bluestone

Meanings

1. Any of several bluish-grey varieties of stone used for construction
2. Any of several bluish-grey varieties of stone used for construction:
3. A form of dolerite which appears blue when wet or freshly broken.
4. Any of the several (massive) kinds of non-local stone (particularly dolerite) used to construct Stonehenge.
5. A feldspathic sandstone found in the US and Canada.
6. A form of limestone found in the Shenandoah Valley and some other places.
7. A bluish-grey basalt or olivine basalt.
8. Slate, such as comes from quarries in or near Adelaide.
9. Either of two related copper- and sulfur-based bright blue stones:
10. Copper(II) sulfate, CuSO₄(H₂O)ₓ where x is 0-5, used as a coloring agent in glass-making and pottery and for other purposes.
11. Chalcanthite, a water-soluble sulfate mineral, CuSO₄·5H₂O.
12. Lapis lazuli, or its core constituent, lazurite.

1. To treat or dose with copper sulfate.

1. A surname.

Etymology

From blue + stone.