Wilancookite Explained

Wilancookite
Category:	Phosphate
Imasymbol:	Wck^[1]
System:	Isometric
Class:	Tetartoidal (23) H-M symbol: (23)
Symmetry:	I23
Unit Cell:	a = 13.54 Å (approximated)

Wilancookite is a very rare and complex beryllium phosphate with the chemical formula . Wilancookite was discovered in pegmatite of the Lavra Ponte do Piauí complex, Jequitinhonha, Minas Gerais, Brazil.^{[2] [3]}

Relation to other minerals

Wilancookite is related to pahasapaite,^[2] a lithium-bearing beryllium phosphate mineral.^[4]

Notes and References

1. Warr. L.N.. 2021. IMA–CNMNC approved mineral symbols. Mineralogical Magazine. 85. 3. 291–320. 10.1180/mgm.2021.43. 2021MinM...85..291W. 235729616. free.
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
3. Web site: Wilancookite: Wilancookite mineral information and data . Mindat.org . 2016-03-13.
4. Web site: Pahasapaite: Pahasapaite mineral information and data . Mindat.org . 2016-03-13.