Home > Secondary Minerals – May 24 > MS0696 Fejerite
Fejerite - Sold
- Mina Ojuela
- Mapimí
- Durango
- Mexico
- 2.7 by 2.3 by 2.1 cm –
Fejerite (IMA2012-014), Cu4FCl(OH)6, is the fluoride analog of claringbullite. The mineral was first noticed in early 2008, but not chemically analyzed until 2010. The chemical analysis revealed a fluorine content not characteristic of claringbullite, hence a new mineral was proposed and accepted by the International Mineralogical Association. This is a representative example with a 4 mm patch of platy blue crystals in massive cuprite. There is also malachite present. Rare stuff!