A type of gray, volcanic rock, typically containing feldspar and iron(noun)
A building made of any type of gray stone, such as limestone(noun)
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Use "graystone" in a sentence
"Meantime, my fantasy resurfaces: me inside my own Congressman's neo - traditional Georgetown graystone -- a wild scene of passionate, out-of-control (but, of course, well informed) lovemaking."
"Champlain also sent provisions that had been shipped in graystone pottery crocks of Norman design."
"The frosty night had turned the graystone steps to ice and through my skirt and drawers my legs grew numb."