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Wiperamingaite
A valid IMA mineral species
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Formula:
NaCaFe3+Al(PO4)F5(OH) · H2O
Colour:
brownish-orange to brownish-pink
Lustre:
Vitreous
Specific Gravity:
3.11 (Calculated)
Crystal System:
Orthorhombic
Name:
For the type locality
New structure type.
Not unique in terms of chemical combination - compare, e.g., fluorarrojadite-(BaNa).
Not unique in terms of chemical combination - compare, e.g., fluorarrojadite-(BaNa).
Unique Identifiers
Mindat ID:
470832
Long-form identifier:
mindat:1:1:470832:8
IMA Classification of Wiperamingaite
Approved
IMA Formula:
NaCaFe3+Al(PO4)F5(OH)·H2O
Approval year:
2023
Approval history:
IMA No. 2023-023
Classification of Wiperamingaite
8.DF.
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
F : With only medium-sized cations, (OH,etc.):RO4 > 3:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
F : With only medium-sized cations, (OH,etc.):RO4 > 3:1
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 |
|---|---|---|
| Wip | 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 Wiperamingaite
Vitreous
Transparency:
Transparent, Translucent
Colour:
Brownish-orange to brownish-pink
Streak:
White
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
{001}
{001}
Fracture:
Splintery
Density:
3.11 g/cm3 (Calculated)
Optical Data of Wiperamingaite
Type:
Biaxial (-)
RI values:
nα = 1.538(2) nβ = 1.599(2) nγ = 1.6142
2V:
Measured: 52° (2), Calculated: 51.1°
Max. Birefringence:
δ = 0.076
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Dispersion:
distinct r > v
Orientation:
X = a, Y = b, Z = c
Pleochroism:
Visible
Comments:
X colourless, Y brown yellow, Z yellow; Y > Z > X.
Chemistry of Wiperamingaite
Mindat Formula:
NaCaFe3+Al(PO4)F5(OH) · H2O
Element Weights:
Crystallography of Wiperamingaite
Crystal System:
Orthorhombic
Class (H-M):
222 - Disphenoidal
Space Group:
P212121
Cell Parameters:
a = 5.354(1) Å, b = 5.591(1) Å, c = 26.279(5) Å
Ratio:
a:b:c = 0.958 : 1 : 4.7
Unit Cell V:
786.64 ų (Calculated from Unit Cell)
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.29 Å | (28) |
| 3.868 Å | (100) |
| 2.825 Å | (32) |
| 2.682 Å | (20) |
| 2.397 Å | (19) |
| 2.199 Å | (29) |
| 1.933 Å | (52) |
| 1.702 Å | (23) |
Type Occurrence of Wiperamingaite
General Appearance of Type Material:
tablets up to 0.25 mm across
Place of Conservation of Type Material:
collections of the South Australian Museum, North Terrace,
Adelaide, South Australia 5000, Australia, registration number G35314
Adelaide, South Australia 5000, Australia, registration number G35314
Geological Setting of Type Material:
The Wiperaminga Hill pegmatites belongto the beryl-columbite phosphate-rare-element type in the classification of Černý.
hydrothermal alteration of triplite-zwieselite
hydrothermal alteration of triplite-zwieselite
Associated Minerals at Type Locality:
Synonyms of Wiperamingaite
Other Language Names for Wiperamingaite
Dutch:Wiperamingaiet
German:Wiperamingait
Related Minerals - Strunz-mindat Grouping
| 8.DF. | Kernowite | Cu2Fe(AsO4)(OH)4 · 4H2O |
| 8.DF.05 | Hotsonite | Al11(SO4)3(PO4)2(OH)21 · 16H2O |
| 8.DF.10 | Liskeardite | [(Al,Fe)32(AsO4)18(OH)42(H2O)22] · 52H2O |
| 8.DF.10 | Rosièresite | (Pb, Cu, Al, P, O, H) |
| 8.DF.10 | Evansite | Al3(PO4)(OH)6 · 6H2O |
| 8.DF.10 | Bolivarite | Al2(PO4)(OH)3 · 4-5H2O |
| 8.DF.15 | Rusakovite | (Fe3+,Al)5(VO4,PO4)2(OH)9 · 3H2O |
| 8.DF.20 | Liroconite | Cu2Al(AsO4)(OH)4 · 4H2O |
| 8.DF.25 | Sieleckiite | Cu3Al4(PO4)2(OH)12 · 2H2O |
| 8.DF.30 | Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| 8.DF.35 | Parnauite | Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| 8.DF.40 | Gladiusite | Fe2(Fe,Mg)4(PO4)(OH)11(H2O) |
| 8.DF.50 | Forêtite | Cu2Al2(AsO4)(OH,O,H2O)6 |
Fluorescence of Wiperamingaite
none
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 Wiperamingaite
mindat.org URL:
https://www.mindat.org/min-470832.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Wiperamingaite
Localities for Wiperamingaite
Showing 1 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.
Australia (TL) | |
| Bosi et al. (2023) |
