Chemistry:Wilancookite
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Short description: Very rare and complex beryllium phosphate
| 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,[ ]) 6Be 24P 24O 96 · 32H2O |
| Crystal system | Isometric |
| Crystal class | Tetartoidal (23) H-M symbol: (23) |
| Space group | I23 |
| Unit cell | a = 13.54 Å (approximated) |
| Identification | |
| References | [1] |
Wilancookite is a very rare and complex beryllium phosphate with the chemical formula (Ba,K,Na)
8(Ba,Li,[ ])
6Be
24P
24O
96 · 32H2O. Wilancookite was discovered in pegmatite of the Lavra Ponte do Piauí complex, Jequitinhonha, Minas Gerais, Brazil.[1][3]
Relation to other minerals
Wilancookite is related to pahasapaite,[1] a lithium-bearing beryllium phosphate mineral.[4]
References
- ↑ 1.0 1.1 1.2 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
- ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.
- ↑ "Wilancookite: Wilancookite mineral information and data". http://www.mindat.org/min-46739.html. Retrieved 2016-03-13.
- ↑ "Pahasapaite: Pahasapaite mineral information and data". http://www.mindat.org/min-3062.html. Retrieved 2016-03-13.
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