Amoraite
A valid IMA mineral species - pending publication
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Formula:
Ca12Al6(OH)36(CO3)2(SO3) · 15H2O
Crystal System:
Triclinic
Member of:
The first supergroup member with species-defining sulfite group. As mariakrite (another member of the hydrotalcite supergroup) it is distinguished by strongly reduced symmetry.
Unique Identifiers
Mindat ID:
470923
Long-form identifier:
mindat:1:1:470923:3
Similar Names
| Ambrite | A variety of 'Retinite' |
| Ambroite | A synonym of 'Amber' |
IMA Classification of Amoraite
Approved, Pending publication
IMA Formula:
Ca12Al6(OH)36(CO3)2(S4+O3)·15H2O
Classification of Amoraite
5.DA.
5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
A : With medium-sized cations
5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
A : With medium-sized cations
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 for Standard |
|---|---|---|
| Amor | 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 Amoraite
Mindat Formula:
Ca12Al6(OH)36(CO3)2(SO3) · 15H2O
Element Weights:
Crystallography of Amoraite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 15.2630(2) Å, b = 16.0664(2) Å, c = 23.0448(3) Å
α = 100.259(1)°, β = 100.936(1)°, γ = 94.299(1)°
α = 100.259(1)°, β = 100.936(1)°, γ = 94.299(1)°
Ratio:
a:b:c = 0.95 : 1 : 1.434
Unit Cell V:
5,425.05 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.89 Å | (100) |
| 3.933 Å | (41) |
| 3.815 Å | (39) |
| 2.882 Å | (29) |
| 2.526 Å | (26) |
| 2.441 Å | (25) |
| 2.323 Å | (19) |
| 2.130 Å | (14) |
Type Occurrence of Amoraite
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5877/1
Other Language Names for Amoraite
Relationship of Amoraite to other Species
Member of:
Other Members of Hydrotalcite Supergroup:
| Akopovaite | Al4Li2(OH)12(CO3)(H2O)3 | Mon. 2/m : B2/m |
| Brugnatellite | Mg6Fe3+(CO3)(OH)13 · 4H2O | Hex. |
| Carbocalumite | Ca4Al2(OH)12(CO3) · 6H2O | Trig. 3m(32/m) : R3c |
| Coalingite | Mg10Fe3+2(OH)24[CO3] · 2H2O | Trig. 3m(32/m) : R3m |
| Cualstibite Group | M2R(OH)6[Sb5+(OH)6], where M = Zn, Ni, Cu and R = Al or Fe3+ | |
| Dritsite | Li2Al4(OH)12Cl2 · 3H2O | Hex. 6/mmm(6/m2/m2/m) : P63/mcm |
| Fougèrite Group | ||
| Glaucocerinite Group | ||
| Hydrocalumite Group | ||
| Hydrotalcite Group | M6R3+2(OH)16Z · 4H2O, where M=Mg, Fe, Ni, R3+ = Al, Cr, Co or Fe, and Z=CO3, Cl | |
| Marioantofilliite | [Cu4Al2(OH)12](CO3) · 3H2O | Mon. 2/m : B2/m |
| Muskoxite | Mg7Fe4O13 · 10H2O | Trig. 3m(32/m) |
| Poellmannite | Ca6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O | Trig. 3 : R3 |
| Quintinite Group | ||
| Rotemite | Ca4Cr2(OH)12Cl2 · 4H2O | Trig. 3m(32/m) : R3c |
| 'UM1987-05-OH:AlCMg' | Mg4Al2(OH)12(CO3,SO4) · 3H2O | |
| Wermlandite Group | M7R3+2(OH)18[Ca(H2O)6][SO4]2 · 6H2O, where = Mg, Fe, Zn and R= Al or Fe | |
| Woodwardite Group | May be considered a subgroup of the Hydrotalcite Group. |
Related Minerals - Strunz-mindat Grouping
| 5.DA. | Alexkhomyakovite | K6(Ca2Na)(CO3)5Cl · 6H2O |
| 5.DA.05 | Dypingite | Mg5(CO3)4(OH)2 · 5H2O |
| 5.DA.05 | 'UM1986-10-CO:ClHMgMnZn (also called Mineral F, Dunn, 1995)' | Mg5(Zn,Mn)3(CO3)2(OH,Cl)12 · H2O |
| 5.DA.05 | 'UM1987-01-CO:HMgS' | Mg4(CO3)2(OH)4 · 6H2O ? |
| 5.DA.05 | Giorgiosite | Mg5(CO3)4(OH)2 · 5-6H2O |
| 5.DA.05 | Hydromagnesite | Mg5(CO3)4(OH)2 · 4H2O |
| 5.DA.05 | Widgiemoolthalite | Ni5(CO3)4(OH)2 · 5H2O |
| 5.DA.10 | Artinite | Mg2(CO3)(OH)2 · 3H2O |
| 5.DA.10 | Chlorartinite | Mg2(CO3)(OH)Cl · 2H2O |
| 5.DA.10 | Indigirite | Mg2Al2(CO3)4(OH)2 · 15H2O |
| 5.DA.15 | Zaratite | Ni3(CO3)(OH)4 · 4H2O ? |
| 5.DA.15 | Otwayite | Ni2(CO3)(OH)2 · H2O |
| 5.DA.20 | Kambaldaite | NaNi4(CO3)3(OH)3 · 3H2O |
| 5.DA.25 | Callaghanite | Cu2Mg2(CO3)(OH)6 · 2H2O |
| 5.DA.30 | Claraite | (Cu,Zn)15(CO3)4(AsO4)2(SO4)(OH)14 · 7H2O |
| 5.DA.35 | Hydroscarbroite | Al14(CO3)3(OH)36 · nH2O |
| 5.DA.35 | Scarbroite | Al5(CO3)(OH)13 · 5H2O |
| 5.DA.40 | Karchevskyite | Mg18Al9(OH)54Sr2(CO3)9(H2O)6(H3O)5 |
| 5.DA.40 | 'UM1987-05-OH:AlCMg' | Mg4Al2(OH)12(CO3,SO4) · 3H2O |
| 5.DA.40 | Quintinite | Mg4Al2(OH)12(CO3) · 3H2O |
| 5.DA.40 | Charmarite | Mn2+4Al2(OH)12[CO3] · 3H2O |
| 5.DA.40 | Caresite | Fe2+4Al2(OH)12[CO3] · 3H2O |
| 5.DA.45 | 'Hydrotalcite-2H' | Mg6Al2(CO3)(OH)16 · 4H2O |
| 5.DA.45 | 'Stichtite-2H' | Mg6(Cr,Al)2(CO3)(OH)16 · 4H2O |
| 5.DA.45 | Brugnatellite | Mg6Fe3+(CO3)(OH)13 · 4H2O |
| 5.DA.45 | Zaccagnaite | Zn4Al2(OH)12[CO3] · 3H2O |
| 5.DA.45 | 'Pyroaurite-2H' | Mg6Fe3+2(OH)16(CO3) · 4H2O |
| 5.DA.45 | Liudongshengite | Zn4Cr2(OH)12(CO3) · 3H2O |
| 5.DA.45 | Chlormagaluminite | Mg4Al2(OH)12Cl2 · 3H2O |
| 5.DA.50 | Pyroaurite | Mg6Fe3+2(OH)16[CO3] · 4H2O |
| 5.DA.50 | Takovite | Ni6Al2(OH)16[CO3] · 4H2O |
| 5.DA.50 | Reevesite | Ni6Fe3+2(OH)16(CO3) · 4H2O |
| 5.DA.50 | Kaznakhtite | Ni6Co3+2(CO3)(OH)16 · 4H2O |
| 5.DA.50 | Comblainite | Ni4Co2(OH)12[CO3] · 3H2O |
| 5.DA.50 | Marioantofilliite | [Cu4Al2(OH)12](CO3) · 3H2O |
| 5.DA.50 | Hydrotalcite | Mg6Al2(CO3)(OH)16 · 4H2O |
| 5.DA.50 | Stichtite | Mg6Cr3+2(OH)16[CO3] · 4H2O |
| 5.DA.50 | Desautelsite | Mg6Mn3+2(OH)16[CO3] · 4H2O |
| 5.DA.55 | Coalingite | Mg10Fe3+2(OH)24[CO3] · 2H2O |
| 5.DA.55 | Akopovaite | Al4Li2(OH)12(CO3)(H2O)3 |
| 5.DA.60 | Šlikite | Zn2Mg(CO3)2(OH)2 · 4H2O |
| 5.DA.65 | Marklite | Cu5(CO3)2(OH)6 · 6H2O |
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 Amoraite
mindat.org URL:
https://www.mindat.org/min-470923.html
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References for Amoraite
Localities for Amoraite
Showing 1 localities.
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.
Israel (TL) | |
| Bosi et al. (2023) |
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