 | | Book (edition) | | minerals is imparted by transition elements, especially iron, manganese, titanium, chromium, and copper. Despite...USSR, in translation, 1966). INTRODUCTION The Ore Minerals and Their Intergrowths, 2d ed., Vols. 1...fibrous, conchoidal, etc. gangue The portion of an ore that is not economically valuable. gem A mineral...sulfide deposit; contains a concentration of hydrated iron oxide. habit The characteristic crystal form of...mass; (2) a concretionary lump of manganese and iron oxides found on ocean bottoms. occurrence The physical | | | Book (edition) | | minerals is imparted by transition elements, especially iron, manganese, titanium, chromium, and copper. Despite...USSR, in transla[ion , 1966). INTRODUCTION The Ore Minerals and Their Intergrowths, 2d ed., Vols. 1...fibrous, conchoidal, etc. gangue The portion of an ore that is not economically valuable. gem A mineral...sulfide deposit; contains a concentration of hydrated iron oxide. habit The characteristic crystal form of...mass; (2) a concretionary lump of manganese and iron oxides found on ocean bottoms. occurrence The physical |  | | Report (issue) | | quarry south of West Chester, and the French Creek iron mines. One of the most active collectors during...case of H 2 O. The following analysis of "chrome ore" from Wood's mine by Garrett (1852: 45) lies may... 1919. William Harvey Emmons, The enrichment of ore deposits: U. S. Geol. Surv. Bull. Amadeus W. Grabau...pyrrhotite, pentlandite; Element: DYNAMIC-METAMORPHS iron. : Metasilicates, amphiboles: hornblende; Orthosilicates:...pyrrhotite, pentlandite, chalcopyrite Elements: diamond, iron, platinum. ; HYDROTHERMAL METAMORPHS: anthophyllite |  | | Book (edition) | | formulas. We have indicated the ionic charge on iron and manganese. Hardness: Mineralogists have long...minerals is imparted by transition elements, especially iron, manganese, titanium, chromium, and copper. Despite...published by the Mineralogical Record, Inc. "The Ore Minerals and TI1eir Intergrowths," by Paul Ramdohr...fibrous, conchoidal, etc. gangue The portion of an ore which is not economically valuable. gem A mineral...mass; (2) a concretionary lump of manganese and iron oxides found on ocean bottoms. occurrence The physical |  | | Journal (volume) | | in Finland Heikki Papunen: One hundred years of ore exploration in Finland ..... Matti Ketola: The development...among the first to appear on the pages of history. Iron was first known in Egypt about 8,000 years aga and...modern geology. Until then iron had been made in Finland of lake or bog ore in the small furnaces of the...Finnish national epic, »Rauan synty ruostehesta » (Iron is born of rust). In 1542 , Erik Flemming opened...be and eager/ albeit without greed/ to seek for ore and mine the earth. In the next century, true scientific |
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