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Erdite - Occurrence, Properties, and Distribution

Erdite is a monoclinic-prismatic mineral composed of sulfur, sodium, oxygen, iron and hydrogen. It was first discovered in 1977 from the Coyote Peak diatreme, 16 miles SW of Orick, Humboldt Co. California.

5 Jun 2014

Macdonaldite - Occurrence, Properties, and Distribution

Macdonalite is a rare barium silicate mineral first discovered in 1965 from Big Creek - Rush Creek sanbornite deposit, Fresno Co., California. It was named for Grodon Andrew Macdonald, American volcanologist, University of Hawaii.

5 Jun 2014

Jeromite - Occurrence, Properties, and Distribution

Jeromite is an amorphous mineral composed of sulfur, selenium and arsenic. It was named after its place of discovery, United Verde Mine, Jerome, Arizona, USA.

5 Jun 2014

Iowaite - Occurrence, Properties, and Distribution

Iowaite is a trigonal-hexagonal scalenohedral mineral composed of oxygen, magnesium, iron, hydrogen and chlorine. It is a member of hydrotalcite group. The mineral was named after Sioux County, Iowa from where it was first discovered.

4 Jun 2014

Ardaite - Occurrence, Properties, and Distribution

Ardaite is a rare sulfosalt mineral discovered in 1980 from Madjarovo, Arda River, Bulgaria. It was named after its place of discovery.

4 Jun 2014

Nitratine – Occurrence, Properties and Distribution

Nitratine is the chemical Na analogue of niter. It is found in the form of efflorescence in the hot dry regions. It is named after the Nitrogen content in the chemical composition. It was discovered in the year 1821 in the Tarapaca region in Chile.

4 Jun 2014

Bandylite - Occurrence, Properties, and Distribution

Bandylite is a tetragonal-ditetragonal dipyramidal dark blue mineral comprised of oxygen, hydrogen, copper, chlorine and boron. It was named after Dr. Mark Chance Bandy, an American mining engineer who first discovered the mineral.

4 Jun 2014

Alunite - Occurrence, Properties, and Distribution

Alunite is a sulfate mineral first discovered in Monti della Tolfa, Rome in the 15^th century. It is rarely found in the massive material cavities as distinct crystals. It occurs as veins and replacement masses in rhyolite, trachyte and other potassium rich volcanic rocks.

4 Jun 2014

Barrerite - Occurrence, Properties, and Distribution

Barrerite is a member of the zeolite family and one of the rarest zeolite. It was named after Richard Maling Barrer, a New Zealand-born British teacher who studied about the chemistry of zeolites.

4 Jun 2014

Callaghanite - Occurrence, Properties, and Distribution

Callaghanite is monoclinic-prismatic mineral consisting of oxygen, magnesium, hydrogen, copper and carbon. It was named after Honors Dr. Eugene Callaghan, Director of the New Mexico Bureau of Mines, Socorro, New Mexico, USA for his work on magnesite deposits.

4 Jun 2014