(PDF) Economic Minerals of India - ResearchGateApr 9, 2017 . industries and are major inputs in industrial development. The management of .. Magnetite is a mineral and one of the main iron ores. With the.limonite mining companies in india,Mining - Lower Macungie Township Historical SocietyUntil recently, Lower Macungie Township's mining history was not well remembered. . nine iron companies in Lehigh County (nine more were in Northampton County), . One wharf was east of Macungie along present-day Indian Creek Road, and . These limonite ores (termed "valley ores") were always mixed with clay,.
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