1270 



INDEX. 



Mineral particles, regeneration of 705-706 



Mineral Point, Colo., cross section of vein near Lon- 

 don shaft at -- 1135 



Min3ral springs, carbon dioxide emitted from 971 



carbonates contained in, amount of ,- 611 



silica in water of, amount of 572 



See also Springs. 



Mineral stability, factors determining 359-362 



Mineral-vein formation, examples of, now in prog- 

 ress 1059-1060 



Mineralizers, or mineralizing agents, definition of .. 59-60 

 equivalent term used by Elie de Beaumont and 



H. Ste. Claire Deville 59 



Minerals (rock-makingl, adaptation of, to environ- 

 ment -- 33-34 



alterations of, chemical reactions and volume 



changes involved in . 375-394 



classification of, with volume changes 395-408 



general nature of . 202-206 



alterations and alteration products of, tables 



showing - - 372-374 



accompanying ore deposits, citations concern- 

 ing _ 1055-1057 



chemical formulas for 195-201 



classification of - - - 193 



consideration of , in detail-- 192-408 



deposition of , now in progress. 1059-1060 



enlargement of, by deposition of new mat- 

 ter 619-621 



formation of, by igneous intrusion 717-720 



conditions affecting _ 33-35 



growth of -- 619-621 



in igneous rocks, percentages of 937 



in zone of anamorphism, enumeration of 363-364, 



683-685 



in zone of katamorphism, list of - 363 



list of, showing chemical composition, specific 



gravity, etc 195-201 



loss of, by weathering, order of - 518-521 



table showing quantities of — - 516 



molecular volumes and weights of 195-201 



solubility of , order of --- 518-521 



sources of, discussion of.. -- - 207-208 



table showing 369-372 



specific gravities of - - 195-201 



Mines, dry, mistaken inferences concerning . . . 1063-1065 



ground water in --- ---- 1064-1065 



Mining operations, influence of, on ground-water 



level - - 426 



Mississippi Valley, loess of, character of - - - - 501 



zinc and lead deposits of . See Lead; Zinc. 



Missouri, lead and zinc district of, caves in 565 



oxidation in, depth of 606 



See also Lead; Zinc. 

 Molecular attraction, influence of, on ground-water 



circulation 150-152, 419-122 



Molecular change and change of symmetry, altera- 

 tions produced by - 399 



Molecular division, alterations produced by 405 



Molecular mechanical action, definition of 



metamorphic effect of 47-49 



Molecular rearrangement, alterations in rocks by ._ 202 



Mollusks, magnesium contents of shells of - 798 



Monoclinal cleavage, existence of, over extensive 



areas _ -- - -- 928-931 



Monoclinic amphiboles, character, occurrence, for- 

 mation, and alterations of 283-291 ) 



Page. 

 Monoclinic pyroxenes, character, occurrence, for- ' 



mation, and alterations of 271-281 



Monson granite, strain in, shown by quarrying 598 



Montara granite, disintegration of, extent of 530 



Monte Cristo district of Washington, richness of 

 ores in, decrease of, with increase of 



depth in 1187-1188 



second concentration of ores in, conditions fa- 

 voring 1177-1178 



silver ores in 1169 



Moore, C. J., on ore deposits of Cripple Creek dis- 

 trict 1172,1173 



Mosses, disintegratory effects of, on rocks 4 4 1 115 



Mountain making, relations of rock flowage to... 924-931 



Mountainous regions, disintegration in . _ 499-500 



Mountains, limitation of height of, by disintegra- 

 tion 499,528 



Mountains of disintegration, production of 528 



Mousson, A., on pressures required to hold water 

 liquid at temperatures below freez- 

 ing point 440 



Movement, metamorphic effects of 42-43 



Mud family of rocks, character and origin of 886-892 



average chemical composition of 890 



Mueller, Richard, on chemical action of carbon di- 

 oxide solutions on minerals . . 61, 71, 475^176 



Miigge, O. , on deformation of crystals 695 



Miintz,A.,on nitrates in soils of tropical countries 465-466 

 Miintz, A., and Marcano, V., on origin of nitrates 



of Chile 543 



Miintz, A., and Schloessing, T., on bacteria, activ- 

 ity of, temperature favorable to 466 



Murray, John, and Renard, A. F., on silica in sea 



water.. 866-867 



on source of silica for marine organisms 848 



Muscovite, alterations and alteration products of. 337-338, 

 353,374,387,388,402,408 



chemical and physical constants of 199, 336 



formation of, from orthoclase and microcline, 



equation showing... 1070 



occurrence of 336-337 



sources and modes of formation of 223, 224, 225, 



232, 236, 254, 257, 264. 265, 266, 281, 293, 297, 

 312, 313, 318, 319, 327, 328, 353. 371, 375, 376, 

 377, 381, 382, 383. 386, 3S7, 388, 389, 392, 393, 

 394, 397, 398, 400, 402, 403, 404, 406, 407, 408 

 See also Damourite. 

 Museovite-biotite-quartz-schist, photomicrograph 



of. 



902 



Nason, F. L., on iron ores of Missouri 1039 



Native elements, occurrence of, as minerals 212 



Natrolite, alterations and alteration product of 333, 



334,374,388,401 



chemical and physical constants of 199,329 



occurrence of - -- - 331-333 



sources and modes of formation of 261, 



292, 294, 295, 296, 298, 334, 335, 371, 375, 379, 

 380, 384, 388, 392, 397, 398, 399, 401, 402, 404 



Naumann, C. F-, on rock nomenclature. 785 



Naumann, C. F., and Zirkel, Ferdinand, on forma- 

 tion of smaragdite 274 



Nephelite, alterations, and alteration products of. 292-294, 



297,374,388,397,400,402 



chemical and physical constants of 199, 292 



