bluestone

American  

[bloo-stohn] / ˈbluˌstoʊn /

noun

1. a bluish, argillaceous sandstone used for building purposes, flagging, etc.

---

bluestone British  

/ ˈbluːˌstəʊn /

noun

1. a blue-grey sandstone containing much clay, used for building and paving

2. the blue crystalline form of copper sulphate

3. a blue variety of basalt found in Australia and used as a building stone

---

Etymology

Origin of bluestone

First recorded in 1645–55; blue + stone

Example Sentences

Certainly, no prying eyes could see through to the pool area, which is bordered by a bluestone patio.

From MarketWatch • Apr. 8, 2026

Their work offers evidence for the first time of links between cattle remains at Stonehenge and Wales, at the time when the bluestone megaliths were moved to the site.

From BBC • Aug. 22, 2025

The area’s state representative, Jonathan Fritz, said an overwhelming number of his constituents favor natural gas drilling, an important economic engine in a county where farming, logging and bluestone quarrying were primary industries.

From Seattle Times • Dec. 19, 2023

In back, the house has a veranda and a bluestone patio with an outdoor kitchen and a wood-burning fireplace.

From Washington Post • Apr. 14, 2023

I walked past the mountain laurels and the Japanese maple, up the bluestone steps of Morrie’s house.

From "Tuesdays with Morrie" by Mitch Albom