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Opal-AN from
Presidio County, Texas, USA


Locality type:County
Classification
Species:Opal var: Opal-AN
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Calcite1 photo of Opal-AN associated with Calcite at this locality.
Chalcedony1 photo of Opal-AN associated with Chalcedony at this locality.
Data
Mineral Data:Click here to view Opal-AN data
Locality Data:Click here to view Presidio County, Texas, USA
Data Identifiers
Mindat Occurrence Record ID:1356923
Long-form Identifier:1:3:1356923:9
GUID (UUID V4):aa4da318-42db-479d-b2a6-0557ff339b7c
References
Reference Search (possible matching items)
Book (volume)
Plains, wells drilled deep into this unit provide an inexhaustible supply of cold artesian, Rocky Mountain...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...tributary gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE:  area ridges, slopes, stream...stream beds, etc. petrified wood, wood opal;  along the Grand R. though entire Co., regional banks, breaks
Book (volume)
concerned, Ohio is unique in but a single gemstone, an exceptionally high quality, colorful flint that is...chert, translucent chalcedony, jasp-agate and common opal, rivaling in beauty the Arizona agatized wood. This...ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE
Book (volume)
concerned, Ohio is unique in but a single gemstone, an exceptionally high quality, colorful flint that is...chert, translucent chalcedony, jasp-agate and common opal, rivaling in beauty the Arizona agatized wood. This...ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE
Book
recognized as an authority in the lapidary field. Beginning with a description of agate, he proceeds to an interesting...ties and forms of quartz gems other than agate, opal and its varieties, and petrified wood a great favorite...tell abot1t otl1er Cttiartz varieties st1ch as the opal, jasper, ancl petrified wood; a11d to give l1in1...received, and one al,vays fears that the na111e of an in1portant aclviser may be left out. Ho,vever, in...12 were also const1lted. Nlany other sot1rces in an extensive library on the st1bject were const1lted
Book (volume)
review of deposits, a helpful geographical index, and an exceptionally complete listing of books and arucles...America has developed into a major exporter rather than an importer. A VAN NOSTRAND REINHOLD BOOK . Digitized...AMERICA In Iwo Volumes Volume | JOHN SINKANKAS [aN] VAN New NOSTRAND York Cincinnati REINHOLD Toronto...neat erie ra 8 ‘y - ml 3 ee pon * : c= : an vi 5 = fii? i a j — » ya y _— ’* : ...loan of photographs of Tampa Bay silicified coral. An outstanding compilation of Mexican gemstone information
 
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