Peterandresenite is a very rare mineral,[4] the first known natural hexaniobate. Its chemical formula is Mn4Nb6O19•14H2O. Its structure contains a special type of octahedron: Lindqvist ion. Peterandresenite was found in a pegmatite of the Larvik complex in Norway.[3] It is somewhat similar to other unique niobium minerals, aspedamite and menezesite.[5][6]
Occurrence
Peterandresenite was discovered in AS Granit quarry, Tvedalen, Larvik, Vestfold, Norway.[3]
References
- ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ Mineralienatlas
- ^ a b c Friis, H., Larsen, A.O., Kampf, A.R., Evans, R.J., Selbekk, R.S., and Sánchez, A.A., 2014. Peterandresenite, Mn4Nb6O19·14H2O, a new mineral containing the Lindqvist ion from a syenite pegmatite of the Larvik Plutonic Complex, southern Norway. European Journal of Mineralogy 26, 567-576
- ^ a b "Peterandresenite: Peterandresenite mineral information and data". Mindat.org. Retrieved 2016-03-04.
- ^ "Aspedamite: Aspedamite mineral information and data". Mindat.org. Retrieved 2016-03-08.
- ^ "Menezesite: Menezesite mineral information and data". Mindat.org. Retrieved 2016-03-08.
