Introduction: Visakhapatnam District Is One of the North Eastern Coastal Districts of Andhra Pradesh and It Lies Betwe
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Introduction: Visakhapatnam District is one of the North Eastern Coastal districts of Andhra Pradesh and it lies between 17o - 15' and 18o-32' Northern latitude and 18o - 54' and 83o - 30' in Eastern longitude. It is bounded on the North partly by the Orissa State and partly by Vizianagaram District, on the South by East Godavari District, on the West by Orissa State and on the East by Bay of Bengal. MINERALS The District has mineral deposits of Bauxite Apatite (Rock Phosphate) Calcite, Crystaline limestone confined to tribal tracts. Bauxite deposits at Sapparla, Jerrila and Gudem of G.K.Veedhi Mandal are considered to be the largest in the country. Bauxite deposits are also identified at Galikonda, Katuki, Chittemgodndi of Araku group deposits, Katamrajukonda of Gurthedu sub-group of deposits. Phosphate Apatite is avilable in Kasipatnam village of Ananthagiri mandal. Rich deposits of Crystaline limestone and Calcite are mapped in Borra Caves and along the Valley up to Araku from Borra and around Valasi village of Ananthagiri mandal. Ruby Mica is another mineral available in the District essential for electrical and electronic industries. The mineral occurs in the form of Phologopite and is confined to Borra tract. Quartz is another mineral found mostly in Bheemunipatnam, Padmanabham, Devarapalli, K.Kotapadu and Ananthagiri mandals. Vermiculate found near Kasipatnam of Ananthagiri mandal. Clay deposits near Malivalasa of Araku mandal are identified. Limeshell useful for manufacture of chemical grade lime is also available in the district. Red and Yellow ochre deposits are also identified in Araku and Ananthagiri mandals. Figure 1: Geology of Andhra Pradesh Figure 2: Geology of Visakhapatnam District Figure 3: Geology of Borra, Ananthagiri mandalam, Visakhapatnam. .