bluestone

American  

[bloo-stohn] / ˈbluˌstoʊn /

noun

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

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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

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Etymology

Origin of bluestone

First recorded in 1645–55; blue + stone

Example Sentences

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 largest "bluestone" at the heart of Stonehenge may not be from Wales, according to new research.

From BBC • Oct. 17, 2023

Popular types for hardscape features include slate, granite, limestone, sandstone and bluestone.

From Seattle Times • Jun. 16, 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

The campus looked a lot like the Institute, with its rolling hills, redbrick Victorian buildings, and bluestone roofs.

From "Reaching for the Moon" by Katherine Johnson