nodules

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詳しくはクリエイティブ・コモンズ・ライセンスの利用についてをご覧ください。

Agate (Borden Formation, Lower Mississippian; eastern Kentucky, USA) 11
by James St. John

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/32632652021.html" target="_blank"><img src="http://farm1.static.flickr.com/742/32632652021_fe8b30c492_m.jpg" alt="" /></a><br />Agate (Borden Formation, Lower Mississippian; eastern Kentucky, USA) 11 / James St. John</span>

サイズ変更など

Flint-knapped spearpoint 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/52142737999.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52142737999_328f074c73_m.jpg" alt="" /></a><br />Flint-knapped spearpoint 3 / James St. John</span>

サイズ変更など

Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, 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/34651173151.html" target="_blank"><img src="http://farm5.static.flickr.com/4270/34651173151_79ef41e934_m.jpg" alt="" /></a><br />Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, USA) 9 / James St. John</span>

サイズ変更など

Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, USA) 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/34651179201.html" target="_blank"><img src="http://farm5.static.flickr.com/4250/34651179201_718df79146_m.jpg" alt="" /></a><br />Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, USA) 6 / James St. John</span>

サイズ変更など

Blocher Member-Morgan Trail Member boundary (New Albany Shale, Upper Devonian; Interstate 65 entrance ramp roadcut, Bullitt 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/52871683790.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52871683790_e4840e0881_m.jpg" alt="" /></a><br />Blocher Member-Morgan Trail Member boundary (New Albany Shale, Upper Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 2 / James St. John</span>

サイズ変更など

Black chert nodule (Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/42189051211.html" target="_blank"><img src="http://farm1.static.flickr.com/829/42189051211_803c62a27f_m.jpg" alt="" /></a><br />Black chert nodule (Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Oxidized ironstone nodule (Lower Mississippian or Lower Pennsylvanian; Rt. 16 roadcut northeast of Frazeysburg, 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/33389859336.html" target="_blank"><img src="http://farm4.static.flickr.com/3950/33389859336_0dd41f030f_m.jpg" alt="" /></a><br />Oxidized ironstone nodule (Lower Mississippian or Lower Pennsylvanian; Rt. 16 roadcut northeast of Frazeysburg, Ohio, USA) / James St. John</span>

サイズ変更など

Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 255
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/51532664153.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51532664153_8c5e33da0d_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 255 / James St. John</span>

サイズ変更など

Chert nodule horizon in fossiliferous limestones (Columbus Limestone, Middle Devonian; Marblecliff Quarry, Hilliard, 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/48384566297.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48384566297_2791214637_m.jpg" alt="" /></a><br />Chert nodule horizon in fossiliferous limestones (Columbus Limestone, Middle Devonian; Marblecliff Quarry, Hilliard, Ohio, USA) / James St. John</span>

サイズ変更など

Agate nodule ("Lake Superior Agate") (Jo Daviess County, 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/34651181261.html" target="_blank"><img src="http://farm5.static.flickr.com/4183/34651181261_8684761a32_m.jpg" alt="" /></a><br />Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, USA) 5 / James St. John</span>

サイズ変更など

Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, 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/34621074542.html" target="_blank"><img src="http://farm5.static.flickr.com/4172/34621074542_e9c1100cdf_m.jpg" alt="" /></a><br />Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, USA) 13 / James St. John</span>

サイズ変更など

Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, 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/34651169521.html" target="_blank"><img src="http://farm5.static.flickr.com/4221/34651169521_6e911a908b_m.jpg" alt="" /></a><br />Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, USA) 10 / James St. John</span>

サイズ変更など

Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, USA) 7
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/34743298056.html" target="_blank"><img src="http://farm5.static.flickr.com/4271/34743298056_43ab0545c3_m.jpg" alt="" /></a><br />Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, USA) 7 / James St. John</span>

サイズ変更など

Nelsonite (Laramie Anorthosite Complex, Mesoproterozoic, 1.43 Ga; Sybille Pit, Laramie Range, Wyoming, 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/50501071901.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50501071901_bb5d7a1530_m.jpg" alt="" /></a><br />Nelsonite (Laramie Anorthosite Complex, Mesoproterozoic, 1.43 Ga; Sybille Pit, Laramie Range, Wyoming, USA) 14 / James St. John</span>

サイズ変更など

Red alder (Alnus rubra) root nodule
by Holy Outlaw

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/16356265591.html" target="_blank"><img src="http://farm9.static.flickr.com/8588/16356265591_a457d89da4_m.jpg" alt="" /></a><br />Red alder (Alnus rubra) root nodule / Holy Outlaw</span>

サイズ変更など

Columbus Limestone (Middle Devonian; next to Millikin Falls, Columbus, 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/51781306691.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51781306691_fbf8869882_m.jpg" alt="" /></a><br />Columbus Limestone (Middle Devonian; next to Millikin Falls, Columbus, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 265
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/51581771961.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51581771961_47e39ca1be_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 265 / James St. John</span>

サイズ変更など

Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, 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/33974568193.html" target="_blank"><img src="http://farm5.static.flickr.com/4192/33974568193_03a2cf24c8_m.jpg" alt="" /></a><br />Agate nodule ("Lake Superior Agate") (Jo Daviess County, Illinois, USA) 4 / James St. John</span>

サイズ変更など

Agate (Borden Formation, Lower Mississippian; eastern Kentucky, 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/32756316565.html" target="_blank"><img src="http://farm1.static.flickr.com/367/32756316565_01e49b9d8c_m.jpg" alt="" /></a><br />Agate (Borden Formation, Lower Mississippian; eastern Kentucky, USA) 8 / James St. John</span>

サイズ変更など

Agate-quartz nodule (Buchanan Ranch, Harney County, east of Burns, 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/34416551650.html" target="_blank"><img src="http://farm5.static.flickr.com/4162/34416551650_584c219ace_m.jpg" alt="" /></a><br />Agate-quartz nodule (Buchanan Ranch, Harney County, east of Burns, Oregon, USA) 2 / James St. John</span>

サイズ変更など

Chert nodule ("Indiana hornstone") (probably Mississippian; Indiana, 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/45494089012.html" target="_blank"><img src="http://farm2.static.flickr.com/1949/45494089012_e6d5ebe981_m.jpg" alt="" /></a><br />Chert nodule ("Indiana hornstone") (probably Mississippian; Indiana, USA) 10 / James St. John</span>

サイズ変更など

Delaware Limestone (Middle Devonian; Indian Village Canyon, Columbus, 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/51789058266.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51789058266_0247c6f3d3_m.jpg" alt="" /></a><br />Delaware Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 4 / James St. John</span>

サイズ変更など

Precious opal (Shewa Province, Ethiopia) 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/30031741882.html" target="_blank"><img src="http://farm8.static.flickr.com/7504/30031741882_d4860ca19c_m.jpg" alt="" /></a><br />Precious opal (Shewa Province, Ethiopia) 6 / James St. John</span>

サイズ変更など

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>

サイズ変更など

Iron sulfide concretion (Ohio Shale, Upper Devonian; creek in the New Albany area, Ohio, 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/54192589273.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54192589273_ed405cd532_m.jpg" alt="" /></a><br />Iron sulfide concretion (Ohio Shale, Upper Devonian; creek in the New Albany area, Ohio, USA) 8 / James St. John</span>

サイズ変更など

Chaunograptus on a bryozoan-encrusted cephalopod (Upper Ordovician; Cincinnatian outcrop belt, 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/51612177168.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51612177168_e85c18099c_m.jpg" alt="" /></a><br />Chaunograptus on a bryozoan-encrusted cephalopod (Upper Ordovician; Cincinnatian outcrop belt, USA) 2 / James St. John</span>

サイズ変更など

Fossil gastropod in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, 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/51780773317.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51780773317_b129a15989_m.jpg" alt="" /></a><br />Fossil gastropod in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 259
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/51532414341.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51532414341_ceb47187e4_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 259 / James St. John</span>

サイズ変更など

White fossiliferous chert nodule in fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, 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/42183219401.html" target="_blank"><img src="http://farm1.static.flickr.com/825/42183219401_c71821cb29_m.jpg" alt="" /></a><br />White fossiliferous chert nodule in fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Solomon's Seal
by Giles Watson's poetry and prose

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/3573062548.html" target="_blank"><img src="http://farm4.static.flickr.com/3653/3573062548_ab9a05b3e3_m.jpg" alt="" /></a><br />Solomon's Seal / Giles Watson's poetry and prose</span>

サイズ変更など

Precious opal (Tertiary; Ethiopia) 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/53702034221.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/53702034221_4daf07ab1b_m.jpg" alt="" /></a><br />Precious opal (Tertiary; Ethiopia) 19 / James St. John</span>

サイズ変更など

Flint meganodule (Vanport Flint, Middle Pennsylvanian; roadcut along Brownsville Road, Flint Ridge, 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/21942265874.html" target="_blank"><img src="http://farm6.static.flickr.com/5631/21942265874_285bc53c71_m.jpg" alt="" /></a><br />Flint meganodule (Vanport Flint, Middle Pennsylvanian; roadcut along Brownsville Road, Flint Ridge, Ohio, USA) 5 / James St. John</span>

サイズ変更など

Fossil brachiopod in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, 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/51783242662.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51783242662_31feb444bf_m.jpg" alt="" /></a><br />Fossil brachiopod in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 4 / James St. John</span>

サイズ変更など

half of a chert nodule
by theilr

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/7940992092.html" target="_blank"><img src="http://farm9.static.flickr.com/8452/7940992092_b82bf9a038_m.jpg" alt="" /></a><br />half of a chert nodule / theilr</span>

サイズ変更など

Marcasite nodule (Ohio, 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/54102491270.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54102491270_320da9a34b_m.jpg" alt="" /></a><br />Marcasite nodule (Ohio, USA) 1 / James St. John</span>

サイズ変更など

Flint-knapped arrowhead 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/52139695417.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52139695417_689ea9c981_m.jpg" alt="" /></a><br />Flint-knapped arrowhead 2 / James St. John</span>

サイズ変更など

Blocher Member-Morgan Trail Member boundary (New Albany Shale, Upper Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, 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/52870725802.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52870725802_d98b54fd5d_m.jpg" alt="" /></a><br />Blocher Member-Morgan Trail Member boundary (New Albany Shale, Upper Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 1 / James St. John</span>

サイズ変更など

Variscite-crandallite nodule (Clay Canyon, Utah County, Utah, 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/53685794571.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/53685794571_10ef66ba64_m.jpg" alt="" /></a><br />Variscite-crandallite nodule (Clay Canyon, Utah County, Utah, USA) 3 / James St. John</span>

サイズ変更など

New Albany Shale over North Vernon Limestone (Upper Devonian over Middle Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, 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/52869065859.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52869065859_8d9fb0b707_m.jpg" alt="" /></a><br />New Albany Shale over North Vernon Limestone (Upper Devonian over Middle Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 5 / James St. John</span>

サイズ変更など

nodes
by bionicteaching

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/52579905150.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52579905150_81bdce10ab_m.jpg" alt="" /></a><br />nodes / bionicteaching</span>

サイズ変更など

Fossil brachiopod in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, 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/51784684949.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51784684949_2306a469d7_m.jpg" alt="" /></a><br />Fossil brachiopod in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Heart-Shaped Worlds, older than Earth itself
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/50275362792.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50275362792_2bb8211a29_m.jpg" alt="" /></a><br />Heart-Shaped Worlds, older than Earth itself / jurvetson</span>

サイズ変更など

Silicified rugose corals in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, 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/51784683744.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51784683744_6190f2fa78_m.jpg" alt="" /></a><br />Silicified rugose corals in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Flint-knapped arrowhead (Vanport Flint, Middle Pennsylvanian; Roy Miller Flint Quarries, Flint Ridge, 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/51427422703.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51427422703_5572629865_m.jpg" alt="" /></a><br />Flint-knapped arrowhead (Vanport Flint, Middle Pennsylvanian; Roy Miller Flint Quarries, Flint Ridge, Ohio, USA) 4 / James St. John</span>

サイズ変更など

Flint & rottenstone (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, 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/51581772226.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51581772226_984638c77f_m.jpg" alt="" /></a><br />Flint & rottenstone (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Silicified coral fossils (Middle Devonian; Auglaize Quarry, near Junction, 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/48887069693.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48887069693_d261d9788a_m.jpg" alt="" /></a><br />Silicified coral fossils (Middle Devonian; Auglaize Quarry, near Junction, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Black chert nodule (Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/41468105364.html" target="_blank"><img src="http://farm1.static.flickr.com/910/41468105364_90e79aa241_m.jpg" alt="" /></a><br />Black chert nodule (Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 5 / James St. John</span>

サイズ変更など

White fossiliferous chert nodule in fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, 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/41282339415.html" target="_blank"><img src="http://farm1.static.flickr.com/952/41282339415_9f1d9be99d_m.jpg" alt="" /></a><br />White fossiliferous chert nodule in fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 5 / James St. John</span>

サイズ変更など

Flint-knapped spearpoint (Vanport Flint, Middle Pennsylvanian; Roy Miller flint pit, Flint Ridge, 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/34874552316.html" target="_blank"><img src="http://farm5.static.flickr.com/4198/34874552316_7c09e04d11_m.jpg" alt="" /></a><br />Flint-knapped spearpoint (Vanport Flint, Middle Pennsylvanian; Roy Miller flint pit, Flint Ridge, Ohio, USA) 3 / James St. John</span>

サイズ変更など

Agate-filled geode (Las Choyas Geode Deposit, near-latest Eocene, ~35 Ma; Chihuahua, Mexico) 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/31939794373.html" target="_blank"><img src="http://farm1.static.flickr.com/481/31939794373_36e3886fd1_m.jpg" alt="" /></a><br />Agate-filled geode (Las Choyas Geode Deposit, near-latest Eocene, ~35 Ma; Chihuahua, Mexico) 10 / James St. John</span>

サイズ変更など

Black precious opal (Tertiary; Wollo Province, Ethiopia) 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/48163606917.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48163606917_ca20eaa174_m.jpg" alt="" /></a><br />Black precious opal (Tertiary; Wollo Province, Ethiopia) 6 / James St. John</span>

サイズ変更など

Agate-filled geode (Las Choyas Geode Deposit, near-latest Eocene, ~35 Ma; Chihuahua, Mexico) 15
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/32631089801.html" target="_blank"><img src="http://farm1.static.flickr.com/351/32631089801_342d142456_m.jpg" alt="" /></a><br />Agate-filled geode (Las Choyas Geode Deposit, near-latest Eocene, ~35 Ma; Chihuahua, Mexico) 15 / James St. John</span>

サイズ変更など

Black phosphorite nodule (Nagoryany Formation, near-uppermost Neoproterozoic; Ushytsya River area, Khmelnitska Province, Ukraine) 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/15323340672.html" target="_blank"><img src="http://farm4.static.flickr.com/3869/15323340672_deca1c0382_m.jpg" alt="" /></a><br />Black phosphorite nodule (Nagoryany Formation, near-uppermost Neoproterozoic; Ushytsya River area, Khmelnitska Province, Ukraine) 2 / James St. John</span>

サイズ変更など

Chert nodule (Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, 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/27317790507.html" target="_blank"><img src="http://farm1.static.flickr.com/903/27317790507_5d31e4a991_m.jpg" alt="" /></a><br />Chert nodule (Delaware Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 8 / James St. John</span>

サイズ変更など

Precious opal (Tertiary; Ethiopia) 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/31486483642.html" target="_blank"><img src="http://farm1.static.flickr.com/669/31486483642_54cb8f0e45_m.jpg" alt="" /></a><br />Precious opal (Tertiary; Ethiopia) 1 / James St. John</span>

サイズ変更など

Agate (Borden Formation, Lower Mississippian; eastern Kentucky, 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/32632649781.html" target="_blank"><img src="http://farm1.static.flickr.com/467/32632649781_0a278c2d5d_m.jpg" alt="" /></a><br />Agate (Borden Formation, Lower Mississippian; eastern Kentucky, USA) 19 / James St. John</span>

サイズ変更など

Black opal (Stayish Mine, Wollo Province, Ethiopia) 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/23558533300.html" target="_blank"><img src="http://farm6.static.flickr.com/5652/23558533300_1001f484fe_m.jpg" alt="" /></a><br />Black opal (Stayish Mine, Wollo Province, Ethiopia) 10 / James St. John</span>

サイズ変更など

Hydrophane opal (precious opal) immersed in water (Tertiary; Ethiopia) 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/32332088570.html" target="_blank"><img src="http://farm1.static.flickr.com/331/32332088570_d078cc817d_m.jpg" alt="" /></a><br />Hydrophane opal (precious opal) immersed in water (Tertiary; Ethiopia) 1 / James St. John</span>

サイズ変更など

Flint-knapped arrowhead (Vanport Flint, Middle Pennsylvanian; Roy Miller Flint Quarries, Flint Ridge, 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/32691060377.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/32691060377_87954bf088_m.jpg" alt="" /></a><br />Flint-knapped arrowhead (Vanport Flint, Middle Pennsylvanian; Roy Miller Flint Quarries, Flint Ridge, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, 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/33041345120.html" target="_blank"><img src="http://farm3.static.flickr.com/2879/33041345120_9c46a9410e_m.jpg" alt="" /></a><br />Flint (Vanport Flint, Middle Pennsylvanian; Nethers Flint Quarries, Flint Ridge, Ohio, USA) 58 / James St. John</span>

サイズ変更など

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