Lepageite
A valid IMA mineral species
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Formula:
Mn2+3(Fe3+7Fe2+4)O3[Sb3+5As3+8O34]
Colour:
Brownish-black
Lustre:
Metallic
Specific Gravity:
5.192 (Calculated)
Crystal System:
Triclinic
Name:
Named in honor of Yvon Le Page (b. 7 October 1943), a crystallographer at the National Research Council of Canada, Ottawa, Canada. He developed the MISSYM software that played a major role in the correct solution of complex mineral structures (including lepageite). He also solved the structures of many minerals and was involved in the description of several new minerals.
New structure type.
Unique Identifiers
Mindat ID:
53047
Long-form identifier:
mindat:1:1:53047:3
GUID
(UUID V4):
(UUID V4):
d4785b68-ff81-4efc-9c82-890e39c3efcf
IMA Classification of Lepageite
Approved
Approval year:
2018
First published:
2019
Classification of Lepageite
4.JB.85
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
B : Arsenites, antimonites, bismuthites; with additional anions, without H2O
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
B : Arsenites, antimonites, bismuthites; with additional anions, without H2O
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Lep | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Lepageite
Metallic
Transparency:
Opaque
Colour:
Brownish-black
Cleavage:
None Observed
Parting:
None observed
Fracture:
None observed
Density:
5.192 g/cm3 (Calculated)
Chemistry of Lepageite
Mindat Formula:
Mn2+3(Fe3+7Fe2+4)O3[Sb3+5As3+8O34]
Crystallography of Lepageite
Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 10.607(3) Å, b = 10.442(3) Å, c = 15.260(5) Å
α = 89.58(1)°, β = 104.479(8)°, γ = 89.706(9)°
α = 89.58(1)°, β = 104.479(8)°, γ = 89.706(9)°
Ratio:
a:b:c = 1.016 : 1 : 1.461
Unit Cell V:
1,636.40 ų (Calculated from Unit Cell)
Twinning:
Twinning observed
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.898 Å | (85) |
| 2.854 Å | (92) |
| 2.846 Å | (88) |
| 2.831 Å | (100) |
| 2.487 Å | (34) |
| 2.474 Å | (34) |
| 2.463 Å | (34) |
| 1.728 Å | (24) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47e : [Vanadates, chromates, manganates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] | |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 57 : Other minerals formed by human processes |
Type Occurrence of Lepageite
General Appearance of Type Material:
Minute inclusions, generally ~5 μm (max 30 μm), in (Mn,Be,Na,Cs)-bearing cordierite or close to it .
Place of Conservation of Type Material:
Type material is deposited in the collections of the Mineralogical Museum, University of Wrocław, Cybulskiego 30, 50-205 Wrocław, Poland, catalogue number MMWr IV7926.
Reference:
Pieczka, A., Cooper, M.A., Hawthorne, F.C. (2019) Lepageite, Mn2+3(Fe3+7Fe2+4)O3[Sb3+5As3+8O34], a new arsenite-antimonite mineral from the Szklary pegmatite, Lower Silesia, Poland. American Mineralogist: 104: 1043-1050.
Synonyms of Lepageite
Related Minerals - Strunz-mindat Grouping
| 4.JB. | Cuyaite | Ca2Mn3+As3+14O24Cl |
| 4.JB. | Brattforsite | Mn19(AsO 3)12Cl2 |
| 4.JB.05 | Fetiasite | (Fe3+,Fe2+,Ti)3(As2O5)O2 |
| 4.JB.10 | Manganarsite | Mn3(As2O4)(OH)4 |
| 4.JB.15 | Magnussonite | Mn2+10(As3+O3)6(OH,Cl)2 |
| 4.JB.15 | UM1984-09-AsO:ClHMn | Mn10As6O18(OH)Cl |
| 4.JB.20 | Armangite | Mn2+26(AsO3)14(HAsO3)4(CO3) |
| 4.JB.25 | Nanlingite | Na(Ca5Li)Mg12(AsO3)2[Fe(AsO3)6]F14 |
| 4.JB.30 | Asbecasite | Ca3(Ti,Sn4+)Be2(AsO3)6(SiO4)2 |
| 4.JB.35 | Stenhuggarite | CaFeSb(AsO3)2O |
| 4.JB.40 | Trigonite | Pb3Mn2+(AsO3)2(HAsO3) |
| 4.JB.45 | Finnemanite | Pb5(AsO3)3Cl |
| 4.JB.50 | Gebhardite | Pb8(As2O5)2OCl6 |
| 4.JB.55 | Derbylite | Fe3+4Ti3Sb3+O13(OH) |
| 4.JB.55 | Tomichite | (V,Fe)4Ti3AsO13(OH) |
| 4.JB.55 | Graeserite | Fe3+4Ti3As3+O13(OH) |
| 4.JB.60 | Hemloite | (Ti,V3+,Fe3+,Al)12(As3+,Sb3+)2O23(OH) |
| 4.JB.65 | Freedite | Cu+Pb8(AsO3)2O3Cl5 |
| 4.JB.70 | Georgiadesite | Pb4(As3+O3)Cl4(OH) |
| 4.JB.75 | Ekatite | (Fe3+,Fe2+,Zn)12(AsO3)6(AsO3,HSiO4)2(OH)6 |
| 4.JB.75 | Szklaryite | ◻Al6BAs3+3O15 |
| 4.JB.90 | Bianchiniite | Ba2(TiV)(As2O5)2OF |
Fluorescence of Lepageite
None observed
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 Lepageite
mindat.org URL:
https://www.mindat.org/min-53047.html
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References for Lepageite
Localities for Lepageite
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.
Poland (TL) | |
| Mineralogical Magazine: 82: xxx–xxx. +3 other references |
