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Roy D I C M Sc Dr Ing F N I Superintending
The Mica Pegmatites
18 other sections not shown
50 feet 75 feet abandoned acres held acres is held alluvium Amghat band Bihar biotite Birmitrapur cent Chaganam Chetti coal seam country rocks deposits depth dewatered dolomite dressed mica east exposed exposures feet by 50 feet deep feet in width feet wide feldspathic biotite-schist flooded furlongs Gangpur Geological grade Gudur Hathibari hornblende-schist intrusive irrigation tank Jogipalli Kalichedu Lifripara limestone limestone and dolomite M. S. Krishnan Marupur Messrs mica books mica mining mica-schist mile stone mines comprise mining lease nala nearly Nellore district Nellore mica north-east occur open-cast outcrops output Panposh parallel pegmatites pegmatite strikes N.-S phyllites production prospecting quantities of mica quarry quartz quartzites Reddi reserved forest road Saidapuram samples Sankh river schistose schistose country schists shale shallow south-east south-west Sundargarh District surface taluk Talupur thick tons trenches trial excavations Turimerla underground Utukur vein village wide pegmatite yield