spathic

Diamond, sir, in extraordinary evidence! in conjunction with specular iron ore, commonly called the red haematite, and the ferrous carbonate, or spathic iron.

The Lord of the Sea 1906

Siderite or spathic iron ore occurs as a gangue mineral in some of the gold quartz veins in the central part of the State, but owing to its limited quantity, it is of little economical importance for the manufacture of iron.

North Carolina and its Resources. North Carolina. Board of Agriculture. 1896

The mineralogical character of the iron ores found in the State includes magnetite, red hematite, brown hematite (limonite), siderite (spathic ore), and black band ores.

North Carolina and its Resources. North Carolina. Board of Agriculture. 1896

Again, many minerals, such as crystals, are bounded by plain surfaces, and, with very few exceptions (spathic and hematite iron and dolomite are such exceptions) none are bounded by curved lines and surfaces, while living organisms are bounded by such lines and surfaces.

Young Folks' Library, Volume XI (of 20) Wonders of Earth, Sea and Sky Various 1880

Throughout the coal-measures of the commonwealth there are vast beds of spathic ore, which will serve when the more available deposits have been exhausted.

The Great South; A Record of Journeys in Louisiana, Texas, the Indian Territory, Missouri, Arkansas, Mississippi, Alabama, Georgia, Florida, South Carolina, North Carolina, Kentucky, Tennessee, Virginia, West Virginia, and Maryland 1875

At Pillersee, in Austria, spathic iron ore has been reduced by a mixture of fir-wood charcoal, and air-dry peat in the proportions of three parts by bulk of the former to one of the latter.

Peat and its Uses as Fertilizer and Fuel 1869

It contains, as substances accidentally disseminated in the mass, brown iron-ore, spathic iron, even rock-crystal.

Travels to the Equinoctial Regions of America 1851

It contains, as substances accidentally disseminated in the mass, brown iron-ore, spathic iron, even rock-crystal.

Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3 Alexander von Humboldt 1814

The property of the spathic acid, to corrode flinty substances, has been lately applied by a Mr. Puymaurin, to engrave on glass, as artists engrave on copper, with aquafortis.

Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson, Volume 2 Thomas Jefferson 1784

The property of the spathic acid, to corrode flinty substances, has been lately applied by a Mr. Puymaurin, to engrave on glass, as artists engrave on copper, with aquafortis.

Letters 1760