出典:Wikipedia
出典:『Wikipedia』 (2011/05/16 20:39 UTC 版)
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 dumps. The formula can be written as [Ca12Al14O32]O, which refers to the unique feature: anion diffusion process. Mayenite is also found as calcium aluminate in cement where its formula is also written as 12 CaO · 7 Al2O3 , or C12A7 in the cement chemist notation.
| ・Mayenite | |
| ・CCDC102B | |
| ・dayal | |
| ・nusz | |
| ・nonfactious | |
| ・DYT4 | |
| ・Sandra Ingerman | |
| ・Housono | |
| ・phenampromide | |
| ・asvab |