Taxonomy term

mineral resource of the month

Energy Notes: May 2012-2013

Oil and petroleum imports data are preliminary numbers taken from the American Petroleum Institute’s Monthly Statistical Report. For more information visit www.api.org.

 
19 Sep 2013

Mineral Resource of the Month: Lithium

Lithium, the lightest of all metallic elements, has unique properties that have led to its use in a diverse array of applications. For many years, most lithium was used in the production of ceramics, glass and aluminum. More recently, the market for lithium has shifted toward batteries for consumer electronics and electric vehicles.

 
13 Sep 2013

Mineral Resource of the Month: Kyanite

Kyanite and the related minerals andalusite and sillimanite are anhydrous aluminum silicate polymorphs with the same chemical formula, but with different crystal structures and physical properties. These minerals form during metamorphism of clay-bearing sedimentary rocks or in pegmatites. In the United States, where kyanite is prevalent, these three minerals comprise the kyanite minerals group. It is also known as the “sillimanite group” where sillimanite is more common, particularly in India. The three minerals form under slightly different conditions and rarely occur together. They are composed of about 63 percent alumina and 37 percent silica. When “calcined,” or heated to 1,250 to 1,500 degrees Celsius, they convert to about 88 percent mullite and 12 percent silica (the percentages depend on grain size, impurities present and rate of temperature increase). 

 
13 Aug 2013

Energy Notes: April 2012-2013

Oil and petroleum imports data are preliminary numbers taken from the American Petroleum Institute’s Monthly Statistical Report. For more information visit www.api.org.

 
19 Jul 2013

Mineral Resource of the Month: Bismuth

Bismuth is a brittle, silvery-white metal with a low melting point and a high density approaching that of lead. Alloys of the metal with lead and tin are known to have been used since the Middle Ages. The metal was referred to as wismuth, and at the end of the 16th century, Georgus Agricola, an early mineralogist, Latinized the Germanic name to bisemutum. 

 
13 Jul 2013

Energy Notes: February 2012-2013

Oil and petroleum imports data are preliminary numbers taken from the American Petroleum Institute’s Monthly Statistical Report. For more information visit www.api.org.

 
19 Jun 2013

Mineral Resource of the Month: Nickel

People have mined nickel-rich ores for more than 2,300 years. The ores were first used to produce an alloy that ancient Chinese artisans called “pai-t’ung.” This alloy, known today as “white copper,” is typically composed of 70 percent copper, 20 percent nickel and 10 percent zinc. Cupronickel alloys were used in coins as early as 235 B.C. and still are today. However, it was not until 1751 that Axel Fredrik Cronstedt identified nickel as a unique chemical element. 

 
13 Jun 2013

Energy Notes: January 2012-2013

Oil and petroleum imports data are preliminary numbers taken from the American Petroleum Institute’s Monthly Statistical Report. For more information visit www.api.org.

 
19 May 2013

Mineral Resource of the Month: Barite

The mineral barite (barium sulfate), also known as barytes, is most commonly found in hydrothermal veins and as veins in limestone. It is very dense (it has a high specific gravity) and is relatively soft. Those properties make it an excellent weighting agent in drilling muds for petroleum wells. In fact, worldwide, oil and gas drilling account for 85 to 90 percent of barite consumption. In the U.S., about 95 percent of barite is used by petroleum well-drilling markets; the remaining 5 percent in such industrial end uses as barium chemicals (which, for example, a person might drink prior to a medical procedure), filler in paint and plastics, powder coatings, friction products such as brake pads for cars and trucks, and heavy aggregate for radiation shielding. 

 
13 May 2013

Energy Notes: December 2011-2012

Oil and petroleum imports data are preliminary numbers taken from the American Petroleum Institute’s Monthly Statistical Report. For more information visit www.api.org.

 
19 Apr 2013

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