Why Are Barytes, Feldspar, Mica And Quartz Now Classified As Major Minerals
Barytes, Feldspar, Mica, and Quartz minerals have been reclassified as major minerals category, the Ministry of Mines said in ...
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Amidst increased usage in tech sector, Barytes, Felspar, Mica, Quartz classified as major minerals
The Ministry of Mines has shifted minerals Barytes, Felspar, Mica and Quartz from the list of minor minerals to the category of major minerals.An official gazette notification was put out dated ...
The evolution of sunglasses from science to style (and back again)
The technology behind shades has changed over the centuries. From Inuit snow goggles to aviators to polarized sunglasses.