• Manganoneptunite: Mineral information, data and localities.

    www.mindat.org/min-2564.html Manganoneptunite Zolotarev A A, Krivovichev S V, Yakovenchuk V N (2007) Refinement of the mangan-neptunite structure Zapiski Vserossijskogo Mineralogicheskogo Obshchestva 136 118-123 2007
  • Manganoneptunite: The mineral manganoneptunite information ...

    www.minerals.net/mineral/manganoneptunite.aspx Manganoneptunite is the manganese-dominant variant of Neptunite, having a greater portion of manganese over iron in a solid solution series.Although often considered a variety of Neptunite, the IMA recognizes Manganoneptunite as a distinct mineral species. Manganoneptunite is generally ligher in color than Neptunite, and can even be completely transparent in specimens where the iron content is ...
  • Manganoneptunite Mineral Data

    webmineral.com/data/Manganoneptunite.shtml Manganoneptunite Shkatulkalite Comments: Pearly white shkatulkalite with brown mangan-neptunite grains. Location: Shkatulka pegmatite, Umbozero mine, Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia.
  • Manganoneptunite Mineral Data - Mineralogy Database

    webmin.mindat.org/data/Manganoneptunite.shtml General Manganoneptunite Information : Chemical Formula: KNa2Li(Mn,Fe++)2Ti2Si8O24 : Composition: Molecular Weight = 906.78 gm Potassium 4.31 % K 5.19 % K 2 O: Sodium 5.07 % Na 6.84 % Na 2 O: Lithium 0.77 % Li 1.65 % Li 2 O: Titanium 10.56 % Ti 17.62 % TiO 2: Manganese 9.09 % Mn 11.73 % MnO: Iron 3.08 % Fe 3.96 % FeO ...
  • Manganoneptunite mineral information and data

    www.dakotamatrix.com/mineralpedia/7260/manganoneptunite Manganoneptunite is a rare mineral that occurs in only a few countries worldwide including in Russia, the United States, Canada, Malawi, Morocco and Namibia. It is found as a late-forming segregation mineral in nearly all rock types at its Russian localities in the Lovozero massif in Russia.
  • Manganoneptunite - Mindat.org

    www.mindat.org/gm/2564 The manganoneptunite is very lustrous but nearly black with only a few deep red highlights. The white platy xls are microcline. Manganoneptunite, Varennesite. Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada.
  • Manganoneptunite R130094 - Raman Spectroscopy

    rruff.info/chem=Ti/display=default/R130094 Name: Manganoneptunite RRUFF ID: R130094 Ideal Chemistry: KNa 2 LiMn 2+ 2 Ti 2 Si 8 O 24 Locality: Mount Kurnasurt, Lovozero Massif, Kola Peninsula, USSR Source: Michael Scott S100990 Owner: RRUFF Description: Deep red massive, good cleavage, associated with raite R060854, and orthoclase Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
  • Neptunite - Wikipedia

    en.wikipedia.org/wiki/Manganoneptunite Neptunite is a silicate mineral with the formula K Na 2 Li(Fe 2+, Mn 2+) 2 Ti 2 Si 8 O 24.With increasing manganese it forms a series with mangan-neptunite.Watatsumiite is the variety with vanadium replacing the titanium in the formula.. It was first described in 1893 for an occurrence in the Narssârssuk pegmatite of West Greenland. It is also found within natrolite veins in glaucophane ...
  • Manganoneptunite Mineral Specimen For Sale

    www.dakotamatrix.com/products/16759/manganoneptunite Manganoneptunite - Prismatic, deep red Manganoneptunite to 1mm. . This and many more mineral specimens are available for sale at Dakota Matrix Minerals.
  • Neptunite: The mineral neptunite information & picture

    www.minerals.net/mineral/neptunite.aspx Neptunite is a relatively recent mineral, having been first discovered only in the early 1900's. It is named after Neptunus, the Roman god of the sea, and its etymology is derived from its similarity to Aegrine, which was named after the Norse sea god.Neptunite forms a solid solution series with Manganoneptunite, which is the manganese-dominant variant of Neptunite, whereas Neptunite is the ...