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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 ]
All four codes default to blank, that is: no NFPA code is present or shown. There is no specific text (just a link to the NFPA color section). Note that a blank is not the same as code "0". Code "0" is an explicit statement, while a blank is the absence of any statement. A blank can also be enforced by entering =-(hyphen).
The white "special notice" area can contain several symbols. The following symbols are defined by the NFPA 704 standard. OX: Oxidizer, allows chemicals to burn without an air supply (e.g., potassium perchlorate, ammonium nitrate, hydrogen peroxide). W: Reacts with water in an unusual or dangerous manner (e.g., caesium, sodium, diborane ...
Template: Mineral identification. 9 languages. ... Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide
IMA symbol of the mineral: Brt strunz Nickel-Strunz classification of the mineral (10 ed, MinDat) 9.BG.05 dana Dana classification of the mineral: 28.03.01.01 symmetry Hermann–Mauguin notation of the mineral's symmetry element, labeled: Space group: unit cell Unit cell dimensions and number (Z) of formula units per unit cell: molweight
Victims identified as artistic student and caring teacher. The tragic deaths of a teen student and substitute teacher at Abundant Life Christian School shook the tightly connected school community.
Hawthorn Quarry is located within the defined Hawthorn Beacon/Hill Mineral Consultation Area (MCA),which was first designated in 1981 and is now protected through saved County Durham Minerals Local Plan Policy (MLP) M14. Policy M14 states that development will only be permitted within or adjoining a Mineral Consultation Area including where it ...
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