Ansermetite
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About Ansermetite
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 Ansermetite
Approved
Approval Year:
2002
4/G.07-48
4.HD.30
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
D : Inovanadates
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
D : Inovanadates
Physical Properties of Ansermetite
Adamantine
Transparency:
Transparent
Colour:
carmine red to wine red
Streak:
orange
Hardness:
3 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
on {110}
on {110}
Density:
2.5 - 2.55 g/cm3 (Measured)
Chemical Properties of Ansermetite
Formula:
Mn2+(V2O6) · 4H2O
IMA Formula:
Mn2+V5+2O6 · 4H2O
Elements listed:
Crystallography of Ansermetite
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°
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 Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.82 | (100) |
| 4.51 | (30) |
| 3.91 | (30) |
| 3.03 | (70) |
Type Occurrence of Ansermetite
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 Ansermetite
Other Language Names for Ansermetite
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Nickel-Strunz Grouping
| 4.HD.05 | Rossite | Ca(VO3)2•4H2O | Tric. 1 : P1 |
| 4.HD.10 | Metarossite | Ca(V2O6) · 2H2O | Tric. 1 : P1 |
| 4.HD.15 | Munirite | NaVO3 · 1.9H2O | Mon. |
| 4.HD.20 | Metamunirite | NaVO3 | Orth. |
| 4.HD.25 | Dickthomssenite | Mg(V2O6) · 7H2O | Mon. 2/m : B2/b |
Fluorescence of Ansermetite
none
Other Information
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 Ansermetite
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 Ansermetite
mindat.org URL:
https://www.mindat.org/min-26443.html
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External Links:
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Localities for Ansermetite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Italy | |
| SC-XRD 2012-02-28 M.E. Ciriotti - CrisDi - Turin University: CCD: 6.984(6), 10.127(11), 13.221(14), 111.55(10) |
| 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 | |
| Yamada et al (2000) Koubutsu-Gakkai Kou’en-Youshi, 88 |
Switzerland (TL) | |
| J. Brugger et al.: Can. Mineral. 41:1423-1431 (2003) |
USA | |
| Tony Kampf (PXRD analysis) |
| Kampf, A.R., Nash, B.P., Marty, J., Hughes, J.M. (2016): Mesaite, CaMn2+5(V2O7)3·12H2O, a new vanadate mineral from the Packrat mine, near Gateway, Mesa County, Colorado, USA. Mineralogical Magazine: 80: (in press) |
| 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. |
| Chuck Adan specimen. Visual identification. | |
| Collected by and in the collection of Brent Thorne. |
Fianel, Ausserferrera, Ferrera Valley, Hinterrhein Valley, Grischun, Switzerland