bluestone
- Noun. (UK) A form of dolerite which appears blue when wet or freshly broken.
- Noun. (UK) Any of several massive stones used to construct Stonehenge.
- Noun. (US) A feldspathic sandstone in the U.S.
- Noun. (US) A form of limestone native to the Shenandoah Valley.
- Noun. (Australia) A basalt or olivine basalt.
- Noun. (Australia, South Australia) Slate from quarries in or near Adelaide.
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This entry was last updated on RefTopia from its source on 3/20/2012.