Some sands contain magnetite, chlorite, glauconite, or gypsum. Sands full of magnetite are darkish to black in shade, as are sands derived from volcanic basalts and obsidian. Chlorite-glauconite bearing sands are generally green in color, as are sands derived from basaltic lava with a high olivine articles. Many sands, especially https://connerxacde.blazingblog.com/4010818/not-known-factual-statements-about-telangana-transport-department-vehicle-registration