Elements of mineralogy, crystallography and blowpipe analysis from a practical standpoint .. . Eisenrosen, Fibia Switz. Radiated reniform, Geiki. Physical Characters. H., to Sp. gr., to , metallic to dull. Opaque. Streak, brownish red to cherry red. Tenacity, brittle un- CoLOR, iron black, blackish red to cherry red. less micaceous. Sometimes slightly magnetic. Before Blowpipe, Etc.—Infusible. Becomes magnetic in re-ducing flame. Soluble in hot hydrochloric acid. In borax reactsfor Specular Iron.—Brilliant micaceous or in crystals. Black incolor. Red Hema
Elements of mineralogy, crystallography and blowpipe analysis from a practical standpoint .. . Eisenrosen, Fibia Switz. Radiated reniform, Geiki. Physical Characters. H., to Sp. gr., to , metallic to dull. Opaque. Streak, brownish red to cherry red. Tenacity, brittle un- CoLOR, iron black, blackish red to cherry red. less micaceous. Sometimes slightly magnetic. Before Blowpipe, Etc.—Infusible. Becomes magnetic in re-ducing flame. Soluble in hot hydrochloric acid. In borax reactsfor Specular Iron.—Brilliant micaceous or in crystals. Black incolor. Red Hematite.—Submetallic to dull, massive, blackish red tobrownish red in color. Red Ochre.—Earthy impure hematite usually with clay. Oftenpulverulent. Clay Ironstone.—Hard compact red material mixed with muchclay or sand. Martite.— Octahedral crystals, probably pseudomorphs. Similar Species.—Resembles at times the other iron-ores andmassive cuprite. It is distinguished by its streak and strong mag-netism after heating in reducing flame. Remarks.—Usually in metamorphic rocks, prob
Size: 1928px × 1296px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkdvannostran
