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Fianelite

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About FianeliteHide

Formula:
Mn2+2((V,As)2O7) · 2H2O
Lustre:
Vitreous
Hardness:
3
Crystal System:
Monoclinic
Name:
Named after its locality.
Loosely related to mesaite. The V analogue of rüdlingerite.


Classification of FianeliteHide

Approved
Approval Year:
1995
8.FC.05

8 : PHOSPHATES, ARSENATES, VANADATES
F : Polyphosphates, Polyarsenates, [4]-Polyvanadates
C : Polyphosphates, etc., with H2O only

Physical Properties of FianeliteHide

Vitreous
Hardness:

Optical Data of FianeliteHide

Type:
Biaxial
RI values:
nα = 1.820 nβ = 1.820
2V:
Measured: 5° to 10°
Max Birefringence:
δ = 1.820
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
small

Chemical Properties of FianeliteHide

Formula:
Mn2+2((V,As)2O7) · 2H2O
IMA Formula:
Mn2+2V2O7 · 2H2O

Crystallography of FianeliteHide

Crystal System:
Monoclinic

Type Occurrence of FianeliteHide

Synonyms of FianeliteHide

Other Language Names for FianeliteHide

German:Fianelit
Simplified Chinese:费水钒锰矿
Spanish:Fianelita
Traditional Chinese:費水釩錳礦

Common AssociatesHide

Associated Minerals Based on Photo Data:
Ansermetite3 photos of Fianelite associated with Ansermetite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.FC.10CanaphiteNa2Ca(P2O7) · 4H2OMon.
8.FC.15PintadoiteCa2(V2O7) · 9H2O
8.FC.20Arnhemite(K,Na)4Mg2(P2O7)2 · 5H2OHex.
8.FC.25WooldridgeiteNa2CaCu2+2(P2O7)2 · 10H2OOrth. mm2 : Fdd2
8.FC.30KanoneroviteNa3Mn2+(P3O10) · 12H2OMon. 2/m

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 FianeliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mineralogical Record: 28: 401-402.
Brugger, J. & Berlepsch, P. (1996): Description and crystal structure of fianelite, Mn2V(V,As)O7.2H2O, a new mineral from Fianel, Val Ferrera, Graubünden, Switzerland. American Mineralogist: 81: 1270-1276.

Internet Links for FianeliteHide

Localities for FianeliteHide

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
 
  • Piedmont
    • Cuneo Province
      • Maira Valley
        • Canosio
          • Vallone della Valletta
Cámara, F., Bittarello, E., Ciriotti, M.E., Nestola, F., Radica, F., Massimi, F., Balestra, C., Bracco, R. (2017a) As-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: III. Canosioite, Ba2Fe3+(AsO4)2(OH), description and crystal structure. Mineralogical Magazine, 81, 305–317.
Japan
 
  • Honshu Island
    • Kanto Region
      • Saitama Prefecture
        • Hannou
Yamada et al (2000) Koubutsu-Gakkai Kou'en-Youshi, 88.
Switzerland (TL)
 
  • Grischun (Grisons; Graubünden)
    • Hinterrhein Valley
      • Ferrera Valley
        • Ausserferrera
Am.Min.: 81:1270-1276.
Mineral and/or Locality  
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