This research deals with the study of geochemical, petrographic and mineralogical properties Wolay Nephrite Occurrences in Kunar Province. is a relatively silicate mineral, Cyclosilicate, chemical composition Ca2(Mg,Fe)5Si8O22(OH)2 has monocline crystal shape. It found metamorphic rocks many parts world. nephrite area related to tectonic zone Jalalabad. Jalalabad located eastern part Afghanista...

Using XRF, TG-DTA, chemical and sedimentation analysis of the products processing magnetite quartzites from N Ore Processing Plant Krivorozhye, changes in phase composition samples four stages magnetic separation tailings were traced compared to a sample raw ore, potential impact dispersion process on environment was revealed. Thermogravimetric studies indicate transformations maghemite (250-34...

The aim of the present study was to investigate the frequencies of asbestos-related benign pleural diseases in villagers environmentally exposed to asbestos and the factors affecting these frequencies. A field-based, cross-sectional study was designed. In total, 991 villagers from 10 villages, randomly chosen from 67 villages with known use of asbestos-containing white soil in central Anatolia ...

A 298 W hen Iceland became the first country to ban most forms of asbestos in 1983, 1 global use hovered around 4.3–4.7 million metric tons per year. 2 Twenty-five years later, with several dozen countries now implementing some form of ban, 1 that number had dropped to 2.1 million metric tons. 3 Today, while demand has plummeted in most developed countries, it continues to rise in those countri...

The International Mineralogical Association's approved amphibole nomenclature has been revised in order to simplify it, make it more consistent with divisions generally at 50%, define prefixes and modifiers more precisely and include new amphibole species discovered and named since 1978, when the previous scheme was approved. The same reference axes form the basis of the new scheme and most nam...