Wilancookite
| Wilancookite | |
|---|---|
|
Wilancookite from Ponte do Piauí claim, Piauí valley, Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Brazil | |
| General | |
| Category | Phosphate |
| Formula (repeating unit) | (Ba,K,Na)8(Ba,Li,[])6Be24P24O96•32H2O |
| Crystal system | Isometric |
| Unit cell | a=13.54 Å (approximated) |
| Identification | |
| Crystal symmetry |
Isometric - tetartoidal Point group 23 Space group I23 |
| References | [1] |
Wilancookite is a very rare and complex beryllium phosphate with the formula (Ba,K,Na)8(Ba,Li,[])6Be24P24O96•32H2O. Wilancookite was discovered in pegmatite of the Lavra Ponte do Piauí complex, Jequitinhonha, Minas Gerais, Brazil.[1][2]
Relation to other minerals
Wilancookite is related to pahasapaite,[1] a lithium-bearing beryllium phosphate mineral.[3]
References
- 1 2 3 Menezes Filho, L.A.D., Hatert, F.,Philippo, S., Ottolini, L., Dal Bo, F., Scholz, R., Chaves, M.L.S.C., Yang, H., and Downs, R.T., 2015. Wilancookite, IMA 2015-034. CNMNC Newsletter No. 27, October 2015, 1228; Mineralogical Magazine 79, 1229–1236
- ↑ "Wilancookite: Wilancookite mineral information and data". Mindat.org. Retrieved 2016-03-13.
- ↑ "Pahasapaite: Pahasapaite mineral information and data". Mindat.org. Retrieved 2016-03-13.
This article is issued from Wikipedia - version of the Wednesday, April 27, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.