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Three polytypes of chrysotile are known. [8] These are very difficult to distinguish in hand specimens, and polarized light microscopy [6] must normally be used. Some older publications refer to chrysotile as a group of minerals—the three polytypes listed below, and sometimes pecoraite as well—but the 2006 recommendations of the International Mineralogical Association prefer to treat it as ...
People can score anywhere from 10 to 50 points for each of the 24 strengths. A higher score on a scale indicates that the participant more strongly identifies with that scale's associated strength. Score reports are delivered to each paying participant at the completion of the survey.
The most common asbestiform mineral is chrysotile, commonly called "white asbestos", a magnesium phyllosilicate part of the serpentine group. Other asbestiform minerals include riebeckite , an amphibole whose fibrous form is known as crocidolite or "blue asbestos", and brown asbestos , a cummingtonite-grunerite solid solution series.
Serpentines find use in industry for several purposes, such as railway ballasts, building materials, and the asbestiform types find use as thermal and electrical insulation (chrysotile asbestos). The asbestos content can be released into the air when serpentine is excavated and if it is used as a road surface, forming a long-term health hazard ...
Questionnaires are frequently used in quantitative marketing research and social research. They are a valuable method of collecting a wide range of information from a large number of individuals, often referred to as respondents. What is often referred to as "adequate questionnaire construction" is critical to the success of a survey ...
Former U.S. Army convoy commander Stephen Robinson is part of a new crop of "urban farmers": veterans turning to farming after fighting.
Diopside is a precursor of chrysotile (white asbestos) by hydrothermal alteration and magmatic differentiation; [6] it can react with hydrous solutions of magnesium and chlorine to yield chrysotile by heating at 600 °C for three days. [7]
A questionnaire McMahon filled out to serve on a state board falsely said she had an education degree, according to a copy reviewed by USA TODAY. Trump's education secretary nominee once said she ...