The National Geographic Magazine, Volume 100National Geographic Society, 1951 - Geography Indexes kept up to date with supplements. |
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Page 635
" Rockhounds " Uncover Earth's Mineral Beauty Mineral Hunters Risk Death on Mexico's Paricutín Volcano Dr. W ... minerals Nature calls on all of the giant forces at her command , including the action of water , great pressure ...
" Rockhounds " Uncover Earth's Mineral Beauty Mineral Hunters Risk Death on Mexico's Paricutín Volcano Dr. W ... minerals Nature calls on all of the giant forces at her command , including the action of water , great pressure ...
Page 640
... minerals in meteorites are the same as those found in terrestrial rocks , including nickel - iron , diamond , graphite , magnetite , quartz , olivine , pyroxene , and feldspar . But some rare minerals never found on earth are known only ...
... minerals in meteorites are the same as those found in terrestrial rocks , including nickel - iron , diamond , graphite , magnetite , quartz , olivine , pyroxene , and feldspar . But some rare minerals never found on earth are known only ...
Page 641
... mineral collectors , since in addition to producing spec- tacular crystal groups of many minerals , it has yielded also nearly 150 different mineral species , many of which are brilliantly fluores- cent . After more than 100 years of ...
... mineral collectors , since in addition to producing spec- tacular crystal groups of many minerals , it has yielded also nearly 150 different mineral species , many of which are brilliantly fluores- cent . After more than 100 years of ...
Contents
Around the World in Eighty Days By Newman Bumstead With 34 illustrations | vii |
Colorados Friendly Topland Rocky Mountains By Robert M Ormes With 19 illus | xiii |
The Ghosts of Jericho Jordan By James L Kelso 825 | xxix |
Copyright | |
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