Definitions for "Bluestone"
A grayish blue building stone, as that commonly used in the eastern United States.
A variety of flagstone, used for paving, this blue, gray or green sandstone splits easily into thin slabs.
A hard sandstone of characteristic blue, gray, green brown and rust colors, quarried in the states of New York and Pennsylvania .
Keywords:  dolerite, wet, broken, freshly, appears
is a type of rock known as dolerite, it appears blue when wet or broken.
Bluestone is the name given to a form of dolerite which appears blue when wet or freshly broken.
Keywords:  vitriol
Blue vitriol.
Keywords:  libido, legend, saw, army, suppress
Legend had it that "bluestone" was put in the coffee to suppress libido's. In my 2 years in the army I never saw any proof of this.
Keywords:  sulfate, copper, called
Also called copper sulfate
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