hydrothermal

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Fluorite-barite vein rock (Clays Ferry North outcrop, Fayette County, Kentucky, USA) 1
by James St. John

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/32210152602.html" target="_blank"><img src="http://farm1.static.flickr.com/512/32210152602_1521d94f58_m.jpg" alt="" /></a><br />Fluorite-barite vein rock (Clays Ferry North outcrop, Fayette County, Kentucky, USA) 1 / James St. John</span>

サイズ変更など

Steamboat Geyser (9 August 2011) 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/8272372405.html" target="_blank"><img src="http://farm9.static.flickr.com/8359/8272372405_42fa21ea30_m.jpg" alt="" /></a><br />Steamboat Geyser (9 August 2011) 4 / James St. John</span>

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Brown calcite crystals lining vug in weathered limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, 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/27311810437.html" target="_blank"><img src="http://farm1.static.flickr.com/953/27311810437_d63fdc96d6_m.jpg" alt="" /></a><br />Brown calcite crystals lining vug in weathered limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) / James St. John</span>

サイズ変更など

Steamboat Geyser (2011-2013)
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/50134986798.html" target="_blank"><img src="http://farm0.static.flickr.com/0/50134986798_6366707b40_m.jpg" alt="" /></a><br />Steamboat Geyser (2011-2013) / James St. John</span>

サイズ変更など

Lacustrine geyserite sediments (West Thumb Geyser Basin, Yellowstone, Wyoming, 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/8269836615.html" target="_blank"><img src="http://farm9.static.flickr.com/8199/8269836615_db24a8d1ae_m.jpg" alt="" /></a><br />Lacustrine geyserite sediments (West Thumb Geyser Basin, Yellowstone, Wyoming, USA) 1 / James St. John</span>

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Ear Spring (morning, 2 June 2019) 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/48155462497.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48155462497_2156d381ce_m.jpg" alt="" /></a><br />Ear Spring (morning, 2 June 2019) 2 / James St. John</span>

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Exploration drill cores (Potter Mine, east of Timmins, Ontario, Canada)
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/32928527137.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/32928527137_bf1b298114_m.jpg" alt="" /></a><br />Exploration drill cores (Potter Mine, east of Timmins, Ontario, Canada) / James St. John</span>

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Sulfidic argillite & polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 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/47094168094.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47094168094_e9b9350910_m.jpg" alt="" /></a><br />Sulfidic argillite & polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 6 / James St. John</span>

サイズ変更など

Cinnabar (Klau Mine, San Luis Obispo County, 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/18850533985.html" target="_blank"><img src="http://farm4.static.flickr.com/3954/18850533985_9fd5d3ba63_m.jpg" alt="" /></a><br />Cinnabar (Klau Mine, San Luis Obispo County, California, USA) / James St. John</span>

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Molybdenite veins in quartz monzonite (Continental Mine, Butte, Montana, 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/50920348068.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50920348068_e0458478a3_m.jpg" alt="" /></a><br />Molybdenite veins in quartz monzonite (Continental Mine, Butte, Montana, USA) 5 / James St. John</span>

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Ear Spring (morning, 2 June 2019) 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/48155432947.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48155432947_c7322b2903_m.jpg" alt="" /></a><br />Ear Spring (morning, 2 June 2019) 3 / James St. John</span>

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Gold mass (Colorado, 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/16415068633.html" target="_blank"><img src="http://farm9.static.flickr.com/8765/16415068633_bd3f513d52_m.jpg" alt="" /></a><br />Gold mass (Colorado, USA) 2 / James St. John</span>

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Bismuthinite & molybdenite in pegmatitic granite (Preissac-Lacorne Batholith, Neoarchean, 2.630-2.675 Ga; Moly Hill, Quebec, Canada) 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/18903767866.html" target="_blank"><img src="http://farm4.static.flickr.com/3931/18903767866_855185af51_m.jpg" alt="" /></a><br />Bismuthinite & molybdenite in pegmatitic granite (Preissac-Lacorne Batholith, Neoarchean, 2.630-2.675 Ga; Moly Hill, Quebec, Canada) 2 / James St. John</span>

サイズ変更など

Ear Spring (morning, 2 June 2019) 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/48155392507.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48155392507_32ec7f297f_m.jpg" alt="" /></a><br />Ear Spring (morning, 2 June 2019) 1 / James St. John</span>

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Ear Spring's broken geyserite border (morning, 2 June 2019) 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/48155456237.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48155456237_962dc3387b_m.jpg" alt="" /></a><br />Ear Spring's broken geyserite border (morning, 2 June 2019) 1 / James St. John</span>

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Sulfidic basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 9
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/47094158174.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47094158174_f5a190ce0d_m.jpg" alt="" /></a><br />Sulfidic basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 9 / James St. John</span>

サイズ変更など

Turgite (Graves Mountain, Georgia, USA) 23
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/51121337278.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51121337278_b4b5832487_m.jpg" alt="" /></a><br />Turgite (Graves Mountain, Georgia, USA) 23 / James St. John</span>

サイズ変更など

Pyrite (Huanzala Mine, Peru) 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/18952108619.html" target="_blank"><img src="http://farm1.static.flickr.com/512/18952108619_e6d9bd5dfc_m.jpg" alt="" /></a><br />Pyrite (Huanzala Mine, Peru) 1 / James St. John</span>

サイズ変更など

Fluorite (Late Jurassic; Yaogangxian Mine, Hunan Province, China) 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/34176709430.html" target="_blank"><img src="http://farm5.static.flickr.com/4184/34176709430_4d70661d46_m.jpg" alt="" /></a><br />Fluorite (Late Jurassic; Yaogangxian Mine, Hunan Province, China) 2 / James St. John</span>

サイズ変更など

Sugilite-braunite (Hotazel Formation, Paleoproterozoic, 2.2-2.3 Ga; Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa) 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/15187558730.html" target="_blank"><img src="http://farm3.static.flickr.com/2948/15187558730_d396a356c8_m.jpg" alt="" /></a><br />Sugilite-braunite (Hotazel Formation, Paleoproterozoic, 2.2-2.3 Ga; Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa) 2 / James St. John</span>

サイズ変更など

Bornite 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/18247364836.html" target="_blank"><img src="http://farm9.static.flickr.com/8785/18247364836_8f3db6e8ce_m.jpg" alt="" /></a><br />Bornite 3 / James St. John</span>

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Grotto Geyser
by daveynin

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/4775652793.html" target="_blank"><img src="http://farm5.static.flickr.com/4078/4775652793_68b5a7049a_m.jpg" alt="" /></a><br />Grotto Geyser / daveynin</span>

サイズ変更など

L-tectonite 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/16941432045.html" target="_blank"><img src="http://farm9.static.flickr.com/8736/16941432045_efefc45c6b_m.jpg" alt="" /></a><br />L-tectonite 2 / James St. John</span>

サイズ変更など

Ear Spring
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/15528884420.html" target="_blank"><img src="http://farm4.static.flickr.com/3941/15528884420_9ce5d18883_m.jpg" alt="" /></a><br />Ear Spring / James St. John</span>

サイズ変更など

Pyrite in concretion (Volga River, Russia) 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/35534724890.html" target="_blank"><img src="http://farm5.static.flickr.com/4307/35534724890_293299bdff_m.jpg" alt="" /></a><br />Pyrite in concretion (Volga River, Russia) 1 / James St. John</span>

サイズ変更など

Pyrite vein in host rock (drill core) (Butte Mining District, Montana, 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/50975400161.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50975400161_bb4a17e960_m.jpg" alt="" /></a><br />Pyrite vein in host rock (drill core) (Butte Mining District, Montana, USA) 5 / James St. John</span>

サイズ変更など

Hot Water Stream, Waimangu
by Vendin

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/9495870541.html" target="_blank"><img src="http://farm4.static.flickr.com/3680/9495870541_71fc04d856_m.jpg" alt="" /></a><br />Hot Water Stream, Waimangu / Vendin</span>

サイズ変更など

Pyrite-quartz (Peru) 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/19102843066.html" target="_blank"><img src="http://farm4.static.flickr.com/3954/19102843066_4e23de1714_m.jpg" alt="" /></a><br />Pyrite-quartz (Peru) 1 / James St. John</span>

サイズ変更など

Ear Spring (morning, 2 June 2019) 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/48155398727.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48155398727_8bdba94f8c_m.jpg" alt="" /></a><br />Ear Spring (morning, 2 June 2019) 5 / James St. John</span>

サイズ変更など

Ear Spring's broken geyserite border (morning, 2 June 2019) 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/48155342296.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48155342296_f10e21a2d6_m.jpg" alt="" /></a><br />Ear Spring's broken geyserite border (morning, 2 June 2019) 2 / James St. John</span>

サイズ変更など

Mud Volcano (10 August 2011) 20
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/14515120322.html" target="_blank"><img src="http://farm4.static.flickr.com/3925/14515120322_936c94673c_m.jpg" alt="" /></a><br />Mud Volcano (10 August 2011) 20 / James St. John</span>

サイズ変更など

Gold (Tuolumne County, California, 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/16414475184.html" target="_blank"><img src="http://farm8.static.flickr.com/7598/16414475184_8744e4d21c_m.jpg" alt="" /></a><br />Gold (Tuolumne County, California, USA) 1 / James St. John</span>

サイズ変更など

Serpentinite (Paleozoic; Vermont Verde Antique International Quarry, northeast of Rochester, Vermont, USA) 18
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/49654543227.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49654543227_331e2cffd1_m.jpg" alt="" /></a><br />Serpentinite (Paleozoic; Vermont Verde Antique International Quarry, northeast of Rochester, Vermont, USA) 18 / James St. John</span>

サイズ変更など

Garnet schist (Late Cretaceous, 89-90 Ma; Garnet Ledge, about 12 km north of Wrangell, southeastern Alaska, USA) 10
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/49072454968.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49072454968_8f825f1854_m.jpg" alt="" /></a><br />Garnet schist (Late Cretaceous, 89-90 Ma; Garnet Ledge, about 12 km north of Wrangell, southeastern Alaska, USA) 10 / James St. John</span>

サイズ変更など

Ballcap Geyser (9 August 2015) 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/20714989684.html" target="_blank"><img src="http://farm6.static.flickr.com/5780/20714989684_66062891a0_m.jpg" alt="" /></a><br />Ballcap Geyser (9 August 2015) 2 / James St. John</span>

サイズ変更など

Fluorite-barite vein rock (Clays Ferry North outcrop, Fayette County, Kentucky, 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/31983337870.html" target="_blank"><img src="http://farm1.static.flickr.com/675/31983337870_9a4bde939d_m.jpg" alt="" /></a><br />Fluorite-barite vein rock (Clays Ferry North outcrop, Fayette County, Kentucky, USA) 2 / James St. John</span>

サイズ変更など

Covellite (latest Cretaceous to earliest Tertiary, 62-66 Ma; Leonard Mine, Butte, Montana, USA) 12
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/50708489306.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50708489306_091087bb0f_m.jpg" alt="" /></a><br />Covellite (latest Cretaceous to earliest Tertiary, 62-66 Ma; Leonard Mine, Butte, Montana, USA) 12 / James St. John</span>

サイズ変更など

Calcite (Detroit River Group, Devonian; quarry in Lucas County, Ohio, 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/52081589315.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52081589315_05040ffdcd_m.jpg" alt="" /></a><br />Calcite (Detroit River Group, Devonian; quarry in Lucas County, Ohio, USA) / James St. John</span>

サイズ変更など

Gold and quartz (Placerville, 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/17207487751.html" target="_blank"><img src="http://farm8.static.flickr.com/7595/17207487751_98953ca74b_m.jpg" alt="" /></a><br />Gold and quartz (Placerville, California, USA) / James St. John</span>

サイズ変更など

Sulfidic basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 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/47088797734.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47088797734_496c951b4e_m.jpg" alt="" /></a><br />Sulfidic basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 3 / James St. John</span>

サイズ変更など

Yankee Doodle Tailings Pond (Butte, Montana, USA) 18
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/50964433831.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50964433831_0462727640_m.jpg" alt="" /></a><br />Yankee Doodle Tailings Pond (Butte, Montana, USA) 18 / James St. John</span>

サイズ変更など

Re-exhumed sub-fossil tree (died late 1700s) (Sandy River, Oxbow Park, Oregon, 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/37910010145.html" target="_blank"><img src="http://farm5.static.flickr.com/4525/37910010145_f8357cc75e_m.jpg" alt="" /></a><br />Re-exhumed sub-fossil tree (died late 1700s) (Sandy River, Oxbow Park, Oregon, USA) 45 / James St. John</span>

サイズ変更など

Galena-dolomite (Big Bear Orebody, Fletcher Mine, Reynolds County, Missouri, 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/26791262616.html" target="_blank"><img src="http://farm8.static.flickr.com/7036/26791262616_be11d7446e_m.jpg" alt="" /></a><br />Galena-dolomite (Big Bear Orebody, Fletcher Mine, Reynolds County, Missouri, USA) 1 / James St. John</span>

サイズ変更など

Cripple Creek Diatreme (Early Oligocene, 32 Ma; Cresson Pit, Cripple Creek Mining District, Colorado, USA) 38
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/49235894457.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49235894457_013b185292_m.jpg" alt="" /></a><br />Cripple Creek Diatreme (Early Oligocene, 32 Ma; Cresson Pit, Cripple Creek Mining District, Colorado, USA) 38 / James St. John</span>

サイズ変更など

Alunite (Miocene, 21 Ma; Marysvale area, Utah, 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/32244268115.html" target="_blank"><img src="http://farm1.static.flickr.com/324/32244268115_2e8da5e69b_m.jpg" alt="" /></a><br />Alunite (Miocene, 21 Ma; Marysvale area, Utah, USA) / James St. John</span>

サイズ変更など

Fluorite vein (Cripple Creek Diatreme, Early Oligocene, 32 Ma; Cresson Pit, Cripple Creek Mining District, Colorado, USA) 9
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/49228644653.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49228644653_054a278dd5_m.jpg" alt="" /></a><br />Fluorite vein (Cripple Creek Diatreme, Early Oligocene, 32 Ma; Cresson Pit, Cripple Creek Mining District, Colorado, USA) 9 / James St. John</span>

サイズ変更など

Salton Sea Mud Volcanoes — No. 3
by Caveman Chuck

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/4224028098.html" target="_blank"><img src="http://farm5.static.flickr.com/4018/4224028098_46f3bdf4be_m.jpg" alt="" /></a><br />Salton Sea Mud Volcanoes — No. 3 / Caveman Chuck</span>

サイズ変更など

Pyrite (Huanzala Mine, Peru) 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/18976466259.html" target="_blank"><img src="http://farm1.static.flickr.com/554/18976466259_55932ff38c_m.jpg" alt="" /></a><br />Pyrite (Huanzala Mine, Peru) 2 / James St. John</span>

サイズ変更など

Novaculite (= variably microporous metachert) (Arkansas Novaculite, Devonian-Mississippian; Hot Springs Mountain Anticline, ZigZag Mountains, 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/15258251444.html" target="_blank"><img src="http://farm9.static.flickr.com/8682/15258251444_665381dcd8_m.jpg" alt="" /></a><br />Novaculite (= variably microporous metachert) (Arkansas Novaculite, Devonian-Mississippian; Hot Springs Mountain Anticline, ZigZag Mountains, Arkansas, USA) / James St. John</span>

サイズ変更など

Pyrite in Silurian dolostone (Duff Quarry, Huntsville, Ohio, 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/40427934464.html" target="_blank"><img src="http://farm1.static.flickr.com/794/40427934464_cb007a2106_m.jpg" alt="" /></a><br />Pyrite in Silurian dolostone (Duff Quarry, Huntsville, Ohio, USA) 4 / James St. John</span>

サイズ変更など

Adamite (Ojuela Mine, Durango, Mexico)
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/31327591263.html" target="_blank"><img src="http://farm1.static.flickr.com/608/31327591263_b31f0879db_m.jpg" alt="" /></a><br />Adamite (Ojuela Mine, Durango, Mexico) / James St. John</span>

サイズ変更など

Hydrothermal veins & altered Butte Quartz Monzonite (Interstate 15 roadcut east of Butte, Montana, USA) 50
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/51103329404.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51103329404_3d6bfe02d5_m.jpg" alt="" /></a><br />Hydrothermal veins & altered Butte Quartz Monzonite (Interstate 15 roadcut east of Butte, Montana, USA) 50 / James St. John</span>

サイズ変更など

Chalcopyrite-pyrrhotite (Late Cretaceous; Cable Mine, ~1.4 miles east of Georgetown, Deer Lodge County, western Montana, 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/15315458003.html" target="_blank"><img src="http://farm8.static.flickr.com/7518/15315458003_23dfa242e8_m.jpg" alt="" /></a><br />Chalcopyrite-pyrrhotite (Late Cretaceous; Cable Mine, ~1.4 miles east of Georgetown, Deer Lodge County, western Montana, USA) 4 / James St. John</span>

サイズ変更など

Galena-dolomite (Big Bear Orebody, Fletcher Mine, Reynolds County, Missouri, 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/26220162614.html" target="_blank"><img src="http://farm8.static.flickr.com/7610/26220162614_f9ddc60fa7_m.jpg" alt="" /></a><br />Galena-dolomite (Big Bear Orebody, Fletcher Mine, Reynolds County, Missouri, USA) 4 / James St. John</span>

サイズ変更など

Hot Creek (Long Valley Caldera, California, USA) 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/52293612131.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52293612131_e6d646a97b_m.jpg" alt="" /></a><br />Hot Creek (Long Valley Caldera, California, USA) 3 / James St. John</span>

サイズ変更など

Gold ore (auriferous altered rhyolite) (Golden Wonder Vein, Late Oligocene, 27.5 Ma; Golden Wonder Mine, San Juan Mountains, Colorado, 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/25246150567.html" target="_blank"><img src="http://farm5.static.flickr.com/4762/25246150567_669b9966ef_m.jpg" alt="" /></a><br />Gold ore (auriferous altered rhyolite) (Golden Wonder Vein, Late Oligocene, 27.5 Ma; Golden Wonder Mine, San Juan Mountains, Colorado, USA) 2 / James St. John</span>

サイズ変更など

Mud Volcano (29 August 2011) 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/14512892391.html" target="_blank"><img src="http://farm3.static.flickr.com/2937/14512892391_d02ff7bcdd_m.jpg" alt="" /></a><br />Mud Volcano (29 August 2011) 1 / James St. John</span>

サイズ変更など

Porphyritic phonolite (Cripple Creek Diatreme, Early Oligocene, 32 Ma; Ironclad area, Cripple Creek Mining District, Colorado, 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/49241696272.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49241696272_59fa35360f_m.jpg" alt="" /></a><br />Porphyritic phonolite (Cripple Creek Diatreme, Early Oligocene, 32 Ma; Ironclad area, Cripple Creek Mining District, Colorado, USA) 2 / James St. John</span>

サイズ変更など

Turgite (Graves Mountain, Georgia, USA) 16
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/51121181549.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51121181549_afa4d464cc_m.jpg" alt="" /></a><br />Turgite (Graves Mountain, Georgia, USA) 16 / James St. John</span>

サイズ変更など

Cobaltite (Frontier Mine, Ontario, Canada) 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/26233803605.html" target="_blank"><img src="http://farm2.static.flickr.com/1671/26233803605_f9a1fafd3d_m.jpg" alt="" /></a><br />Cobaltite (Frontier Mine, Ontario, Canada) 2 / James St. John</span>

サイズ変更など

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