Antimony (Sb) is a hard, brittle, silver-white metal with a relatively high specific gravity (6.69) and a rela...

Bauxite is the principal ore of aluminum and is a mixture of aluminum oxides and hydroxides that formed from i...

Coal fields in Arkansas are located in the Arkansas River Valley between the western border of the state and R...

Crushed stone is an angular form of construction aggregate, made by breaking quarried rock into fragments that...

Almost 100 million years ago, in what is now Pike County, nature created one of the world’s most unusual dia...

Dimension stone is defined as rock that is removed from its original site to be used with minor alteration (ro...

The natural gas field known as the Fayetteville Shale, development of which began in 2004, became recognized a...

Gypsum is a mineral (CaSO4·2H2O) that occurs in nature as both a mineral and, when in massive form, a rock. M...

Industrial sand is a term normally applied to high-purity silica sand products with closely controlled sizing....

The history of lead and zinc mining in Arkansas is linked because ores of these two metals often occur togethe...

The Lost Louisiana Mine is an American legend about buried Spanish treasure that has been sought since the Vic...

The mining of manganese ore was a very important economic activity in Arkansas between 1849 and 1959. The regi...

Mining is defined as the extraction of valuable minerals or stone (mineral resources) from the earth, usually ...

The oil industry in Arkansas, which includes exploration and the production, refinement, and distribution of p...

Arkansas is one of a small number of places in the world with enough quartz crystals to justify commercial min...

Potassium nitrate, or saltpeter, is a naturally occurring mineral that is vital to the production of gunpowder...

The silver in Arkansas is mixed sulfide ores of lead, zinc, copper, and antimony in small, scattered deposits...

Tripoli is a microcrystalline form of quartz (SiO2) that is derived by the alteration of chert, chalcedony, or...

The United Mine Workers of America (UMWA) was at one time the most powerful union in the United States. The un...

Major deposits of vanadium were discovered in central Arkansas by Union Carbide’s Western Exploration Group ...

In 1833, the Washington National Monument Society was founded to create a memorial to the United States’ fir...