Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery


This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About MetamuniriteHide

Specific Gravity:
Crystal System:
Named for its probable relationship to munirite.
May from by dehydration of munirite.

Classification of MetamuniriteHide

First Published:

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
D : Inovanadates

1 : Normal Anhydrous Vanadium Oxysalts

21 : Vanadates (and vanadates with arsenate or phosphate)
1 : Vanadates of the alkalis and Cu

Physical Properties of MetamuniriteHide

{101} and {001}
2.877 g/cm3 (Measured)    2.926 g/cm3 (Calculated)
Measured is synthetic material

Optical Data of MetamuniriteHide

Biaxial (+)
RI values:
nα = 1.780(2) nβ = 1.800(2) nγ = 1.850
Measured: 30° to 40°
Note that the calculated and illustrated birefringence is a minimum, based on nγ = 1.85; because nγ is reportedly >> 1.85, the actual observed birefringence will be higher.
Max Birefringence:
δ = 0.070
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
r > v distinct
Optical Extinction:
X = c; Y = a; Z = b; positive elongation

Chemical Properties of MetamuniriteHide

IMA Formula:

Crystallography of MetamuniriteHide

Crystal System:
Cell Parameters:
a = 14.13 Å, b = 3.64 Å, c = 5.35 Å
a:b:c = 3.882 : 1 : 1.47
Unit Cell V:
275.17 ų (Calculated from Unit Cell)
Needle-like crystals, which sometimes are broadened into narrow laths. Dominant crystal habit is {101}, with no clearly developed terminal faces.

Type Occurrence of MetamuniriteHide

General Appearance of Type Material:
Clusters of radiating colourless needles up to 0.2 mm in length in cavities in sandstone.
Place of Conservation of Type Material:
Smithsonian Institution, Washington, D.C., USA.
Evans, H.T. (1991) Metamunirite, a new anhydrous sodium metavanadate from San Miguel County, Colorado. Mineralogical Magazine: 55: 509-513.

Synonyms of MetamuniriteHide

Other Language Names for MetamuniriteHide

Simplified Chinese:钒钠矿

Common AssociatesHide

Associated Minerals Based on Photo Data:
Zippeite1 photo of Metamunirite associated with Zippeite on mindat.org.
Schröckingerite1 photo of Metamunirite associated with Schröckingerite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.HD.05RossiteCa(VO3)2•4H2OTric. 1 : P1
4.HD.10MetarossiteCa(V2O6) · 2H2OTric. 1 : P1
4.HD.15MuniriteNaVO3 · 1.9H2OMon.
4.HD.25DickthomsseniteMg(V2O6) · 7H2OMon. 2/m : B2/b
4.HD.30AnsermetiteMn2+(V2O6) · 4H2OMon. 2/m

Related Minerals - Dana Grouping (8th Ed.)Hide · 1.9H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.1.2MuniriteNaVO3 · 1.9H2OMon.
21.1.3Barnesite(Na,Ca)V6O16 · 3H2OMon. 2/m : P2/m
21.1.4Bannermanite(Na,K)0.7V4+0.7V5+5.3O15Mon. 2/m : B2/m
21.1.5HowardevansiteNaCuFe2(VO4)3Tric. 1 : P1
21.1.6HuemuliteNa4Mg(V10O28) · 24H2OTric.
21.1.7Blossiteα-Cu2(V2O7)Orth. mm2 : Fdd2
21.1.11FingeriteCu11(VO4)6O2Tric. 1 : P1
21.1.12VolborthiteCu3(V2O7)(OH)2 · 2H2OMon. 2/m : B2/m
21.1.13TangeiteCaCu(VO4)(OH)Orth. 2 2 2 : P21 21 21
21.1.14VésigniéiteBaCu3(VO4)2(OH)2Mon. 2/m : B2/m

Other InformationHide

Readily soluble in water
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for MetamuniriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kato, K., Takayama, E. (1984) Das entwässerungsverhalten des natriummetavanadatdihydrats und die kristallstruktur des β-natriummetavanadats. Acta Crystallographica: B40: 102-105.
Evans, H.T. (1991) Metamunirite, a new anhydrous sodium metavanadate from San Miguel County, Colorado. Mineralogical Magazine: 55: 509-513.
Jambor, J.L., Puziewicz, J. (1992) New mineral names. American Mineralogist: 77: 1116-1121.

Internet Links for MetamuniriteHide

Localities for MetamuniriteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Zhejiang
    • Hangzhou
      • Jiande Co.
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion District slag localities
          • Agios Konstantinos [St Constantine] (Kamariza)
Koshlyakova, N.N., Zubkova, N.V., Pekov, I.V., Giester, G., Pushcharovsky, D.Yu., Chukanov, N.V., Voudouris, P., Magganas, A., Katerinopoulos, A. (2016): Crystal chemistry of a Ni-Mg-analogue of lyonsite from slags of Lavrion, Greece. Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geochemistry 193, 113-120.
  • Catalonia
    • Lleida (Lérida)
      • El Pallars Jussà
        • La Vall Fosca
          • La Torre de Cabdella (La Torre de Capdella)
            • Castell-estaó
Joan Abella i Creus and Joan Viñals i Olià (2012) NUEVOS MINERALES DE LA “MINA EUREKA”: METAMUNIRITA, SCHRÖCKINGERITA, BOLTWOODITA Y GORDAITA, CASTELL-ESTAÓ, LA TORRE DE CABDELLA, LLEIDA, ESPAÑA. - http://mineralsabella.blogspot.com.es/2012/06/nuevos-minerales-de-la-mina-eureka.html
  • California
    • Madera Co.
      • Agnew Meadows
        • Olaine Lake
Gunnar Färber
  • Colorado
    • Montrose Co.
      • Bull Canyon District
Anthony R. Kampf, John M. Hughes, Joe Marty, Barbara P. Nash, Yu-Sheng Chen, and Ian M. Steele (2014) Bluestreakite, K4Mg2(V4+2V5+8O28) ·14H2O, a new mixed-valence decavanadate mineral from the Bluestreak Mine, Montrose County, Colorado: crystal structure and descriptive mineralogy. Can Mineral 52:1007-1018
    • San Miguel Co.
      • Gypsum Valley District
Patrick Haynes communication (2004)
      • Slick Rock District
Mineralogical Magazine(1991) 55, 509-513; "Minerals of Colorado, updated & revised", p. 320, by Eckel, Edwin B., 1997
Mineralogical Magazine:55:509-513.
Michael Shannon collection
  • Utah
    • Garfield Co.
      • Henry Mts
        • Trachyte District
Gunnar Färber
    • Grand Co.
      • Thompsons District (S. E. Thomsons)
        • D-Day Mine group
Collected by Michael Cline, and in the collection of Alex Earl
Collection of Chris Clemens
        • The Poison Strip
Collected and EDS analyzed by Joy Desor.
    • San Juan Co.
      • Big Indian District (Big Indian Wash - Lisbon Valley Area)
Patrick Haynes communication (2004)
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: March 18, 2019 15:51:57 Page generated: March 13, 2019 14:27:41
Go to top of page