Fianelite
A valid IMA mineral species
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About Fianelite
Formula:
Mn2+2((V,As)2O7) · 2H2O
Colour:
Red-orange
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
3.21
Crystal System:
Monoclinic
Name:
Named after its locality.
Unique Identifiers
Mindat ID:
6946
Long-form identifier:
mindat:1:1:6946:1
Similar Names
| Vanalite | A valid IMA mineral species | NaAl9V12O42(OH)4 · 33H2O |
IMA Classification of Fianelite
Approved
IMA Formula:
Mn2+2V5+2O7·2H2O
Approval year:
1995
Classification of Fianelite
8.FC.05
8 : PHOSPHATES, ARSENATES, VANADATES
F : Polyphosphates, Polyarsenates, [4]-Polyvanadates
C : Polyphosphates, etc., with H2O only
8 : PHOSPHATES, ARSENATES, VANADATES
F : Polyphosphates, Polyarsenates, [4]-Polyvanadates
C : Polyphosphates, etc., with H2O only
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Fnl | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Fnl | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Fianelite
Vitreous
Transparency:
Transparent
Colour:
Red-orange
Streak:
Orange
Hardness:
3 on Mohs scale
Hardness:
VHN15=84 - 89 kg/mm2 - Vickers
Cleavage:
Distinct/Good
Parallel {001}(?) and {100}(?), good.
Parallel {001}(?) and {100}(?), good.
Density:
3.21(1) g/cm3 (Measured) 3.217(2) g/cm3 (Calculated)
Optical Data of Fianelite
Type:
Biaxial
RI values:
nα = 1.82 nβ = 1.82
2V:
Measured: 5° to 10°
Surface Relief:
Unknown
Dispersion:
small
Pleochroism:
Strong
Comments:
yellow to red on {010} (?).
Chemistry of Fianelite
Mindat Formula:
Mn2+2((V,As)2O7) · 2H2O
Element Weights:
Crystallography of Fianelite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 7.809(2) Å, b = 14.554(4) Å, c = 6.705(4) Å
β = 93.27(3)°
β = 93.27(3)°
Ratio:
a:b:c = 0.537 : 1 : 0.461
Unit Cell V:
760.80 ų (Calculated from Unit Cell)
Z:
4
Comment:
Space Group: P21/n.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0001837 | Fianelite | Brugger J, Berlepsch P (1996) Description and crystal structure of fianelite, Mn2V(V,As)O7.2H2O, a new mineral from Fianel, Val Ferrera, Graubunden, Switzerland American Mineralogist 81 1270-1276 |  | 1996 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.039 Å | (100) |
| 5.32 Å | (80) |
| 2.721 Å | (60) |
| 1.593 Å | (60) |
| 3.436 Å | (50) |
| 3.259 Å | (50) |
| 2.573 Å | (50) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-? alteration and/or metamorphism | |
| 32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits | |
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47e : [Vanadates, chromates, manganates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Fianelite
Place of Conservation of Type Material:
Natural History Museum, Basel, Switzerland
Geological Setting of Type Material:
veinlets in metamorphosed Fe–Mn ores
Associated Minerals at Type Locality:
Synonyms of Fianelite
Other Language Names for Fianelite
Common Associates
Associations Based on Photo Data:
| 3 photos of Fianelite associated with Ansermetite | Mn2+(V2O6) · 4H2O |
Related Minerals - Strunz-mindat Grouping
| 8.FC. | Donowensite | Ca(H2O)3Fe3+2(V2O7)2 |
| 8.FC.X | Hylbrownite | Na3Mg(P3O10) · 12H2O |
| 8.FC.05 | Rüdlingerite | Mn2+2V5+As5+O7 · 2H2O |
| 8.FC.10 | Canaphite | Na2Ca(P2O7) · 4H2O |
| 8.FC.15 | Pintadoite | Ca2(V2O7) · 9H2O |
| 8.FC.20 | 'Arnhemite' | (K,Na)4Mg2(P2O7)2 · 5H2O |
| 8.FC.25 | Wooldridgeite | Na2CaCu2+2(P2O7)2 · 10H2O |
| 8.FC.30 | Kanonerovite | Na3Mn2+(P3O10) · 12H2O |
| 8.FC.35 | Mesaite | CaMn2+5(V2O7)3 · 12H2O |
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.
Internet Links for Fianelite
mindat.org URL:
https://www.mindat.org/min-6946.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Fianelite
Localities for Fianelite
Showing 3 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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 | |
| Cámara et al. (2017) |
Japan | |
| Yamada et al (2000) |
Switzerland (TL) | |
| Brugger et al. (1996) |
Quick NavTopAbout FianeliteUnique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Fianel, Ausserferrera, Ferrera, Viamala Region, Grisons, Switzerland