Haigerachite (original) (raw)
A valid IMA mineral species
Formula:
KFe3+3(PO3OH)2[PO2(OH)2]6 · 4H2O
Crystal System:
Monoclinic
Name:
Named for the village and valley near the locality.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:6985:0
24b3e966-c05d-4715-b53a-164f40ca0fd2
IMA Classification of HaigerachiteHide
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IMA Formula:
KFe3+3(H2PO4)6(HPO4)2 · 4H2O
Type description reference:
Classification of HaigerachiteHide
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8.CF.10
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
F : With large and medium-sized cations, RO4:H2O > 1:1
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Hga | 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 HaigerachiteHide
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Transparency:
Transparent, Translucent
Cleavage:
Distinct/Good
{001}
Fracture:
Irregular/Uneven
Density:
2.44(1) g/cm3 (Measured) 2.445 g/cm3 (Calculated)
Optical Data of HaigerachiteHide
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RI values:
_n_α = 1.557(2) _n_β = 1.598(2) _n_γ = 1.602(2)
2V:
Measured: 32° (2), Calculated: 34°
δ = 0.045
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Dispersion:
relatively weak
Comments:
X perpendicular to (001)
Chemistry of HaigerachiteHide
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Mindat Formula:
KFe3+3(PO3OH)2[PO2(OH)2]6 · 4H2O
Crystallography of HaigerachiteHide
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Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 16.95(3) Å, b = 9.59(2) Å, c = 17.57(3) Å
β = 90.85°
Ratio:
a:b:c = 1.767 : 1 : 1.832
Unit Cell V:
2,855.70 ų (Calculated from Unit Cell)
Morphology:
Thin tabular, pseudohexagonal crystals flattened (001), showing {100} and {110}.
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.83 Å | (100) |
| 3.75 Å | (100) |
| 3.23 Å | (50) |
| 3.02 Å | (90) |
Geological EnvironmentHide
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Type Occurrence of HaigerachiteHide
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General Appearance of Type Material:
White spherules, to 0.2 mm across, consisting of scaly crystals to 0.05 mm; rarely as well-developed, thin tabular, pseudohexagonal crystals.
Place of Conservation of Type Material:
- Institute of Mineralogy and Crystal Chemistry, University of Stuttgart, Germany.
- Staatlichen Museum für Naturkunde, Stuttgart, Germany.
Geological Setting of Type Material:
Secondary phosphate formed on dump material.
Associated Minerals at Type Locality:
Reference:
Walenta, K., Theye, Th. (1999) Haigerachit, ein neues Phosphatmineral von der Grube Silberbrünnle bei Gengenbach im mittleren Schwarzwald. Aufschluss: 50: 1-7.
Synonyms of HaigerachiteHide
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Other Language Names for HaigerachiteHide
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Related Minerals - Strunz-mindat GroupingHide
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| 8.CF. | Naalasite | NaAl(AsO3OH)2 · H2O | Trig. 32 : _R_32 |
|---|---|---|---|
| 8.CF. | Falsterite | Ca2MgMn2+2Fe2+2Fe3+2Zn4(PO4)8(OH)4(H2O)14 | Mon. 2/m : _P_21/b |
| 8.CF. | Ferraioloite | MgMn2+4(Fe2+0.5Al3+0.5)4Zn4(PO4)8(OH)4(H2O)20 | Mon. |
| 8.CF. | Espadaite | Na4Ca3Mg2[AsO3(OH)]2[AsO2(OH)2]10 · 7H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : C c c a |
| 8.CF. | Liraite | NaCa2Mn2+2[Fe3+Fe2+]Mn2+2(PO4)6(H2O)2 | Orth. m _m_2 |
| 8.CF. | Nafeasite | Na3Fe3+3(AsO3OH)6 · 3H2O | Mon. 2 : _B_2 |
| 8.CF.05 | Grischunite | NaCa2Mn2+5Fe3+(AsO4)6 · 2H2O | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 8.CF.05 | Wicksite | NaCa2(Fe2+,Mn2+)4MgFe3+(PO4)6 · 2H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a |
| 8.CF.05 | Bederite | Ca2(Mn2+)4(Fe3+)2(PO4)6 · 2H2O | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 8.CF.05 | Tassieite | (Na,◻)Ca2(Mg,Fe2+,Fe3+)2(Fe2+,Mg)2(Fe3+,Mg)2(PO4)6 · 2H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a |
| 8.CF.05 | Maneckiite | (Na◻)Ca2Fe2+2(Fe3+Mg)Mn2(PO4)6 · 2H2O | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c a |
| 8.CF.10 | Yazganite | NaFe3+2(Mg,Mn2+)(AsO4)3 · H2O | Mon. 2/m : _B_2/b |
| 8.CF.15 | Currierite | Na4Ca3MgAl4(AsO3OH)12 · 9H2O | Hex. 622 : _P_622 |
| 8.CF.20 | Ríosecoite | Ca2Mg(AsO3OH)3(H2O)2 | Tric. 1 : _P_1 |
Other InformationHide
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Notes:
Soluble in dilute HCl or HNO3.
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 HaigerachiteHide
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References for HaigerachiteHide
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Localities for HaigerachiteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- 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.
| Germany (TL) | |
|---|---|
| Baden-Württemberg Freiburg Region Ortenaukreis Gengenbach Gengenbach ⓘ Silberbrünnle Mine (TL) | [Wittern (1995) +1 other reference |