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Opal from Shawnee Domain, North America Plate

08895550017055134688442.jpg
Opal

Woodward Ranch, Alpine, Brewster County, Texas, USA
08294150014977404948705.jpg
Opal, etc.

Bill Moose Run, Columbus, Franklin County, Ohio, USA
07350340014948100229271.jpg
Opal, etc.

Alpine, Brewster County, Texas, USA
08623330014948100222037.jpg
Opal, etc.

Alpine, Brewster County, Texas, USA
05473300017055134689241.jpg
Opal

Woodward Ranch, Alpine, Brewster County, Texas, USA
00396640014982524424374.jpg
Opal, etc.

Bill Moose Run, Columbus, Franklin County, Ohio, USA
01315710014991010167435.jpg
Opal, etc.

Alpine, Brewster County, Texas, USA
09720260014991010156005.jpg
Opal, etc.

Alpine, Brewster County, Texas, USA
08895550017055134688442.jpg
Opal

Woodward Ranch, Alpine, Brewster County, Texas, USA
08294150014977404948705.jpg
Opal, etc.

Bill Moose Run, Columbus, Franklin County, Ohio, USA
07350340014948100229271.jpg
Opal, etc.

Alpine, Brewster County, Texas, USA
08623330014948100222037.jpg
Opal, etc.

Alpine, Brewster County, Texas, USA
USA
 
  • Alabama
    • Colbert County
      • Waterloo
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
  • Arkansas
    • Washington County
Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row.
  • Indiana
    • Henry County
Erd, Richard C., Greenberg, Seymour S. (1960) Minerals of Indiana. Bulletin 18. Indiana Geological Survey
  • Mississippi
    • Tippah County
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
    • Tishomingo County
Lowe, EN (1919) Mississippi its geology, geography, soils and resources. Mississippi State Geological Survey, Bulletin 14
  • Missouri
    • Wayne County
[Opal-A var. Opal-AN] Sherwood, Mark D., Williams, Glenn A. (1998) Missouri Mineral Locality Index. Rocks & Minerals, 73 (2) 98-117 doi:10.1080/00357529809603046
  • New York
    • Broome County
      • Deposit
[Opal-A var. Opal-AN] Rocks & Min.: 20:61.
    • Essex County
      • Crown Point Township
[Opal-A var. Opal-AN] Jensen (1978) Minerals of New York State
    • St. Lawrence County
      • De Kalb Township
        • Bigelow
Rocks & Minerals 85:250-259
  • Ohio
    • Franklin County
Carlson, Ernest H. (2015) Minerals of Ohio. Bulletin 69 (2nd ed.) Ohio Division of Geological Survey
      • Columbus
John Krygier specimens
  • Oklahoma
    • Kiowa County
      • Lugert
[Opal-A var. Opal-AN] R&M 72:4 pp 252-264
  • Tennessee
    • Overton County
Paris, Travis A. (2011) Tennessee Mineral Locality Index. Rocks & Minerals, 86 (4) 300-329 doi:10.1080/00357529.2010.517132
  • Texas
    • Armstrong County
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
U.S Geological Survey, Reston, Virginia
    • Brewster County
      • Alpine
www.austingemandmineral.org
Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622
http://www.omsinc.org/archives/Ore-cutts_Jan04.pdf
      • Davis Mountains
Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622
Dorothy M. Schlegal (1957) Gem Stones of the United States : USGS Bulletin 1042-G
    • Burnet County
[Opal-A var. Opal-AN] Personally collected by Franklin Roberts
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
    • Hudspeth County
      • Quitman Mountains
Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622
Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622
    • Jeff Davis County
      • Davis Mountains
Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622
    • Llano County
Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622
      • Bluffton
Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622
      • Kingsland Granite Company Quarry (Petrick Quarry)
[Opal-A var. Opal-AN] Self-collected by Franklin Roberts.
[Opal-A var. Opal-AN] Plumlee, Geoffrey S., Whitehouse-Veaux, Pamela Heald (1994) Mineralogy, paragenesis, and mineral zoning of the Bulldog Mountain vein system, Creede District, Colorado. Economic Geology, 89 (8). 1883-1905 doi:10.2113/gsecongeo.89.8.1883
November 1964
v. 59
no. 7
American Mineralogist 50:284
Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622
    • Presidio County
Smith, Arthur E. (1991) Texas Mineral Locality Index. Rocks & Minerals, 66 (3) 196-224 doi:10.1080/00357529.1991.11761622
    • Sutton County
      • Edwards Plateau
Onac, B., Veni, G. & White, W. B. (2001). Depositional environment for metatyuyamunite and related minerals from Caverns of Sonora, TX (USA). European Journal of Mineralogy, 13(1), 135-143.
  • West Virginia
    • Monongalia County
West Virginia Geological & Economic Survey
 
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