bluestone

1. Any of several bluish-grey varieties of stone used for construction:Examples: "Its people are proud of their history and heritage of free settlement and the famous bluestone homes and public buildings of Adelaide are among the most orderly and best cared for examples of colonial architecture in the country."; "Hanson Chambers, as 56 Carrington Street was eventually known, confirmed the tradition that the South Australian bar would develop as a series of small enclaves, more often than not in old, bluestone buildings dating back to the nineteenth century."; "William rented the house on the corner of Lefevre Terrace and Tynte Street: a two-storey home of local bluestone with stuccoed enrichments, in high Victorian Italianate style."countableuncountable

2. Any of several bluish-grey varieties of stone used for construction:UKcountableuncountable

3. Any of several bluish-grey varieties of stone used for construction:UKcountableuncountable

4. Any of several bluish-grey varieties of stone used for construction:CanadaUScountableuncountable

5. Any of several bluish-grey varieties of stone used for construction:UScountableuncountable

6. Any of several bluish-grey varieties of stone used for construction:AustraliaNew-Zealandcountableuncountable