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Ansermetite

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About AnsermetiteHide

00775240015171907125877.jpg
Stefan Ansermet
Formula:
Mn2+(V2O6) · 4H2O
Colour:
carmine red to wine red
Lustre:
Adamantine
Hardness:
3
Specific Gravity:
2.5 - 2.55
Crystal System:
Monoclinic
Name:
Named in honor of Stefan Ansermet (b. 1964), mineralogist, associate researcher and photographer in the Geological State Museum of Lausanne, Switzerland. He is also a mineralogist for the Natural History Museum in Sion, Wallis, Switzerland, an occasional mining exploration prospector and author of the book 'Le Mont-Chemin – Mines et Minéraux du Valais'.
This page provides mineralogical data about Ansermetite.


Classification of AnsermetiteHide

Approved
Approval Year:
2002
4.HD.30

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

Physical Properties of AnsermetiteHide

Adamantine
Transparency:
Transparent
Colour:
carmine red to wine red
Streak:
orange
Hardness:
Tenacity:
Brittle
Cleavage:
Perfect
on {110}
Density:
2.5 - 2.55 g/cm3 (Measured)    

Chemical Properties of AnsermetiteHide

Formula:
Mn2+(V2O6) · 4H2O
IMA Formula:
Mn2+V5+2O6 · 4H2O

Crystallography of AnsermetiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 13.17 Å, b = 10.13 Å, c = 6.983 Å
β = 111.57°
Ratio:
a:b:c = 1.3 : 1 : 0.689
Unit Cell V:
866.37 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.82 Å(100)
4.51 Å(30)
3.91 Å(30)
3.03 Å(70)

Type Occurrence of AnsermetiteHide

General Appearance of Type Material:
scaly crusts to 0.5 mm thickness, rarely minute wedge-shaped tabular crystals to 0.1 mm
Geological Setting of Type Material:
late-stage hydrothermal mineralizations in fissures of massive manganese ores
Associated Minerals at Type Locality:

Synonyms of AnsermetiteHide

Other Language Names for AnsermetiteHide

German:Ansermetit
Simplified Chinese:水钒锰石
Traditional Chinese:水釩錳石

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Ansermetite associated with FianeliteMn2+2((V,As)2O7) · 2H2O
2 photos of Ansermetite associated with Ranciéite(Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O
1 photo of Ansermetite associated with PascoiteCa3(V10O28) · 17H2O
1 photo of Ansermetite associated with RhodoniteMn2+SiO3

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.20MetamuniriteNaVO3Orth.
4.HD.25DickthomsseniteMg(V2O6) · 7H2OMon. 2/m : B2/b

Fluorescence of AnsermetiteHide

Other InformationHide

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 AnsermetiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Brugger, J., Berlepsch, P., Meisser, N., and Armbruster, T. (2003) Ansermetite, MnV2O6·4H2O, a new mineral species with V5+ in five-fold coordination from Val Ferrera, Eastern Swiss Alps. Canadian Mineralogist: 41: 1423-1431.

Internet Links for AnsermetiteHide

Localities for AnsermetiteHide

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.
Italy
 
  • Liguria
    • Genoa
      • Ne
SC-XRD 2012-02-28 M.E. Ciriotti - CrisDi - Turin University: CCD: 6.984(6), 10.127(11), 13.221(14), 111.55(10)
        • Reppia
          • Monte Copello
R. Bracco, C. Leporatti, U. Kolitsch and M. Ciuffardi (2006): Ansermetite: ancora una novità da Gambatesa. Micro 2006, no. 2, 29-32. (in Italian)
Japan
 
  • Saitama Prefecture
    • Hanno City
Yamada et al (2000) Koubutsu-Gakkai Kou’en-Youshi, 88
Switzerland (TL)
 
  • Grisons
    • Hinterrhein
      • Ferrera Valley
        • Ausserferrera
J. Brugger et al.: Can. Mineral. 41:1423-1431 (2003)
USA
 
  • California
    • Trinity Co.
      • Coastal Range
        • Mad River Rock
Tony Kampf (PXRD analysis)
  • Colorado
    • Mesa Co.
      • Gateway
Kampf, A.R., Nash, B.P., Marty, J., Hughes, J.M. (2017) Mesaite, CaMn2+5(V2O7)3·12H2O, a new vanadate mineral from the Packrat mine, near Gateway, Mesa County, Colorado, USA. Mineralogical Magazine: 81: 319–327.
    • San Miguel Co.
      • Slick Rock Mining District
Kampf, A. R., Plášil, J., Nash, B. P., & Marty, J. (2019). Ammoniomathesiusite, a new uranyl sulfate–vanadate mineral from the Burro mine, San Miguel County, Colorado, USA. Mineralogical Magazine, 83(1), 115-121.
  • Utah
    • Grand Co.
      • Thompsons Mining District
        • Yellow Cat Mesa
SEM-EDS and PXRD analyzed by Tony Kampf.; ; Kasatkin, A.V., Plášil, J., Marty, J., Belakovskiy, D.I., Lykova, I.S. (2014): Nestolaite, CaSeO3·H2O, a new mineral from the Little Eva mine, Grand County, Utah, USA. Mineralogical Magazine, 78, 497-505.; Kasatkin, A. V., Plasil, J., Pekov, I. V., Belakovskiy, D. I., Nestola, F., Cejka, J., ... & Thorne, B. (2015). Karpenkoite, Co3 (V2O7)(OH) 2· 2H2O, a cobalt analogue of martyite from the Little Eva mine, Grand County, Utah, USA. Journal of Geosciences, 60(4), 251-257.
Chuck Adan specimen. Visual identification.
    • San Juan Co.
      • La Sal Mountains
        • La Sal Mining District (Paradox Valley Mining District)
          • La Sal
Collected by and in the collection of Brent Thorne.
 
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