Graphite is disseminated as flakes, needles, and granules in gneisses and schists of various localities of the Eastern Ghats range, and is flaky to compact in veins that are generally concordant. It is associated with sulfides, manganese and iron oxides, calcite, and metamorphic silicates. The graphite in gneiss is believed to represent original syngenetic carbonaceous material, and the veins are attributed to concentration by hydrothermal solutions.

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