Whiteite-(CaMnMg)
A valid IMA mineral species
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About Whiteite-(CaMnMg)
Formula:
{Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
Colour:
Yellow, light lavender, pink
Lustre:
Waxy
Hardness:
3½
Specific Gravity:
2.63
Crystal System:
Monoclinic
Member of:
Name:
Named for the chemical composition, in accordance with whiteite group nomenclature. The suffix indicates sequentially the dominant cation in the X, M1, and M2 structural positions. The root name is for John Sampson White, Jr. (30 September 1933, Monessen, Pennsylvania, USA -), associate curator of minerals, Smithsonian institution; founder, editor, and publisher (1970-1982) of the Mineralogical Record.
Unique Identifiers
Mindat ID:
4278
Long-form identifier:
mindat:1:1:4278:5
Similar Names
| Wadeite | A valid IMA mineral species - grandfathered | K2Zr(Si3O9) |
| Whiteit | A synonym of 'Whiteite' | |
| Whiteite | A synonym of Whiteite Subgroup | |
| Whiteite-(CaFeMg) | A valid IMA mineral species | {Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O |
| Whiteite-(CaMgMg) | A valid IMA mineral species | CaMg3Al2(PO4)4(OH)2 · 8H2O |
| Whiteite-(CaMnFe) | A valid IMA mineral species | CaMnFe2Al2(PO4)4(OH)2 · 8H2O |
| Whiteite-(CaMnMn) | A valid IMA mineral species | {Ca}{Mn2+}{Mn2}{Al2}(PO4)4(OH)2 · 8H2O |
| Whiteite-(MnFeMg) | A valid IMA mineral species | {(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O |
| Whiteite-(MnMnMg) | A valid IMA mineral species | MnMnMg2Al2(PO4)4(OH)2 · 8H2O |
| Whiteite-(MnMnMn) | A valid IMA mineral species | Mn2+Mn2+Mn22+Al2(PO4)4(OH)2 · 8H2O |
| Wittite | A valid IMA mineral species - grandfathered - questionable | Pb9Bi12(S,Se)27 |
Classification of Whiteite-(CaMnMg)
IMA Classification of Whiteite-(CaMnMg)
Approved
IMA Formula:
CaMn2+Mg2Al2(PO4)4(OH)2·8H2O
Approval year:
1986
First published:
1989
Type description reference:
8.DH.15
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4 < 1:1
42.11.3.3
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
19.12.61
19 : Phosphates
12 : Phosphates of Mn
19 : Phosphates
12 : Phosphates of Mn
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 |
|---|---|---|
| Wt-CaMnMg | 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 Whiteite-(CaMnMg)
Waxy
Transparency:
Transparent
Colour:
Yellow, light lavender, pink
Streak:
White
Hardness:
3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
On (001)
On (001)
Density:
2.63(2) g/cm3 (Measured) 2.64 g/cm3 (Calculated)
Optical Data of Whiteite-(CaMnMg)
Type:
Biaxial (+)
RI values:
nα = 1.58 nβ = 1.584 nγ = 1.591
2V:
Measured: 74° to 81°, Calculated: 76°
Max. Birefringence:
δ = 0.011
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Dispersion:
none
Pleochroism:
Weak
Comments:
X = mauve, Y = light mauve, Z = colorless
Chemistry of Whiteite-(CaMnMg)
Mindat Formula:
{Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O
Element Weights:
Crystallography of Whiteite-(CaMnMg)
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 14.842(9) Å, b = 6.976(1) Å, c = 10.109(4) Å
β = 112.59(5)°
β = 112.59(5)°
Ratio:
a:b:c = 2.128 : 1 : 1.449
Unit Cell V:
966.36 ų (Calculated from Unit Cell)
Z:
2
Comment:
Space group P2/a or Pa.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.31 Å | (100) |
| 2.790 Å | (80) |
| 4.85 Å | (50) |
| 3.51 Å | (50) |
| 2.953 Å | (50) |
| 3.256 Å | (40) |
| 2.867 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Whiteite-(CaMnMg)
General Appearance of Type Material:
Dull or etched, yellowish bipyramidal crystals or blebs up to 1.5x0.5x0.5 mm.
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, Canada, 49707, 49712.
National Museum of Natural History (Smithsonian), Washington, D.C., USA, 15085, 163775, R18801.
National Museum of Natural History (Smithsonian), Washington, D.C., USA, 15085, 163775, R18801.
Geological Setting of Type Material:
Complex granite pegmatite
Associated Minerals at Type Locality:
Synonyms of Whiteite-(CaMnMg)
Other Language Names for Whiteite-(CaMnMg)
Dutch:Whiteiet-(CaMnMg)
German:Whiteit-(CaMnMg)
Relationship of Whiteite-(CaMnMg) to other Species
Member of:
Other Members of Whiteite Subgroup:
| Rittmannite | {(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
| Whiteite-(CaFeMg) | {Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P21/b |
| Whiteite-(CaMgMg) | CaMg3Al2(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
| Whiteite-(CaMnFe) | CaMnFe2Al2(PO4)4(OH)2 · 8H2O | Mon. 2/m |
| Whiteite-(CaMnMn) | {Ca}{Mn2+}{Mn2}{Al2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
| Whiteite-(MnFeMg) | {(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O | Mon. 2/m : P21/b |
| Whiteite-(MnMnMg) | MnMnMg2Al2(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
| Whiteite-(MnMnMn) | Mn2+Mn2+Mn2+2Al2(PO4)4(OH)2 · 8H2O | Mon. 2/m : P2/b |
Common Associates
Associations Based on Photo Data:
| 8 photos of Whiteite-(CaMnMg) associated with Roscherite | Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O |
| 6 photos of Whiteite-(CaMnMg) associated with Englishite | K3Na2Ca10Al15(PO4)21(OH)7 · 26H2O |
| 5 photos of Whiteite-(CaMnMg) associated with Tiptopite | K2(Na,Ca)2Li3Be6(PO4)6(OH)2 · H2O |
| 5 photos of Whiteite-(CaMnMg) associated with Montgomeryite | Ca4MgAl4(PO4)6(OH)4 · 12H2O |
| 4 photos of Whiteite-(CaMnMg) associated with Siderite | FeCO3 |
| 3 photos of Whiteite-(CaMnMg) associated with Beryl | Be3Al2(Si6O18) |
| 2 photos of Whiteite-(CaMnMg) associated with Jahnsite-(CaMnFe) | {Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 2 photos of Whiteite-(CaMnMg) associated with Mitridatite | Ca2Fe3+3(PO4)3O2 · 3H2O |
| 2 photos of Whiteite-(CaMnMg) associated with Hurlbutite | CaBe2(PO4)2 |
| 1 photo of Whiteite-(CaMnMg) associated with Robertsite | Ca2Mn3+3(PO4)3O2 · 3H2O |
Related Minerals - Strunz-mindat Grouping
| 8.DH. | Thebaite-(NH4) | (NH4)3Al(C2O4)(PO3OH)2(H2O) |
| 8.DH. | Whiteite-(MnMnMn) | Mn2+Mn2+Mn2+2Al2(PO4)4(OH)2 · 8H2O |
| 8.DH. | Ammoniotinsleyite | (NH4)Al2(PO4)2(OH) · 2H2O |
| 8.DH. | Bergbauerite | (H2O)2Mn2(Fe2Ti)(PO4)4(OH)2(H2O)10 · 4H2O |
| 8.DH. | Dendoraite-(NH4) | (NH4)2NaAl(C2O4)(PO3OH)2(H2O)2 |
| 8.DH. | Rowleyite | [Na(NH4,K)9Cl4][V5+,4+2(P,As)O8]6 · n[H2O,Na,NH4,K,Cl] |
| 8.DH. | Hochleitnerite | Mn2Ti3(PO4)4O2(H2O)2 · 14H2O |
| 8.DH. | Whiteite-(CaMnFe) | CaMnFe2Al2(PO4)4(OH)2 · 8H2O |
| 8.DH.05 | Minyulite | KAl2(PO4)2F · 4H2O |
| 8.DH.10 | Leucophosphite | KFe3+2(PO4)2(OH) · 2H2O |
| 8.DH.10 | Tinsleyite | KAl2(PO4)2(OH) · 2H2O |
| 8.DH.10 | Spheniscidite | (NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O |
| 8.DH.15 | Jahnsite-(CaMnFe) | {Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Jahnsite-(NaMnMn) | {Na}{Mn2+}{(Mn2+,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Jahnsite-(CaMnMg) | {Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Jahnsite-(CaMnMn) | {Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Whiteite-(MnMnMg) | MnMnMg2Al2(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Jahnsite-(CaMnZn) | {Ca}{Mn2+}{Zn2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Jahnsite-(MnMnMg) | {Mn2+}{Mn2+}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Jahnsite-(MnMnFe) | {Mn2+}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | 'Jahnsite-(CaFeFe)' | {Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Rittmannite | {(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Keckite | CaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2O |
| 8.DH.15 | Jahnsite-(NaMnMg) | {(Na,Ca)}{(Mn2+,Fe3+)}{(Mg,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | 'Jahnsite-(CaMgMg)' | {Ca}{Mg}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Jahnsite-(MnMnZn) | {Mn2+}{Mn2+}{Zn2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Whiteite-(CaMgMg) | CaMg3Al2(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Whiteite-(CaFeMg) | {Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Whiteite-(MnFeMg) | {(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Jahnsite-(MnMnMn) | {Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | 'Kaluginite' | (Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2O |
| 8.DH.15 | Jahnsite-(CaFeMg) | {Ca}{Fe2+}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Whiteite-(CaMnMn) | {Ca}{Mn2+}{Mn2}{Al2}(PO4)4(OH)2 · 8H2O |
| 8.DH.15 | Jahnsite-(NaFeMg) | {Na}{Fe3+}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O |
| 8.DH.20 | Segelerite | Ca2 Mg2 Fe3+2(PO4)4(OH)2 · 8H2O |
| 8.DH.20 | Lun'okite | (Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2O |
| 8.DH.20 | Manganosegelerite | (Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2O |
| 8.DH.20 | Wilhelmvierlingite | CaMnFe3+(PO4)2(OH) · 2H2O |
| 8.DH.20 | Juonniite | CaMgSc(PO4)2(OH) · 4H2O |
| 8.DH.20 | Overite | CaMgAl(PO4)2(OH) · 4H2O |
| 8.DH.25 | Calcioferrite | Ca4MgFe3+4(PO4)6(OH)4 · 12H2O |
| 8.DH.25 | Zodacite | Ca4Mn2+Fe3+4(PO4)6(OH)4 · 12H2O |
| 8.DH.25 | Fanfaniite | Ca4Mn2+Al4(PO4)6(OH)4 · 12H2O |
| 8.DH.25 | Kingsmountite | Ca3Mn2+FeAl4(PO4)6(OH)4 · 12H2O |
| 8.DH.25 | Montgomeryite | Ca4MgAl4(PO4)6(OH)4 · 12H2O |
| 8.DH.30 | Pararobertsite | Ca2Mn3+3(PO4)3O2 · 3H2O |
| 8.DH.30 | Robertsite | Ca2Mn3+3(PO4)3O2 · 3H2O |
| 8.DH.30 | Arseniosiderite | Ca2Fe3+3(AsO4)3O2 · 3H2O |
| 8.DH.30 | Sailaufite | (Ca,Na,◻)2Mn3+3(AsO4)2(CO3)O2 · 3H2O |
| 8.DH.30 | Mitridatite | Ca2Fe3+3(PO4)3O2 · 3H2O |
| 8.DH.30 | Kolfanite | Ca2Fe3+3O2(AsO4)3 · 2H2O |
| 8.DH.35 | Mantienneite | KMg2Al2Ti(PO4)4(OH)3 · 15H2O |
| 8.DH.35 | Sperlingite | (H2O)K(Mn2+Fe3+)(Al2Ti)(PO4)4[O(OH)] [(H2O)9(OH)] · 4H2O |
| 8.DH.35 | Paulkerrite | K(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2O |
| 8.DH.35 | Hydroxylbenyacarite | (H2O)2Mn2(Ti2Fe)(PO4)4[O(OH)](H2O)10 · 4H2O |
| 8.DH.35 | Macraeite | K(H2O)Mn2(Fe2Ti)(PO4)4[O(OH)](H2O)10 · 4H2O |
| 8.DH.35 | Benyacarite | (H2O)2Mn2Ti2Fe3+(PO4)4(OF)(H2O)10 · 4H2O |
| 8.DH.35 | Fluormacraeite | [(H2O)K]Mn2(Fe2Ti)(PO4)4(OF)(H2O)10 · 4H2O |
| 8.DH.40 | Xanthoxenite | Ca4Fe3+2(PO4)4(OH)2 · 3H2O |
| 8.DH.45 | Mahnertite | NaCu3(AsO4)2Cl · 5H2O |
| 8.DH.50 | Andyrobertsite | KCdCu5(AsO4)4(H2AsO4) · 2H2O |
| 8.DH.50 | Calcioandyrobertsite | KCaCu5(AsO4)4(H2AsO4) · 2H2O |
| 8.DH.55 | Englishite | K3Na2Ca10Al15(PO4)21(OH)7 · 26H2O |
| 8.DH.60 | Bouazzerite | Bi6(Mg,Co)11Fe3+14(AsO4)18(OH)4O12 · 86H2O |
| 8.DH.65 | Galliskiite | Ca4Al2(PO4)2F8 · 5H2O |
| 8.DH.70 | Joteite | Ca2CuAl(AsO4)[AsO3(OH)]2(OH)2 · 5H2O |
| 8.DH.75 | Kampelite | Ba6Mg3Sc8(PO4)12(OH)6 · 7H2O |
| 8.DH.80 | Kapundaite | NaCaFe4(PO4)4(OH)3 · 5H2O |
| 8.DH.85 | Vaniniite | Ca2Mn2+3Mn3+2O2(AsO4)4 · 2H2O |
Fluorescence of Whiteite-(CaMnMg)
Not fluorescent
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 Whiteite-(CaMnMg)
mindat.org URL:
https://www.mindat.org/min-4278.html
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References for Whiteite-(CaMnMg)
Reference List:
Moore, Paul Brian, Ito, Jun (1978) I. Whiteite, a new species, and a proposed nomenclature for the jahnsite-whiteite complex series. II. New data on xanthoxenite. III. Salmonsite discredited. Mineralogical Magazine, 42 (323) 309-323 doi:10.1180/minmag.1978.042.323.01
Localities for Whiteite-(CaMnMg)
Showing 10 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.
Austria | |
| Niedermayr (1997) |
Brazil | |
| Baijot et al. (2012) |
| Sergio Varvello collection |
Namibia | |
| von Bezing (2007) |
| Witzke (2023) | |
Spain | |
| Calvo Rebollar et al. (2022) |
USA | |
| Whitmore et al. (2004) +1 other reference |
| Journal of Pegmatology vol. 1 +2 other references | |
| A. Kampf 2-2018 |
| Grice et al. (1989) |
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Palermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA