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" Graphite. — Graphite is abundant and pure in many localities in the Trap Mountains in Hot Spring county. It occurs also in the form of graphitic shale in Garland and Montgomery counties. Some of this material is... "
Annual Report of the Geological Survey of Arkansas ... - Side 260
av Arkansas. Geological Survey, 1887-1893 - 1888
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Minerals in Arkansas: Including a Review of Oil and Gas Conditions

Arkansas. Bureau of Mines, Manufactures, and Agriculture, Jim G. Ferguson - 1922 - 214 sider
...occurs also in the form of graphitic shale in Garland and Montgomery counties. Some of this material is of excellent quality, while some of it occurs in streaks...earthy matter. The impure varieties are available for paints. Drake reports the presence of graphitic Shale at the Dickinson brick yard in the southern part...
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