mayenite

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Mayenite — (after Mayen, Germany), Ca12Al14O33, is a rare cubic mineral of cubic symmetry, originally reported from Eifel volcanic complex (Germany). It is also found at pyrometamorphic sites: e.g., in the Hatrurim Formation (Israel) and in some burned coal … Wikipedia
List of minerals K-M (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go… … Wikipedia
Cement — In the most general sense of the word, a cement is a binder, a substance which sets and hardens independently, and can bind other materials together. The name cement goes back to the Romans who used the term opus caementicium to describe masonry… … Wikipedia
Dodecacalcium hepta-aluminate — (12CaO.7Al2O3) occurs rarely in nature as the mineral mayenite. It is an important mineral phase in Calcium aluminate cements and is an intermediate in the manufacture of Portland cement. Its composition and properties have been the subject of… … Wikipedia
Oxide minerals — Oxide mineral exhibit at the Museum of Geology in South Dakota The oxide mineral class includes those minerals in which the oxide anion (O2 ) is bonded to one or more metal ions. The hydroxide bearing minerals are typically included in the oxide… … Wikipedia

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