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Mineral symbols (text abbreviations) are used to abbreviate mineral groups, subgroups, and species, just as lettered symbols are used for the chemical elements. The first set of commonly used mineral symbols was published in 1983 and covered the common rock-forming minerals using 192 two- or three-lettered symbols. [ 1 ]
At its organizational meeting held on January 30, 1989, the Appraisal Standard Board unanimously approved and adopted the original USPAP as the initial appraisal standards promulgated by ASB. USPAP may be amended, Interpreted, or retired by ASB after exposure to the users of appraisal services and the public in accordance with established rules ...
As of November 2024, the IMA - CNMNC List of Minerals lists 6,100 valid minerals, including 1,153 pre-IMA minerals (grandfathered), and 97 questionable minerals. [2] Also as of November 2024 [update] , the Mineralogical Society of America's Handbook of Mineralogy lists 5,663 species, [ 3 ] and the IMA Database of Mineral Properties/RRUFF ...
The Appraisal Institute (AI), headquartered in Chicago, Illinois, is an international association of professional real estate appraisers. [1] It was founded in January 1991 when the American Institute of Real Estate Appraisers (AIREA) and the Society of Residential Appraisers merged. The AIREA and the Society were respectively founded in 1932 ...
Title 30 of the United States Code outlines the role of mineral lands and mining in the United States Code. 30 U.S.C. ch. 1—United States Bureau of Mines; 30 U.S.C. ch. 2—Mineral Lands and Regulations in General; 30 U.S.C. ch. 3—Lands Containing Coal, Oil, Gas, Salts, Asphaltic Materials, Sodium, Sulphur, and Building Stone
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In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...