Petrographic Study and Classification of Western Phosphate Ores |
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Page 11
... hydroxylapatite ( fig . 1 and tables 6 and 7 ) . The a , dimensions ranged between 9.347 and 9.387 , the c . dimen- sions between 6.881 and 6.912 , and the axial ratios ( a : c ) between 1 : 0.735 and 1 : 0.738 . ɑo UNIT - CELL ...
... hydroxylapatite ( fig . 1 and tables 6 and 7 ) . The a , dimensions ranged between 9.347 and 9.387 , the c . dimen- sions between 6.881 and 6.912 , and the axial ratios ( a : c ) between 1 : 0.735 and 1 : 0.738 . ɑo UNIT - CELL ...
Page 12
... Hydroxylapatite Francolite Kurskite Plot designations are equivalent to sample designations 9.32 Grodnolite 6.87 6.88 6.89 6.90 6.91 6.92 6.93 6.94 co UNIT - CELL DIMENSIONS , angstroms FIGURE 1. Plots Showing Variations in Collophane ...
... Hydroxylapatite Francolite Kurskite Plot designations are equivalent to sample designations 9.32 Grodnolite 6.87 6.88 6.89 6.90 6.91 6.92 6.93 6.94 co UNIT - CELL DIMENSIONS , angstroms FIGURE 1. Plots Showing Variations in Collophane ...
Page 14
... Hydroxylapatite ( 9 ) Hospenthal , Dahllite ( 2 ) ..... Quercy , France . 0.01 1 : 0.7311 Unit - cell determinations of concentrates from the 20 ore samples were made without the use of an internal standard ; the a , and c , dimensions ...
... Hydroxylapatite ( 9 ) Hospenthal , Dahllite ( 2 ) ..... Quercy , France . 0.01 1 : 0.7311 Unit - cell determinations of concentrates from the 20 ore samples were made without the use of an internal standard ; the a , and c , dimensions ...
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Common terms and phrases
aggregate mount apatite argillaceous Bear Lake County Beaverhead County bioclastic bituminous calcite carbonaceous chert Chert Pellet collo collophane dispersion collophane occurred collophane pellets compacted ovules County cryptocrystalline CUMULATED PARTICLE FREQUENCY Cumulative Curves curves of pellet dark gray diameters in aggregate diameters in thin dispersed pellets dolomite embedded encased pellets Feldspar Field Description FIGURE fluorapatite francolite gangue aggregates gangue-particle hydroxylapatite Idaho interstitial collophane light gray Light X75 limonite matrix Maximum gangue Maximum pellet diameters Meade Peak member member of Phosphoria microcrystalline collophane microns mineral Muscovite-sericite and clay nonfriable numbers oolites organic matter ovules and oolites ovulitic Pellet and Gangue percent compacted percent dispersed textures Petrographic Petrographic Description phane phosphate rock phosphatized fossil fragments phosphorite Plane Light X100 quartzitic quartzitic phosphorite sample 9 sample was composed sand-sized quartz semidispersed semidispersed pellets sericite and clay shale shallowly sutured spherulites subhedral sutured quartz grains textural types thin section veinlets vugs Wavellite western phosphate