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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 ]
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 Foundation is a non-profit organization established in 1987 by the largest valuation organizations in North America. The foundation was congressionally authorized to develop standards and qualifications for real estate appraisers under Title XI of the Financial Institutions Reform, Recovery, and Enforcement Act of 1989.
Uniform Standards of Professional Appraisal Practice (USPAP) can be considered the quality control standards applicable for real property, personal property, intangible assets, and business valuation appraisal analysis and reports in the United States and its territories. USPAP, as it is commonly known, was first developed in the 1980s by a ...
One of the most recognized professional organizations of real estate appraisers in America is the Appraisal Institute (AI). It was formed from the merger of the American Institute of Real Estate Appraisers and the Society of Real Estate Appraisers. Founded along with others in the 1930s, the two organizations merged in the 1990s to form the AI.
The American Society of Appraisers (ASA) is an American nonprofit organization which serves as a professional affiliation of appraisers. The organization is a multi-discipline, voluntary membership, trade association representing and promoting their member appraisers .
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This list includes those recognised minerals beginning with the letter I.The International Mineralogical Association is the international group that recognises new minerals and new mineral names; however, minerals discovered before 1959 did not go through the official naming procedure, although some minerals published previously have been either confirmed or discredited since that date.