Asisite: Properties and Occurrence
Asisite (Formula- Pb7SiO8Cl2) is a yellow tetragonal mineral. It is a very rare lead oxyhalide found only at the Kombat mine. Asisite was named after…
Geographic Minerals
Ashoverite
Ashoverite is one of three polymorphs of zinc hydroxide, Zn(OH)2. It is a rare mineral first found in a limestone quarry near Ashover, Derbyshire, England,…
Ashburtonite
Ashburtonite is a rare lead copper silicate-bicarbonate mineral with formula: HPb4Cu2+4Si4O12 (HCO3)4(OH)4Cl. It contains tetragonal-dipyramidal blue mineral containing carbon, chlorine, copper, hydrogen, lead, oxygen, and…
Artroeite: Properties and Occurrence
Artroeite, formula – [PbAlF3(OH)2] is a mineral found in Arizona. It is named for the late American chemist Arthur Roe (1912–1993). The structure was solved by…
Artinite
Artinite is a hydrated magnesium carbonate mineral with formula: Mg2(CO3)(OH)2·3H2O. It is a somewhat rare carbonate mineral. It forms as a crust of acicular to…
Arthurite: Properties and Occurrence
Arthurite is a mineral composed of divalent copper and iron ions in combination with trivalent arsenate, phosphate and sulfate ions with hydrogen and oxygen. It…
Arsenopyrite: Properties and Occurrence
Arsenopyrite is an iron arsenic sulfide (FeAsS). It is the most prevalent mineral containing the element arsenic. It is an iron arsenic sulfide mineral which…
Arsenolite: Properties and Occurrence
Arsenolite is an arsenic mineral, chemical formula As4O6. It is formed as an oxidation product of arsenic sulfides. It is an uncommon mineral that occurs…
Arsenoclasite
Arsenoclasite (originally arsenoklasite) is a red or dark orange-brown mineral with formula Mn5(AsO4)2(OH)4. It is a mineral consisting of a basic manganese arsenate. It is…
Arseniosiderite: Properties and Occurrence
Arseniosiderite (formula- Ca2Fe3+3(AsO4)3O2·3H2O) is a rare arsenate mineral formed by the oxidation of other arsenic-containing minerals, such as scorodite or arsenopyrite. It is a rare…
Arsenic: Properties and Occurrence
Arsenic is a chemical element with symbol ‘As’ and atomic number 33. The element takes its name from the Latin word “arsenicum” or the Greek…
Armalcolite: Properties and Occurrence
Armalcolite is a titanium-rich mineral with the chemical formula (Mg, Fe2+)Ti2O5. These tiny gray crystals were named for astronauts Armstrong, Aldrin, and Collins, who collected…
Load More