 ... slate — in fact, all possible gradations and mixtures of the minerals dolomite, hematite, quartz, and such argillaceous minerals as kaolin and chlorite. In the ferruginous rocks associated with the iron ore the iron occurs as hematite and also in...  Pre-Cambrian Geology of North America - Pagina 713door Charles Richard Van Hise, Charles Kenneth Leith - 1909 - 939 pagina’sVolledige weergave - Over dit boek
 | 1904 - 924 pagina’s
...slate — in fact, all possible gradations and mixtures of the minerals dolomite, hematite, quartz, and such argillaceous minerals as kaolin and chlorite....and also in the form of carbonate, isomorphous with carbonate of calcium, magnesium, and manganese, in the form of ferro-dolomite and manganic-ferro-dolomite... | |
 | Samuel Franklin Emmons, Geological Survey (U.S.) - 1904 - 550 pagina’s
...slat<' — in fact, all possible gradations and mixtures of the minerals dolomite, hematite, quartz, and such argillaceous minerals as kaolin and chlorite....and also in the form of carbonate, isomorphous with carbonate of calcium, magnesium, and manganese, in the form of ferro-dolomite and manganie-ferro-dolomite... | |
 | Geological Survey (U.S.) - 1904 - 546 pagina’s
...slate — in fact, all possible gradations and mixtures of the minerals dolomite, hematite, quartz, and such argillaceous minerals as kaolin and chlorite....occurs as hematite and also in the form of carbonate, isornorphous with carbonate of calcium, magnesium, and manganese, in the form of ferro-dolomitc and... | |
 | Thomas Chrowder Chamberlin - 1905 - 822 pagina’s
...slate — in fact, all possible graduations and mixtures of the minerals dolomite, hematite, quartz, and such argillaceous minerals as kaolin and chlorite....and also in the form of carbonate, isomorphous with carbonate of calcium, magnesium, and manganese in the form of ferro-dolomite and manganic-ferro-dolomite,... | |
 | Thomas Chrowder Chamberlin - 1905 - 894 pagina’s
...slate — in fact, all possible graduations and mixtures of the minerals dolomite, hematite, quartz, and such argillaceous minerals as kaolin and chlorite....and also in the form of carbonate, isomorphous with carbonate of calcium, magnesium, and manganese in the form of ferro-dolomite and manganic-feiro-dolomite,... | |
 | 1905 - 814 pagina’s
...slate — in fact, all possible gradations and mixtures of the minerals dolomite, hematite, quartz, and such argillaceous minerals as kaolin and chlorite. In the ferruginous rocks associated with the iron-ore, the iron occurs as hematite and also in the form of carbonate, isomorphous with the carbonates... | |
 | Geological Survey (U.S.) - 1909 - 1014 pagina’s
...slate — in fact, all possible gradations and mixtures of the minerals dolomite, hematite, quartz, and such argillaceous minerals as kaolin and chlorite....and manganic ferrodolomite ; as silicates combined wifli various proportions of alumina, lime, magnesia, and manganese; as chlorite and mica; and also... | |
 | Thomas Chrowder Chamberlin - 1905 - 780 pagina’s
...slate — in fact, all possible graduations and mixtures of the minerals dolomite, hematite, quartz, and such argillaceous minerals as kaolin and chlorite....and also in the form of carbonate, isomorphous with carbonate of calcium, magnesium, and manganese in the form of ferro-dolomite and manganic-ferro-dolomite,... | |
 | 1904 - 1220 pagina’s
...slate — in fact, all possible gradations and mixtures of the minerals dolomite, hematite, quartz, and such argillaceous minerals as kaolin and chlorite....and also in the form of carbonate, isomorphous with carbonate of calcium, magnesium, and manganese, in the form of ferrodolomite and manganic-ferro-dolomite,... | |
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