Catahoula formation opal

The Louisiana Opal, also known as the Louisiana Sand Opal, was briefly mined in the Catahoula Formation, which is located near Leesville. An extremely rare Louisiana opal Louisiana Opal is a form of sandstone in which grains of sand are held together by clear opal.I have question about Opal value. A number of years ago I bought a chunk of Louisiana opal from a local rock shop. What I got was a chunk of the cinnamon brown with lavender, green and a little blue fire. I recently read in the August issue of Rock & Gem magazine that Louisiana opal is now selling by the caret rather than by the pound as it was when I bought what I have. I took a piece back to ... Small amounts of a material called "Louisiana Opal" or "Louisiana Sand Opal" have been mined from the Catahoula Formation near Leesville, Vernon Parish, Louisiana. If you examine this material closely, you will find that it is a sandstone in which the sand grains are bound together by a cement of clear precious opal.Bozarth, S. R. (1992). Classification of opal phytoliths formed in selected dicotyledons native to the Great Plains. In G. J. Rapp & S. C. Mulholland (Eds.), Phytolith systematics. Emerging issues, vol 1. Advances in Archaeological and Museum Science (pp. 193–214). New York: Plenum Press. Google Scholar

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Gypsum and other gypsum type of glassy rocks come from this area as do fire agate some opal type of rocks to. East of the line from Fort Stockton gets you into the limestone area of Texas. The northern area of this region around the Menard area is the older limestone that has started to turn to chert rock which is harder and going toward flint.

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(Hay 1963). The Oligocene John Day Formation consists of 700 to 1000 m of rhyolitic and dacitic tuff and welded tuff, exposed over an area of at least 5000 km 2. In the thicker parts of the formation the upper 500 m contains glass, smectite, and opal, but no zeolite. Clinoptilolite, smectite, and celadonite are abundant in the lower 500 m. Miocene Catahoula Formation of western Louisiana, but this occurrence of precious opal is unique. The Catahoula Formation is composed of sand and sandstone with a “Small amounts of a material called “Louisiana Opal” or “Louisiana Sand Opal” have been mined from the Catahoula Formation near Leesville, Vernon Parish, Louisiana. If you examine this material closely, you will find that it is sandstone in which the sand grains are bound together by a cement of clear precious opal.


Opal She is a little timid at first but warms up quickly. She is currently going through our STAR Inmate Training Program where she is learning all her basic commands and so much more. Scope and Contents. These institutional records contain correspondence with professional organizations as well as state and national agencies and boards, classified files, personnel records, mining reports and notes, field trip records, drilling permits, laboratory analyses, publications including the UT Bulletin (1911-1960) and Texas Business Review (1941-1946), publication manuscripts ... Jack and I share the same 4th great-grandparents William Bucner and Sarah Ann Runnells Bishop So, Jack and I are 4th cousins Cuz Jackie. Additional BISHOP PAGES are listed at the bottom of this page

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