oxidation

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Navajo Sandstone (Lower Jurassic; north of Bootlegger Canyon, Utah, USA) 21
by James St. John

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52482251102.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52482251102_41a4612f61_m.jpg" alt="" /></a><br />Navajo Sandstone (Lower Jurassic; north of Bootlegger Canyon, Utah, USA) 21 / James St. John</span>

サイズ変更など

The queen is oxidizing
by kevin dooley

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/1316250360.html" target="_blank"><img src="http://farm2.static.flickr.com/1387/1316250360_070a9a4920_m.jpg" alt="" /></a><br />The queen is oxidizing / kevin dooley</span>

サイズ変更など

Gears_7215b
by JKehoe_Photos

クリエイティブ・コモンズ表示-改変禁止 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/29399183697.html" target="_blank"><img src="http://farm2.static.flickr.com/1867/29399183697_285cffa728_m.jpg" alt="" /></a><br />Gears_7215b / JKehoe_Photos</span>

サイズ変更など

Iron-oxide stained limestone cave wall (Ohio Caverns, western Ohio, USA) 5
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/30892148175.html" target="_blank"><img src="http://farm6.static.flickr.com/5328/30892148175_17ef156378_m.jpg" alt="" /></a><br />Iron-oxide stained limestone cave wall (Ohio Caverns, western Ohio, USA) 5 / James St. John</span>

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Paxton Square Cottages Burra.
by denisbin

クリエイティブ・コモンズ表示-改変禁止 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/14235415715.html" target="_blank"><img src="http://farm3.static.flickr.com/2910/14235415715_59fa53dd2d_m.jpg" alt="" /></a><br />Paxton Square Cottages Burra. / denisbin</span>

サイズ変更など

23_0002298 Convair Image Ceramic Tool Insert AL OXIDE (Crater)
by San Diego Air & Space Museum Archives

No known copyright restrictions(著作権制限なし)

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49086802222.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49086802222_5a7ddee5e2_m.jpg" alt="" /></a><br />23_0002298 Convair Image Ceramic Tool Insert AL OXIDE (Crater) / San Diego Air & Space Museum Archives</span>

サイズ変更など

Radioactive Takumar -- after 8 days (end)
by s58y

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/4354929283.html" target="_blank"><img src="http://farm5.static.flickr.com/4036/4354929283_a22dcd8695_m.jpg" alt="" /></a><br />Radioactive Takumar -- after 8 days (end) / s58y</span>

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Fontana Dam Abstract
by mrdannynavarro

クリエイティブ・コモンズ表示-継承 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/14734767864.html" target="_blank"><img src="http://farm4.static.flickr.com/3913/14734767864_936512f72e_m.jpg" alt="" /></a><br />Fontana Dam Abstract / mrdannynavarro</span>

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Chromitic serpentinite (Little Port Complex, Bay of Islands Ophiolite, Middle Cambrian, 505 Ma; Springer's Hill outcrop, Lewis Hills, Newfoundland) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/50717822783.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50717822783_a32e74752d_m.jpg" alt="" /></a><br />Chromitic serpentinite (Little Port Complex, Bay of Islands Ophiolite, Middle Cambrian, 505 Ma; Springer's Hill outcrop, Lewis Hills, Newfoundland) 4 / James St. John</span>

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23_0002299 Convair Image Ceramic Tool Insert AL OXIDE (Breakdown)
by San Diego Air & Space Museum Archives

No known copyright restrictions(著作権制限なし)

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49086078633.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49086078633_c8ef90e2ee_m.jpg" alt="" /></a><br />23_0002299 Convair Image Ceramic Tool Insert AL OXIDE (Breakdown) / San Diego Air & Space Museum Archives</span>

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Textura Azul II
by Juan Antonio Capó

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/4667290646.html" target="_blank"><img src="http://farm5.static.flickr.com/4016/4667290646_119c06f136_m.jpg" alt="" /></a><br />Textura Azul II / Juan Antonio Capó</span>

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Lazurite in pyritic marble (Badakhshan, Afghanistan)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49166882696.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49166882696_44f36ac782_m.jpg" alt="" /></a><br />Lazurite in pyritic marble (Badakhshan, Afghanistan) / James St. John</span>

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Iron-oxide stained limestone cave wall (Ohio Caverns, western Ohio, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/30256492583.html" target="_blank"><img src="http://farm6.static.flickr.com/5777/30256492583_3df52dfd30_m.jpg" alt="" /></a><br />Iron-oxide stained limestone cave wall (Ohio Caverns, western Ohio, USA) 2 / James St. John</span>

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Diamonds (Zaire) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/17366248963.html" target="_blank"><img src="http://farm9.static.flickr.com/8879/17366248963_927a5e49a8_m.jpg" alt="" /></a><br />Diamonds (Zaire) 1 / James St. John</span>

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Copper with quartz crystal molds (Mesoproterozoic, 1.05-1.06 Ga; Caledonia Mine, Upper Peninsula of Michigan, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/17301714881.html" target="_blank"><img src="http://farm8.static.flickr.com/7676/17301714881_e4bf73ecff_m.jpg" alt="" /></a><br />Copper with quartz crystal molds (Mesoproterozoic, 1.05-1.06 Ga; Caledonia Mine, Upper Peninsula of Michigan, USA) / James St. John</span>

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Corona Arch (west of Moab, Utah, USA) 40
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52503446685.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52503446685_3171328552_m.jpg" alt="" /></a><br />Corona Arch (west of Moab, Utah, USA) 40 / James St. John</span>

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A glovebox cell inside Building 235-F
by Savannah River Site

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/7160440511.html" target="_blank"><img src="http://farm9.static.flickr.com/8020/7160440511_4aa2492cc9_m.jpg" alt="" /></a><br />A glovebox cell inside Building 235-F / Savannah River Site</span>

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Diamond in kimberlite 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/17406779803.html" target="_blank"><img src="http://farm6.static.flickr.com/5464/17406779803_5a21c79082_m.jpg" alt="" /></a><br />Diamond in kimberlite 1 / James St. John</span>

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Dolomite-sphalerite in brecciated dolostone (Rush, Arkansas, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/40683125084.html" target="_blank"><img src="http://farm1.static.flickr.com/890/40683125084_f822a5e4c7_m.jpg" alt="" /></a><br />Dolomite-sphalerite in brecciated dolostone (Rush, Arkansas, USA) / James St. John</span>

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Southern wall of the old industrial building
by wbaiv

クリエイティブ・コモンズ表示-継承 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/4347466422.html" target="_blank"><img src="http://farm3.static.flickr.com/2727/4347466422_464e598f1a_m.jpg" alt="" /></a><br />Southern wall of the old industrial building / wbaiv</span>

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Black opal (Stayish Mine, Wollo Province, Ethiopia) 17
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/23854268715.html" target="_blank"><img src="http://farm1.static.flickr.com/574/23854268715_5c57d8aed7_m.jpg" alt="" /></a><br />Black opal (Stayish Mine, Wollo Province, Ethiopia) 17 / James St. John</span>

サイズ変更など

Rubellite tourmaline (Madagascar) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51758255740.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51758255740_1150e28f51_m.jpg" alt="" /></a><br />Rubellite tourmaline (Madagascar) 4 / James St. John</span>

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SS Balclutha, Glasgow, stern-on. San Francisco Aquatic Park. A steel-hulled sailing ship.
by wbaiv

クリエイティブ・コモンズ表示-継承 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/12432650545.html" target="_blank"><img src="http://farm4.static.flickr.com/3740/12432650545_3b7da1e780_m.jpg" alt="" /></a><br />SS Balclutha, Glasgow, stern-on. San Francisco Aquatic Park. A steel-hulled sailing ship. / wbaiv</span>

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Indian petroglyphs (~100 B.C. to ~1540 A.D.) (Newspaper Rock, southeastern Utah, USA) 26
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/22463194408.html" target="_blank"><img src="http://farm1.static.flickr.com/679/22463194408_d5f6f37eec_m.jpg" alt="" /></a><br />Indian petroglyphs (~100 B.C. to ~1540 A.D.) (Newspaper Rock, southeastern Utah, USA) 26 / James St. John</span>

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Glass artwork at Tacoma Museum of Glass
by wbaiv

クリエイティブ・コモンズ表示-継承 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/5673894678.html" target="_blank"><img src="http://farm6.static.flickr.com/5066/5673894678_9050e7beff_m.jpg" alt="" /></a><br />Glass artwork at Tacoma Museum of Glass / wbaiv</span>

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M-901 ITV Improved TOW Vehicle - (Tube-launched, Optically controlled, Wire-guided) - an M-113 Armored Personel Carrier with missile launchers
by wbaiv

クリエイティブ・コモンズ表示-継承 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/7485560328.html" target="_blank"><img src="http://farm9.static.flickr.com/8004/7485560328_d9f8759da7_m.jpg" alt="" /></a><br />M-901 ITV Improved TOW Vehicle - (Tube-launched, Optically controlled, Wire-guided) - an M-113 Armored Personel Carrier with missile launchers / wbaiv</span>

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red apple core two days
by roger.karlsson

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/3392131784.html" target="_blank"><img src="http://farm4.static.flickr.com/3659/3392131784_aae5e63401_m.jpg" alt="" /></a><br />red apple core two days / roger.karlsson</span>

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Porphyritic leucite lava (Caprarola, Vico Lake, Viterbo, Italy) 3
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51195351822.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51195351822_1867e8aac9_m.jpg" alt="" /></a><br />Porphyritic leucite lava (Caprarola, Vico Lake, Viterbo, Italy) 3 / James St. John</span>

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Blue halite (Prairie Evaporite Formation, Middle Devonian; Potash Saskatchewan-Lanigan Mine, Saskatchewan, Canada) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/32237025735.html" target="_blank"><img src="http://farm1.static.flickr.com/618/32237025735_6a9c7dbfd6_m.jpg" alt="" /></a><br />Blue halite (Prairie Evaporite Formation, Middle Devonian; Potash Saskatchewan-Lanigan Mine, Saskatchewan, Canada) 1 / James St. John</span>

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Native copper from intraclast conglomerate matrix (Mesoproterozoic, 1.05-1.06 Ga; Conglomerate Lode, Centennial Mine, Houghton County, Michigan, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/17116629157.html" target="_blank"><img src="http://farm9.static.flickr.com/8703/17116629157_8d586a63ec_m.jpg" alt="" /></a><br />Native copper from intraclast conglomerate matrix (Mesoproterozoic, 1.05-1.06 Ga; Conglomerate Lode, Centennial Mine, Houghton County, Michigan, USA) 1 / James St. John</span>

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Jaspilite banded iron formation (BIF) (Negaunee Iron-Formation, Paleoproterozoic, 1.874 or 2.11 Ga; Jasper Knob, Ishpeming, Michigan, USA) 45
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/47970243781.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47970243781_e80eae5125_m.jpg" alt="" /></a><br />Jaspilite banded iron formation (BIF) (Negaunee Iron-Formation, Paleoproterozoic, 1.874 or 2.11 Ga; Jasper Knob, Ishpeming, Michigan, USA) 45 / James St. John</span>

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Precious opal (Bullo River, Queensland, Australia) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/29780597901.html" target="_blank"><img src="http://farm9.static.flickr.com/8252/29780597901_01c8f177df_m.jpg" alt="" /></a><br />Precious opal (Bullo River, Queensland, Australia) 1 / James St. John</span>

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Lodestone (Magnet Cove Complex, mid-Cretaceous, 96-102 Ma; Magnet Cove, Arkansas, USA) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52558585533.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52558585533_58183b2c0e_m.jpg" alt="" /></a><br />Lodestone (Magnet Cove Complex, mid-Cretaceous, 96-102 Ma; Magnet Cove, Arkansas, USA) 4 / James St. John</span>

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Phlogopite mica in marble (Franklin Marble, Mesoproterozoic, 1.03-1.08 Ga; Franklin, New Jersey, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/50716615483.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50716615483_f7d8306785_m.jpg" alt="" /></a><br />Phlogopite mica in marble (Franklin Marble, Mesoproterozoic, 1.03-1.08 Ga; Franklin, New Jersey, USA) 2 / James St. John</span>

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Cross-bedded sandstone (Navajo Sandstone, Lower Jurassic; north of Bootlegger Canyon, Utah, USA) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52482865501.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52482865501_9c45b29ffc_m.jpg" alt="" /></a><br />Cross-bedded sandstone (Navajo Sandstone, Lower Jurassic; north of Bootlegger Canyon, Utah, USA) 4 / James St. John</span>

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23_0002300 Convair Image Ceramic Tool Insert AL OXIDE (Breakdown)
by San Diego Air & Space Museum Archives

No known copyright restrictions(著作権制限なし)

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49086078603.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49086078603_3cb13da6f4_m.jpg" alt="" /></a><br />23_0002300 Convair Image Ceramic Tool Insert AL OXIDE (Breakdown) / San Diego Air & Space Museum Archives</span>

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Pisolitic bauxite (mine near Boddington, Western Australia) 5
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52799424215.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52799424215_d7a0038c45_m.jpg" alt="" /></a><br />Pisolitic bauxite (mine near Boddington, Western Australia) 5 / James St. John</span>

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Gold-quartz-sulfide hydrothermal vein (O'Dea Vein or Irishman Vein, Late Cretaceous; Grant Mine, Fairbanks Mining District, Alaska, USA) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/17153075755.html" target="_blank"><img src="http://farm9.static.flickr.com/8800/17153075755_fe2dd55e52_m.jpg" alt="" /></a><br />Gold-quartz-sulfide hydrothermal vein (O'Dea Vein or Irishman Vein, Late Cretaceous; Grant Mine, Fairbanks Mining District, Alaska, USA) 4 / James St. John</span>

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Rubellite tourmaline 6
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51714567663.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51714567663_59129347fb_m.jpg" alt="" /></a><br />Rubellite tourmaline 6 / James St. John</span>

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Jaspilite banded iron formation (BIF) (Negaunee Iron-Formation, Paleoproterozoic, 1.874 or 2.11 Ga; Jasper Knob, Ishpeming, Michigan, USA) 58
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/47970581496.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47970581496_d74ecf167e_m.jpg" alt="" /></a><br />Jaspilite banded iron formation (BIF) (Negaunee Iron-Formation, Paleoproterozoic, 1.874 or 2.11 Ga; Jasper Knob, Ishpeming, Michigan, USA) 58 / James St. John</span>

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Hollywood Granite (jaspilite BIF) (Paleoproterozoic; Iron Quadrangle District, Minas Gerais State, Brazil)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/14627321977.html" target="_blank"><img src="http://farm6.static.flickr.com/5586/14627321977_3a43b54821_m.jpg" alt="" /></a><br />Hollywood Granite (jaspilite BIF) (Paleoproterozoic; Iron Quadrangle District, Minas Gerais State, Brazil) / James St. John</span>

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Black opal (Stayish Mine, Wollo Province, Ethiopia) 11
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/23745890572.html" target="_blank"><img src="http://farm6.static.flickr.com/5776/23745890572_e1bc83e022_m.jpg" alt="" /></a><br />Black opal (Stayish Mine, Wollo Province, Ethiopia) 11 / James St. John</span>

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Fluorite (Crystal Victory Mine, near Cave-in-Rock, Illinois, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/34430613991.html" target="_blank"><img src="http://farm5.static.flickr.com/4167/34430613991_8032af242a_m.jpg" alt="" /></a><br />Fluorite (Crystal Victory Mine, near Cave-in-Rock, Illinois, USA) 2 / James St. John</span>

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Gold nugget (placer gold) (California, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/16839560358.html" target="_blank"><img src="http://farm8.static.flickr.com/7628/16839560358_96f47b3cd0_m.jpg" alt="" /></a><br />Gold nugget (placer gold) (California, USA) / James St. John</span>

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Corundum (Soutpansberg Range area, South Africa) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52018532742.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52018532742_a3a87f3e74_m.jpg" alt="" /></a><br />Corundum (Soutpansberg Range area, South Africa) 1 / James St. John</span>

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Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 31
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52722961490.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52722961490_22a00da01b_m.jpg" alt="" /></a><br />Uranium roll front hosted in Dakota Sandstone (Turkey Creek Road roadcut, Dakota Hogback, near Denver, Colorado, USA) 31 / James St. John</span>

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SR-71 3 wheel main landing gear
by wbaiv

クリエイティブ・コモンズ表示-継承 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/5092272549.html" target="_blank"><img src="http://farm5.static.flickr.com/4151/5092272549_9158ba742a_m.jpg" alt="" /></a><br />SR-71  3 wheel main landing gear / wbaiv</span>

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Heathcote. The Pink Cliffs Reserve was a gold mining area where sluicing and waterraces were built to remove surface layers of soil. Beneath are pink coloured rocks stained by iron oxides. Mining here operated in the 1870s and 1880s.
by denisbin

クリエイティブ・コモンズ表示-改変禁止 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/25453639863.html" target="_blank"><img src="http://farm2.static.flickr.com/1704/25453639863_7e8f1bee26_m.jpg" alt="" /></a><br />Heathcote. The Pink Cliffs Reserve was a gold mining area where sluicing and waterraces were built to remove surface layers of soil. Beneath are pink coloured rocks stained by iron oxides. Mining here operated in the 1870s and 1880s. / denisbin</span>

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Port Of Oakland Containers and container handling equipment P4271673
by wbaiv

クリエイティブ・コモンズ表示-継承 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/14275527816.html" target="_blank"><img src="http://farm3.static.flickr.com/2940/14275527816_4981ac1fd3_m.jpg" alt="" /></a><br />Port Of Oakland Containers and container handling equipment P4271673 / wbaiv</span>

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Native copper in sandstone (Nonesuch Formation, Mesoproterozoic; White Pine, Upper Peninsula of Michigan, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/41670303551.html" target="_blank"><img src="http://farm1.static.flickr.com/966/41670303551_eef8267f05_m.jpg" alt="" /></a><br />Native copper in sandstone (Nonesuch Formation, Mesoproterozoic; White Pine, Upper Peninsula of Michigan, USA) 2 / James St. John</span>

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Polished "Blue Biggs Jasper" arrowhead (Beggs Canyon, Oregon, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51429281949.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51429281949_8b92967592_m.jpg" alt="" /></a><br />Polished "Blue Biggs Jasper" arrowhead (Beggs Canyon, Oregon, USA) 2 / James St. John</span>

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Hydrophane opal (precious opal) dried out (Tertiary; Ethiopia) 8
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/32711463075.html" target="_blank"><img src="http://farm1.static.flickr.com/744/32711463075_ae374db35d_m.jpg" alt="" /></a><br />Hydrophane opal (precious opal) dried out (Tertiary; Ethiopia) 8 / James St. John</span>

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Limonite-goethite (Hull-Rust Mine, Hibbing, Minnesota, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/23490146712.html" target="_blank"><img src="http://farm6.static.flickr.com/5737/23490146712_81cc9e6003_m.jpg" alt="" /></a><br />Limonite-goethite (Hull-Rust Mine, Hibbing, Minnesota, USA) / James St. John</span>

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23_0002301 Convair Image Ceramic Tool Insert AL OXIDE (Chipping)
by San Diego Air & Space Museum Archives

No known copyright restrictions(著作権制限なし)

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49086585956.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49086585956_59b72d4fe7_m.jpg" alt="" /></a><br />23_0002301 Convair Image Ceramic Tool Insert AL OXIDE (Chipping) / San Diego Air & Space Museum Archives</span>

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Copper crystals (Mesoproterozoic, 1.05-1.06 Ga; Quincy Mine, Hancock, Upper Peninsula of Michigan, USA) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/16685668844.html" target="_blank"><img src="http://farm9.static.flickr.com/8780/16685668844_2e0ef9b492_m.jpg" alt="" /></a><br />Copper crystals (Mesoproterozoic, 1.05-1.06 Ga; Quincy Mine, Hancock, Upper Peninsula of Michigan, USA) 4 / James St. John</span>

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Gold on quartz (North Star Mine, Grass Valley Mining District, California, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/17161279802.html" target="_blank"><img src="http://farm9.static.flickr.com/8754/17161279802_7c0610d441_m.jpg" alt="" /></a><br />Gold on quartz (North Star Mine, Grass Valley Mining District, California, USA) / James St. John</span>

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Prepping the Hybrid Fuel Rocket
by jurvetson

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/1526505592.html" target="_blank"><img src="http://farm3.static.flickr.com/2037/1526505592_993b076275_m.jpg" alt="" /></a><br />Prepping the Hybrid Fuel Rocket / jurvetson</span>

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Fake geode - chalcopyrite on amethyst (Morocco) 5
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/32572251076.html" target="_blank"><img src="http://farm1.static.flickr.com/712/32572251076_f47ddd38a1_m.jpg" alt="" /></a><br />Fake geode - chalcopyrite on amethyst (Morocco) 5 / James St. John</span>

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Copper with silver (Mesoproterozoic, 1.05-1.06 Ga; Knowlton Lode, Caledonia Mine, Ontonagon County, Michigan, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/16703414553.html" target="_blank"><img src="http://farm8.static.flickr.com/7723/16703414553_fcd9236588_m.jpg" alt="" /></a><br />Copper with silver (Mesoproterozoic, 1.05-1.06 Ga; Knowlton Lode, Caledonia Mine, Ontonagon County, Michigan, USA) 1 / James St. John</span>

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Zircons 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/52350566522.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52350566522_165f184c33_m.jpg" alt="" /></a><br />Zircons 2 / James St. John</span>

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