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Entry Category: Mining - Starting with S

Saltpeter Mining

Potassium nitrate, or saltpeter, is a naturally occurring mineral that is vital to the production of gunpowder. Found in limestone caves in the Arkansas Ozarks, it became one of the state’s most important chemical industries during the Civil War due to the Confederacy’s demand for arms. Although this resource was a definite advantage for the Confederacy, problems with labor, security, and transportation made Arkansas’s saltpeter mines an ultimate failure. Saltpeter deposits were known by early Arkansas settlers long before the Civil War in Madison, Searcy, Independence, Marion, and Newton counties. A geographical survey was conducted by Dale David Owens from 1857 to 1860. His findings were published in 1860, and, by 1862, the Confederacy, looking to arm itself for the …

Sand and Gravel Mining

aka: Gravel and Sand Mining
Sand is usually defined as an accumulation of mineral grains in sizes ranging from one-sixteenth to two millimeters. Sand normally consists predominantly of quartz grains of variable degrees of roundness. Other mineral grains within the sand size range are also present and typically consist of feldspar, chert, ilmenite, and other less abundant resistant minerals. Gravel is considered to be an unconsolidated mixture of rock fragments, pebbles, cobbles, and boulders of indefinite size, but always larger than sand-sized materials. Gravel normally consists of a mixture of rock types, depending upon the original source, and may consist of various quartz rock varieties, such as chert, sandstone, novaculite, agate, and milky vein quartz, as well as limestone, dolostone, and other resistant rock types. …

Silver Mining

The silver in Arkansas is mixed sulfide ores of lead, zinc, copper, and antimony in small, scattered deposits in parts of the southern and eastern Ouachita Mountains. Most of the known mining activity involving silver took place between 1840 and 1927 and rarely resulted in profit to owners and operators. Sale of claims or mines to unsuspecting investors was usually the only route to profit. The mines opened in the 1800s were shallow, reaching maximum depths of less than 200 feet. Most of the deposits where mining was undertaken are clustered in three groups. One is along Kellogg Creek in Pulaski County, north of the Arkansas River. Deposits in another group were clustered along tributaries near the confluence of the north …