy to build with, and its hardness makes it a difficult material to work. A common use is in the laying of patios and driveways in its ground/by product state called Whindust.
gollark: They probably won't, because slow lingering deaths are not that useful in combat.
gollark: A mildly interesting thing they didn't mention in the list (as far as I can see from here) is whether your drive conserves velocity or not. Needing to decelerate a stupid amount if you travel far is relevant to stuff.
gollark: I wonder how long you could safely be in a star's corona, surface or core for...
gollark: Hopefully you won't miss your desired position and fall into the star or something.
gollark: Your stuff is on the scale of *universes*?!
References
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