Ospinsk is an area in Russia well-known for mining the highest quality green nephrite in the world. However, the chatoyant green nephrite found here has not been studied to date. This study explores the mineralogy, geochemistry, and petrogenesis of chatoyant green nephrite collected from Ospinsk using polarizing microscope back-scattered electron images, scanning electron microscopy, Fourier transform infrared spectrometry, laser Raman spectroscopy, electron microprobe analysis, and laser ablation inductively coupled plasma mass spectrometry, and compares them with S-type green nephrite from other regions of the world. Tremolite is the main mineral constituent, and chromite, chlorite, graphite, and magnetite are accessory minerals in the samples. The chatoyant green nephrite from Ospinsk is serpentinite-related green nephrite. The Ti content of the chatoyant green nephrite from Ospinsk is significantly higher than that of green nephrite from other places. The chatoyant green nephrite d
Scientific research on the Chang e-5 lunar samples has yielded fruitful results archyde.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from archyde.com Daily Mail and Mail on Sunday newspapers.
The extinction of the dinosaurs could be attributed in part to a reduction in biological diversity, instead of being caused purely by major natural disasters, according to recent research.