heavy spar

How to use heavy spar in a sentence

• A mixture of two parts of heavy spar and one of the plumbous compound.

  Field's Chromatography | George Field

• Composed of heavy spar and the carbonate in equal proportions.

  Field's Chromatography | George Field

• There appears to be none of the radiated quartz, or white opaque heavy spar, which are so abundantly found at the Missouri mines.

  Summary Narrative of an Exploratory Expedition to the Sources of the Mississippi River, in 1820 | Henry Rowe Schoolcraft

• At these places, it is most frequently connected with a gangue of heavy spar and calcareous spar, with pyrites of iron.

  Summary Narrative of an Exploratory Expedition to the Sources of the Mississippi River, in 1820 | Henry Rowe Schoolcraft

• Barytes scratches easily with the knife, and from its great specific gravity is often called heavy-spar.

  Geology | James Geikie