silicates

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Big Blue Bentonite (Sentinel Butte Formation, Upper Paleocene; Little Missouri Badlands, North Dakota, USA) 13
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/51866490791.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51866490791_6cc49c808b_m.jpg" alt="" /></a><br />Big Blue Bentonite (Sentinel Butte Formation, Upper Paleocene; Little Missouri Badlands, North Dakota, USA) 13 / James St. John</span>

サイズ変更など

Muscovitic-serpentinic marble (Precambrian; Black Hills Porcelain Clay and Marble Mining Company Quarry, Custer State Park, Black Hills, South Dakota, USA) 14
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/23410771764.html" target="_blank"><img src="http://farm2.static.flickr.com/1478/23410771764_eb7932c46f_m.jpg" alt="" /></a><br />Muscovitic-serpentinic marble (Precambrian; Black Hills Porcelain Clay and Marble Mining Company Quarry, Custer State Park, Black Hills, South Dakota, USA) 14 / James St. John</span>

サイズ変更など

Chalcopyrite with artificial tarnish 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/18131444000.html" target="_blank"><img src="http://farm9.static.flickr.com/8759/18131444000_871828a77b_m.jpg" alt="" /></a><br />Chalcopyrite with artificial tarnish 1 / James St. John</span>

サイズ変更など

Copper sheet (Mesoproterozoic, 1.05-1.06 Ga; White Pine Mine, Ontonagon County, 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/17276645006.html" target="_blank"><img src="http://farm8.static.flickr.com/7684/17276645006_647ef88aa9_m.jpg" alt="" /></a><br />Copper sheet (Mesoproterozoic, 1.05-1.06 Ga; White Pine Mine, Ontonagon County, Upper Peninsula of Michigan, USA) 2 / James St. John</span>

サイズ変更など

Octahedrite (Seymchan Meteorite) (Magadan District, Russia) 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/32970217788.html" target="_blank"><img src="http://farm8.static.flickr.com/7809/32970217788_0ab0f3c7e7_m.jpg" alt="" /></a><br />Octahedrite (Seymchan Meteorite) (Magadan District, Russia) 3 / James St. John</span>

サイズ変更など

Marcasite (Julcani Mining District, southern 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/50708352783.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50708352783_8601d30135_m.jpg" alt="" /></a><br />Marcasite (Julcani Mining District, southern Peru) 2 / James St. John</span>

サイズ変更など

Quartz (Palermo No. 1 Mine, Groton, New Hampshire, 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/34481754172.html" target="_blank"><img src="http://farm5.static.flickr.com/4163/34481754172_bdc8b01dfe_m.jpg" alt="" /></a><br />Quartz (Palermo No. 1 Mine, Groton, New Hampshire, USA) 3 / James St. John</span>

サイズ変更など

Mica crystals
by Mauro Cateb

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/7292579804.html" target="_blank"><img src="http://farm8.static.flickr.com/7088/7292579804_1ca0ced11e_m.jpg" alt="" /></a><br />Mica crystals / Mauro Cateb</span>

サイズ変更など

Pyrite-quartz (Japan) 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/19123169222.html" target="_blank"><img src="http://farm1.static.flickr.com/346/19123169222_9dc1240e6c_m.jpg" alt="" /></a><br />Pyrite-quartz (Japan) 2 / James St. John</span>

サイズ変更など

Silver (Mollie Gibson Mine, Aspen Mining District, Colorado, 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/17268078176.html" target="_blank"><img src="http://farm8.static.flickr.com/7712/17268078176_a4a58ed5e0_m.jpg" alt="" /></a><br />Silver (Mollie Gibson Mine, Aspen Mining District, Colorado, USA) 3 / James St. John</span>

サイズ変更など

Chiastolite schist (near Mariposa, Mariposa 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/27019690877.html" target="_blank"><img src="http://farm1.static.flickr.com/952/27019690877_b9088820db_m.jpg" alt="" /></a><br />Chiastolite schist (near Mariposa, Mariposa County, California, USA) / James St. John</span>

サイズ変更など

Fire Clay Tonstein below the Fire Clay Coal (Hyden Formation, Middle Pennsylvanian, 312 Ma; Hazard Community College roadcut, Hazard, 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/16980274456.html" target="_blank"><img src="http://farm9.static.flickr.com/8741/16980274456_e391231a86_m.jpg" alt="" /></a><br />Fire Clay Tonstein below the Fire Clay Coal (Hyden Formation, Middle Pennsylvanian, 312 Ma; Hazard Community College roadcut, Hazard, Kentucky, USA) 2 / James St. John</span>

サイズ変更など

Native silver (Smuggler Mine, Aspen Mining District, Colorado, 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/17098186629.html" target="_blank"><img src="http://farm9.static.flickr.com/8807/17098186629_48c2d36ecd_m.jpg" alt="" /></a><br />Native silver (Smuggler Mine, Aspen Mining District, Colorado, USA) 3 / James St. John</span>

サイズ変更など

Electrum on quartz (Tertiary; Smuggler-Union Mine, Telluride, 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/17087364847.html" target="_blank"><img src="http://farm8.static.flickr.com/7661/17087364847_080ac0c0dc_m.jpg" alt="" /></a><br />Electrum on quartz (Tertiary; Smuggler-Union Mine, Telluride, San Juan Mountains, Colorado, USA) 2 / James St. John</span>

サイズ変更など

Faceted diamond 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/17405506403.html" target="_blank"><img src="http://farm8.static.flickr.com/7767/17405506403_aa8e6d0691_m.jpg" alt="" /></a><br />Faceted diamond 8 / James St. John</span>

サイズ変更など

Native sulfur on siliceous sinter (Quaternary; Steamboat Springs, Nevada, 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/50688542311.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50688542311_60aac0518e_m.jpg" alt="" /></a><br />Native sulfur on siliceous sinter (Quaternary; Steamboat Springs, Nevada, USA) 3 / James St. John</span>

サイズ変更など

Silicon (Element # 14) 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/54579003673.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54579003673_db0c0771f3_m.jpg" alt="" /></a><br />Silicon (Element # 14) 2 / James St. John</span>

サイズ変更など

Amethyst (Brazil) 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/32669602241.html" target="_blank"><img src="http://farm1.static.flickr.com/391/32669602241_5549ac4ffa_m.jpg" alt="" /></a><br />Amethyst (Brazil) 10 / James St. John</span>

サイズ変更など

Grypania spiralis (Negaunee Iron-Formation, 2.11 Ga or 1.874 Ga; Empire Mine, SE of town of Ishpeming, Marquette County, Upper Peninsula of Michigan, USA) 28
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/14482151481.html" target="_blank"><img src="http://farm4.static.flickr.com/3870/14482151481_ea726a670d_m.jpg" alt="" /></a><br />Grypania spiralis (Negaunee Iron-Formation, 2.11 Ga or 1.874 Ga; Empire Mine, SE of town of Ishpeming, Marquette County, Upper Peninsula of Michigan, USA) 28 / James St. John</span>

サイズ変更など

Pyrite (iron mine in Lebanon County, Pennsylvania, 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/18506631824.html" target="_blank"><img src="http://farm4.static.flickr.com/3909/18506631824_f9d2ed4190_m.jpg" alt="" /></a><br />Pyrite (iron mine in Lebanon County, Pennsylvania, USA) / James St. John</span>

サイズ変更など

Rutilated quartz (Novo Horizonte, Bahia, Brazil) 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/34479910622.html" target="_blank"><img src="http://farm5.static.flickr.com/4155/34479910622_81ffae1b4e_m.jpg" alt="" /></a><br />Rutilated quartz (Novo Horizonte, Bahia, Brazil) 2 / James St. John</span>

サイズ変更など

Tiger's eye quartz 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/23747476832.html" target="_blank"><img src="http://farm1.static.flickr.com/601/23747476832_d51694cb4d_m.jpg" alt="" /></a><br />Tiger's eye quartz 2 / James St. John</span>

サイズ変更など

Galena (Frontenac Draper Lake Lead Mine, 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/18129150050.html" target="_blank"><img src="http://farm9.static.flickr.com/8811/18129150050_82c26b17c6_m.jpg" alt="" /></a><br />Galena (Frontenac Draper Lake Lead Mine, Ontario, Canada) / James St. John</span>

サイズ変更など

Azurite-malachite on gossan (Morenci Mine, Arizona, 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/27890565095.html" target="_blank"><img src="http://farm8.static.flickr.com/7122/27890565095_15074ed086_m.jpg" alt="" /></a><br />Azurite-malachite on gossan (Morenci Mine, Arizona, USA) / James St. John</span>

サイズ変更など

Big Blue Bentonite (Sentinel Butte Formation, Upper Paleocene; Little Missouri Badlands, North Dakota, USA) 19
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/51872212633.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51872212633_be37d57860_m.jpg" alt="" /></a><br />Big Blue Bentonite (Sentinel Butte Formation, Upper Paleocene; Little Missouri Badlands, North Dakota, USA) 19 / James St. John</span>

サイズ変更など

Silver (Mesoproterozoic, 1.05-1.06 Ga; Osceola Mine, Keweenaw Peninsula, Upper Peninsula of 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/17293988561.html" target="_blank"><img src="http://farm8.static.flickr.com/7695/17293988561_06522d1e10_m.jpg" alt="" /></a><br />Silver (Mesoproterozoic, 1.05-1.06 Ga; Osceola Mine, Keweenaw Peninsula, Upper Peninsula of Michigan, USA) 1 / James St. John</span>

サイズ変更など

Faceted diamonds 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/17406397903.html" target="_blank"><img src="http://farm6.static.flickr.com/5339/17406397903_186b9179a9_m.jpg" alt="" /></a><br />Faceted diamonds 5 / James St. John</span>

サイズ変更など

beryl display - gem collection - Smithsonian Natural History Museum
by Tim Evanson

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/6664409225.html" target="_blank"><img src="http://farm8.static.flickr.com/7009/6664409225_1d24fc635c_m.jpg" alt="" /></a><br />beryl display - gem collection - Smithsonian Natural History Museum / Tim Evanson</span>

サイズ変更など

Calcite-sphalerite-galena-pyrite 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/22973818003.html" target="_blank"><img src="http://farm6.static.flickr.com/5686/22973818003_12e41a88c7_m.jpg" alt="" /></a><br />Calcite-sphalerite-galena-pyrite 2 / James St. John</span>

サイズ変更など

Argentiferous galena (Laurium Silver Mines, Attica, Greece)
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/49365343353.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49365343353_a402cbc174_m.jpg" alt="" /></a><br />Argentiferous galena (Laurium Silver Mines, Attica, Greece) / James St. John</span>

サイズ変更など

Precious opal (Berbere Hill, Ethiopia) 36
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/52919352223.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52919352223_6ebbc7399e_m.jpg" alt="" /></a><br />Precious opal (Berbere Hill, Ethiopia) 36 / James St. John</span>

サイズ変更など

Epidote-rich cobble (Northeastern University Marine Station, Nahant Peninsula, Massachusetts, 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/49741544566.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49741544566_8332a4cf5f_m.jpg" alt="" /></a><br />Epidote-rich cobble (Northeastern University Marine Station, Nahant Peninsula, Massachusetts, USA) / James St. John</span>

サイズ変更など

Grypania spiralis (Negaunee Iron-Formation, 2.11 Ga or 1.874 Ga; Empire Mine, SE of town of Ishpeming, Marquette County, Upper Peninsula of Michigan, 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/14485469335.html" target="_blank"><img src="http://farm6.static.flickr.com/5578/14485469335_b792b2e754_m.jpg" alt="" /></a><br />Grypania spiralis (Negaunee Iron-Formation, 2.11 Ga or 1.874 Ga; Empire Mine, SE of town of Ishpeming, Marquette County, Upper Peninsula of Michigan, USA) 40 / James St. John</span>

サイズ変更など

Pyrite concretion (Anna Shale, Middle Pennsylvanian; Sparta area coal mine, Illinois, 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/26093023841.html" target="_blank"><img src="http://farm2.static.flickr.com/1620/26093023841_c25e79d771_m.jpg" alt="" /></a><br />Pyrite concretion (Anna Shale, Middle Pennsylvanian; Sparta area coal mine, Illinois, USA) 1 / James St. John</span>

サイズ変更など

Precious opal (Virgin Valley Formation, Middle Miocene; Virgin Valley, northwesern Nevada, 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/33716048314.html" target="_blank"><img src="http://farm5.static.flickr.com/4171/33716048314_97af018743_m.jpg" alt="" /></a><br />Precious opal (Virgin Valley Formation, Middle Miocene; Virgin Valley, northwesern Nevada, USA) 2 / James St. John</span>

サイズ変更など

Turquoise (Ithaca Peak Mine, near Kingman, Arizona, 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/51101671149.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51101671149_b6802e6213_m.jpg" alt="" /></a><br />Turquoise (Ithaca Peak Mine, near Kingman, Arizona, USA) 1 / James St. John</span>

サイズ変更など

Gold - Little Highlander Nugget (replica) (Victoria, Australia)
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/17261149725.html" target="_blank"><img src="http://farm8.static.flickr.com/7679/17261149725_6d94289e32_m.jpg" alt="" /></a><br />Gold - Little Highlander Nugget (replica) (Victoria, Australia) / James St. John</span>

サイズ変更など

Millerite in geode (Harrodsburg, Indiana, 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/18677393129.html" target="_blank"><img src="http://farm4.static.flickr.com/3784/18677393129_769d755af6_m.jpg" alt="" /></a><br />Millerite in geode (Harrodsburg, Indiana, USA) 1 / James St. John</span>

サイズ変更など

Fire Clay Tonstein below the Fire Clay Coal (Hyden Formation, Middle Pennsylvanian, 312 Ma; Hazard Community College roadcut, Hazard, Kentucky, 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/16980271066.html" target="_blank"><img src="http://farm9.static.flickr.com/8688/16980271066_a6379d0ec2_m.jpg" alt="" /></a><br />Fire Clay Tonstein below the Fire Clay Coal (Hyden Formation, Middle Pennsylvanian, 312 Ma; Hazard Community College roadcut, Hazard, Kentucky, USA) 3 / James St. John</span>

サイズ変更など

Antimony (South Riverside, 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/17152151689.html" target="_blank"><img src="http://farm9.static.flickr.com/8830/17152151689_fc85b520b1_m.jpg" alt="" /></a><br />Antimony (South Riverside, California, USA) / James St. John</span>

サイズ変更など

Tabu Tabu Jasper (South Africa)
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/41889473312.html" target="_blank"><img src="http://farm1.static.flickr.com/904/41889473312_f7372ea1a9_m.jpg" alt="" /></a><br />Tabu Tabu Jasper (South Africa) / James St. John</span>

サイズ変更など

Opal (Opal Butte, Morrow County, Oregon, 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/53665664401.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/53665664401_12bcc19491_m.jpg" alt="" /></a><br />Opal (Opal Butte, Morrow County, Oregon, USA) 4 / James St. John</span>

サイズ変更など

Tarnished silver (Tertiary; Smuggler-Union Mine, Telluride, 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/16672205464.html" target="_blank"><img src="http://farm8.static.flickr.com/7693/16672205464_d33865a368_m.jpg" alt="" /></a><br />Tarnished silver (Tertiary; Smuggler-Union Mine, Telluride, San Juan Mountains, Colorado, USA) 2 / James St. John</span>

サイズ変更など

Pyrite crystal-lined vug in vuggy, sucrosic dolostone (Lockport Dolostone, Middle Silurian; National Lime & Stone Company Buckland Quarry, Auglaize County, Ohio, 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/19207337425.html" target="_blank"><img src="http://farm1.static.flickr.com/429/19207337425_b60c330ca6_m.jpg" alt="" /></a><br />Pyrite crystal-lined vug in vuggy, sucrosic dolostone (Lockport Dolostone, Middle Silurian; National Lime & Stone Company Buckland Quarry, Auglaize County, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Malachite and azurite (Morenci Mine, Arizona)
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/8458723909.html" target="_blank"><img src="http://farm9.static.flickr.com/8233/8458723909_f4b583c01f_m.jpg" alt="" /></a><br />Malachite and azurite (Morenci Mine, Arizona) / James St. John</span>

サイズ変更など

Cinnabar (Alameda 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/18853311691.html" target="_blank"><img src="http://farm6.static.flickr.com/5448/18853311691_b8ab6b694e_m.jpg" alt="" /></a><br />Cinnabar (Alameda County, California, USA) / James St. John</span>

サイズ変更など

Pyrite-sphalerite in marble (Precambrian; St. Joseph Lead Company mine, Balmat, New York State, 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/49961615977.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49961615977_30993f63a3_m.jpg" alt="" /></a><br />Pyrite-sphalerite in marble (Precambrian; St. Joseph Lead Company mine, Balmat, New York State, USA) 2 / James St. John</span>

サイズ変更など

Chalcopyrite on tennantite (Russia) 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/18165674858.html" target="_blank"><img src="http://farm8.static.flickr.com/7765/18165674858_9a41e1721f_m.jpg" alt="" /></a><br />Chalcopyrite on tennantite (Russia) 5 / James St. John</span>

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Marcasite (Shullsburg, Wisconsin, 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/19212427991.html" target="_blank"><img src="http://farm1.static.flickr.com/460/19212427991_732460c53a_m.jpg" alt="" /></a><br />Marcasite (Shullsburg, Wisconsin, USA) / James St. John</span>

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Grypania spiralis (Negaunee Iron-Formation, 2.11 Ga or 1.874 Ga; Empire Mine, SE of town of Ishpeming, Marquette County, Upper Peninsula of Michigan, 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/14482243701.html" target="_blank"><img src="http://farm3.static.flickr.com/2902/14482243701_dfbb546147_m.jpg" alt="" /></a><br />Grypania spiralis (Negaunee Iron-Formation, 2.11 Ga or 1.874 Ga; Empire Mine, SE of town of Ishpeming, Marquette County, Upper Peninsula of Michigan, USA) 18 / James St. John</span>

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Quartz with crystal casts (Skardu Division, Pakistan) 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/34540721342.html" target="_blank"><img src="http://farm5.static.flickr.com/4164/34540721342_d650786a5e_m.jpg" alt="" /></a><br />Quartz with crystal casts (Skardu Division, Pakistan) 3 / James St. John</span>

サイズ変更など

Faceted diamond 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/18026024455.html" target="_blank"><img src="http://farm6.static.flickr.com/5462/18026024455_bb85e8212e_m.jpg" alt="" /></a><br />Faceted diamond 9 / James St. John</span>

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Red quartz crystals lining void in specularite (Soudan Iron-Formation, Neoarchean, 2.722 Ga; Montana Stope, 27th level of the Soudan Mine, Soudan, Minnesota, USA) 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/22451345235.html" target="_blank"><img src="http://farm1.static.flickr.com/618/22451345235_01ed596408_m.jpg" alt="" /></a><br />Red quartz crystals lining void in specularite (Soudan Iron-Formation, Neoarchean, 2.722 Ga; Montana Stope, 27th level of the Soudan Mine, Soudan, Minnesota, USA) 8 / James St. John</span>

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Rhyolite (Palisade Rhyolite, North Shore Volcanic Group, Mesoproterozoic, 1096-1097 Ma; Rt. 1 roadcut just north of Ilgen City, Minnesota, 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/22990739259.html" target="_blank"><img src="http://farm6.static.flickr.com/5786/22990739259_73726399e3_m.jpg" alt="" /></a><br />Rhyolite (Palisade Rhyolite, North Shore Volcanic Group, Mesoproterozoic, 1096-1097 Ma; Rt. 1 roadcut just north of Ilgen City, Minnesota, USA) 5 / James St. John</span>

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Copper crystals (Mesoproterozoic, 1.05-1.06 Ga; Central Mine, Keweenaw County, Upper Peninsula of Michigan, 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/26747581152.html" target="_blank"><img src="http://farm8.static.flickr.com/7049/26747581152_da07134d4f_m.jpg" alt="" /></a><br />Copper crystals (Mesoproterozoic, 1.05-1.06 Ga; Central Mine, Keweenaw County, Upper Peninsula of Michigan, USA) 3 / James St. John</span>

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Pyrite concretion (Anna Shale, Middle Pennsylvanian; Sparta area coal mine, Illinois, 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/26093022071.html" target="_blank"><img src="http://farm2.static.flickr.com/1526/26093022071_383cb916ec_m.jpg" alt="" /></a><br />Pyrite concretion (Anna Shale, Middle Pennsylvanian; Sparta area coal mine, Illinois, USA) 5 / James St. John</span>

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Quartz geode (probably Indiana, 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/49742015367.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49742015367_82498c49fe_m.jpg" alt="" /></a><br />Quartz geode (probably Indiana, USA) 2 / James St. John</span>

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Silver (Mesoproterozoic, 1.05-1.06 Ga; Wolverine Mine, Upper Peninsula of 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/17090932498.html" target="_blank"><img src="http://farm8.static.flickr.com/7696/17090932498_10ddcfd8e0_m.jpg" alt="" /></a><br />Silver (Mesoproterozoic, 1.05-1.06 Ga; Wolverine Mine, Upper Peninsula of Michigan, USA) 1 / James St. John</span>

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Precious opal (Berbere Hill, Ethiopia) 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/52917664457.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52917664457_cbe4f4e276_m.jpg" alt="" /></a><br />Precious opal (Berbere Hill, Ethiopia) 4 / James St. John</span>

サイズ変更など

Pyrite on quartz 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/23187308629.html" target="_blank"><img src="http://farm6.static.flickr.com/5653/23187308629_19c7973bbd_m.jpg" alt="" /></a><br />Pyrite on quartz 1 / James St. John</span>

サイズ変更など

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