"Limonite" Quotes from Famous Books
 ... assayed by the official mining office at Trieste, was pronounced to be antimony! It was extracted from ruddle (red ochre) and limonite (brown ochre or hydrous oxide of iron): both are sesquioxides (Fe2O3) which become dark when heated and change to magnetic oxide (Fe3O4). M. Marie is probably the first who ever "ran down" iron oxide with lead. No wonder that Colonel Ross ...
— The Land of Midian, Vol. 1 • Richard Burton
... separation of secondary products along these and other planes of chemical weakness ("solution planes") in the crystal. The secondary products consist of mixtures of various hydrated oxides—opal, goethite, limonite, &c—and appear as microscopic inclusions filling or partly filling cavities, which have definite outlines with respect to the enclosing crystal and are known as negative crystals. It is to the reflection and ...
— Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 - "Destructors" to "Diameter" • Various
... substance, like celadonite, delessite or "green earth,'' which are hydrous silicates rich in iron, derived probably from the decomposition of the augite in the mother-rock., This green silicate may give rise by alteration to a brown oxide of iron (limonite), producing a rusty appearance on the outside of the agate-nodule. The outer surface of an agate, freed from its matrix, is often pitted and rough, apparently in consequence of the removal of the original ...
— Project Gutenberg Encyclopedia
... sulphur (iron sulphide). Under the attack of the weather it takes up oxygen, forming iron sulphate (green vitriol), a soluble compound, and insoluble hydrated iron oxide, which as a mineral is known as limonite. Several large masses of iron sulphide were placed some years ago on the lawn in front of the National Museum at Washington. The mineral changed so rapidly to green vitriol that enough of this poisonous compound ...
— The Elements of Geology • William Harmon Norton |
