Paragonite: Properties and Occurrences

Paragonite: Properties and Occurrences

Paragonite is a mineral, related to muscovite. It is a mica mineral similar to muscovite, a basic silicate of sodium and aluminum; a member of…
To Learn More About the Formation of the Increasingly Sought-After Rare Earth Elements, Researchers Have Created Synthetic Rocks

To Learn More About the Formation of the Increasingly Sought-After Rare Earth Elements, Researchers Have Created Synthetic Rocks

Researchers from Trinity College Dublin have created synthetic rocks and tested how they react to various climatic circumstances to throw new insight on the production…
Papagoite: Properties and Occurrences

Papagoite: Properties and Occurrences

Papagoite is a cyclosilicate mineral that is extremely rare. It is a calcium copper aluminum silicate hydroxide that can be found as a secondary mineral…
Panguite: Properties and Occurrences

Panguite: Properties and Occurrences

Panguite is a type of titanium oxide mineral that was discovered as an inclusion in the Allende meteorite in 2012 and was first described. The…
Panethite: Properties and Occurrences

Panethite: Properties and Occurrences

Panethite, chemical formula (Na,Ca)2(Mg,Fe)2(PO4)2, is a rare phosphate mineral found in only one meteorite on Earth. It was first discovered in the Dayton meteorite in…
Palygorskite: Properties and Occurrences

Palygorskite: Properties and Occurrences

Palygorskite, also known as attapulgite, is a magnesium aluminum phyllosilicate with the chemical formula (Mg,Al)2Si4O10(OH)•4(H2O) that occurs in a type of clay soil found in…
Boracite – a Magnesium Borate Mineral

Boracite – a Magnesium Borate Mineral

Boracite (Mg3B7O13Cl) is a magnesium borate mineral. In the orthorhombic – pyramidal crystal system, it appears as blue-green, colorless, gray, yellow to white crystals. Boracite…
Palladium – Properties and Occurrences

Palladium – Properties and Occurrences

Palladium has the chemical symbol Pd and the atomic number 46. It is a rare and gleaming silvery-white metal discovered by the English chemist William…
Painite: Properties and Occurrences

Painite: Properties and Occurrences

Painite is an extremely rare type of borate mineral. It was discovered in Myanmar by Arthur C.D. Pain, a British mineralogist and gem dealer, who…
Pabstite: Properties and Occurrences

Pabstite: Properties and Occurrences

Pabstite is a mineral composed of barium, tin, and titanium that can be found in contact metamorphosed limestone. It is a mineral of the benitoite…
Pääkkönenite: Properties and Occurrences

Pääkkönenite: Properties and Occurrences

Pääkkönenite is a metallic grey mineral with the molecular formula Sb2AsS2. It is named after Veikko Pääkkönen (1907–1980), a Finnish geologist. It is a fairly…
Speculum Metal

Speculum Metal

Speculum metal is a white brittle alloy composed of around two-thirds copper and one-third tin that may be polished to produce a highly reflecting surface.…
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