Mariakrite
A valid IMA mineral species
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Formula:
[Ca4Al2(OH)12(H2O)4][Fe2S4]
Crystal System:
Triclinic
Member of:
Bears a rather unique thioferrate unit.
Unique Identifiers
Mindat ID:
55766
Long-form identifier:
mindat:1:1:55766:5
GUID
(UUID V4):
(UUID V4):
d67fbe43-4d89-41e6-9fd3-adc33117638a
IMA Classification of Mariakrite
Approved, Pending publication
Classification of Mariakrite
4.FL.
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
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 |
---|---|---|
Mari | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Chemistry of Mariakrite
Mindat Formula:
[Ca4Al2(OH)12(H2O)4][Fe2S4]
Crystallography of Mariakrite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.7107(2) Å, b = 9.9952(4) Å, c = 10.9095(4) Å
α = 98.678(3)°, β = 90.100(3)°, γ = 90.019(3)°
α = 98.678(3)°, β = 90.100(3)°, γ = 90.019(3)°
Ratio:
a:b:c = 0.571 : 1 : 1.091
Unit Cell V:
615.58 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
10.83 Å | (100) |
9.90 Å | (39) |
5.42 Å | (75) |
3.96 Å | (22) |
3.523 Å | (19) |
2.856 Å | (37) |
2.400 Å | (23) |
2.241 Å | (20) |
Type Occurrence of Mariakrite
Place of Conservation of Type Material:
collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18–2, Moscow 119071, Russia, registration number 5694/1
Synonyms of Mariakrite
Relationship of Mariakrite to other Species
Member of:
Other Members of this group:
Hydrocalumite | Ca4Al2(OH)12(Cl,CO3,OH)2 · 4H2O | Mon. 2 : P21 |
Kuzelite | Ca4Al2(OH)12[SO4] · 6H2O | Trig. |
Related Minerals - Strunz-mindat Grouping
4.FL. | Trébeurdenite | Fe2+2Fe3+4O2(OH)10CO3 · 3H2O |
4.FL. | Carbocalumite | Ca4Al2(OH)12(CO3) · 6H2O |
4.FL.05 | Woodallite | Mg6Cr2(OH)16Cl2 · 4H2O |
4.FL.05 | Iowaite | Mg6Fe3+2(OH)16Cl2 · 4H2O |
4.FL.05 | Jamborite | Ni2+1-xCo3+x(OH)2-x(SO4)x · nH2O |
4.FL.05 | Meixnerite | Mg6Al2(OH)16(OH)2 · 4H2O |
4.FL.05 | Muskoxite | Mg7Fe4O13 · 10H2O |
4.FL.05 | Fougèrite | Fe2+4Fe3+2(OH)12[CO3] · 3H2O |
4.FL.05 | Mössbauerite | Fe3+6O4(OH)8[CO3] · 3H2O |
4.FL.05 | Dritsite | Li2Al4(OH)12Cl2 · 3H2O |
4.FL.10 | Hydrocalumite | Ca4Al2(OH)12(Cl,CO3,OH)2 · 4H2O |
4.FL.15 | Kuzelite | Ca4Al2(OH)12[SO4] · 6H2O |
4.FL.20 | Aurorite | Mn2+Mn4+3O7 · 3H2O |
4.FL.20 | Chalcophanite | ZnMn4+3O7 · 3H2O |
4.FL.20 | Ernienickelite | NiMn3O7 · 3H2O |
4.FL.20 | Jianshuiite | (Mg,Mn,Ca)Mn3O7 · 3H2O |
4.FL.25 | Woodruffite | Zn2+x/2(Mn4+1-xMn3+x)O2 · yH2O |
4.FL.30 | Asbolane | (Ni,Co)2-xMn4+(O,OH)4 · nH2O |
4.FL.30 va | Lampadite | Cu, Mn, O, H |
4.FL.35 | Buserite | Na4Mn14O27 · 21H2O |
4.FL.40 | Ranciéite | (Ca,Mn2+)0.2(Mn4+,Mn3+)O2 · 0.6H2O |
4.FL.40 | Takanelite | (Mn,Ca)Mn4O9 · H2O |
4.FL.45 | Birnessite | (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O |
4.FL.55 | Cianciulliite | Mn(Mg,Mn)2Zn2(OH)10 · 2-4H2O |
4.FL.60 | Jensenite | Cu3[TeO6] · 2H2O |
4.FL.65 | Leisingite | Cu2MgTe6+O6 · 6H2O |
4.FL.70 | Akdalaite | Al10O14(OH)2 |
4.FL.75 | Cafetite | CaTi2O5 · H2O |
4.FL.80 | Mourite | UMo5O12(OH)10 |
4.FL.85 | Deloryite | Cu4(UO2)(MoO4)2(OH)6 |
4.FL.90 | Lagalyite | Ca2xMn1-xO2 · 1.5-2H2O |
4.FL.95 | Tunnerite (of Cornu) |
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 Mariakrite
mindat.org URL:
https://www.mindat.org/min-55766.html
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References for Mariakrite
Reference List:
Localities for Mariakrite
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).
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 (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Israel (TL) | |
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