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