GEMOLOGY, MINERALOGY, AND SPECTROSCOPY OF GEM-QUALITY DIOPSIDE FROM PAKISTAN AND RUSSIA: NEW INSIGHTS FOR THE CHROMOGENIC MECHANISM AND POSSIBLE ORIGIN

Green diopside is currently popular in the jewelry market due to aptamil allerpro its attractive color and excellent transparency.Gem-quality diopsides are mainly sourced from Pakistan, Italy, Russia, and other places.The color, geographic origin, and formation mechanism are the main factors affecting the value of gemstones, which can be determined

Stage-wise precipitation evolution over East Asia, primarily from spring to summer, is influenced by nearby monsoons and can be topographically driven.Corresponding to the onset of the Asian summer monsoon circulation, the Meiyu-Baiu occurs rapidly in May, replacing the East Asian spring rains.The Meiyu-Baiu rapidly terminates in late July due to t

This study aims to understand the fluctuations observed in Hurricane Irma (2017), which change the tangential wind speed and the size of the radius of maximum surface wind and therefore affect short-term destructive potential.Intensity fluctuations observed during a period of rapid intensification of Hurricane Irma between 4 and 6 September 2017 ar