Industrial Importance of Black and White Sands

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Exploring the unique characteristics of black sand, the book delves into its various types, including heavy, glossy mixtures found in placer deposits and volcanic beach fragments. It highlights how black sand can appear on different colored beaches, especially post-storms, due to the sorting of sand grains by larger waves. Additionally, the text discusses white beach sand silica, its mineral composition, and historical industrial uses dating back thousands of years, emphasizing its significance in metallurgy and glassmaking.