Bariopharmacosiderite
A valid IMA mineral species
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About Bariopharmacosiderite
Formula:
Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O
Colour:
Brown, yellow, reddish brown, reddish, greenish, bluish
Lustre:
Vitreous
Hardness:
2½
Specific Gravity:
3.05
Crystal System:
Tetragonal
Member of:
Name:
Originally named barium-pharmacosiderite by Kurt Walenta in 1966 in allusion to its composition reflecting the dominant barium and its relationship to pharmacosiderite. Renamed by the IMA in 2008.
Pharmacosiderite Group.
The tetragonal-pseudocubic Ba-Fe-end member. Forms solid solutions with pharmacosiderite, natropharmacosiderite, pharmacoalumite and other members of the pharmacosiderite group.
The polymorphs bariopharmacosiderite-C (cubic) and bariopharmacosiderite-Q (tetragonal) are described by Hager et al. (2010).
The tetragonal-pseudocubic Ba-Fe-end member. Forms solid solutions with pharmacosiderite, natropharmacosiderite, pharmacoalumite and other members of the pharmacosiderite group.
The polymorphs bariopharmacosiderite-C (cubic) and bariopharmacosiderite-Q (tetragonal) are described by Hager et al. (2010).
Unique Identifiers
Mindat ID:
472
Long-form identifier:
mindat:1:1:472:9
IMA Classification of Bariopharmacosiderite
Approved
IMA status notes:
Redefined by the IMA, Renamed by the IMA
IMA Formula:
Ba0.5Fe3+4(As5+O4)3(OH)4·5H2O
Approval year:
1990
First published:
1966
Approval history:
Redefined 1994 s.p.: Walenta (1994).
Renamed: Burke (2008).
Renamed: Burke (2008).
Classification of Bariopharmacosiderite
8.DK.10
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
42.8.1a.3
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : (AB)5(XO4)3Zq·xH2O
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : (AB)5(XO4)3Zq·xH2O
20.2.22
20 : Arsenates (also arsenates with phosphate, but without other anions)
2 : Arsenates of Be, Mg, Ca or Ba
20 : Arsenates (also arsenates with phosphate, but without other anions)
2 : Arsenates of Be, Mg, Ca or Ba
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 |
|---|---|---|
| Bpsd | 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 Bariopharmacosiderite
Vitreous
Transparency:
Transparent, Translucent
Colour:
Brown, yellow, reddish brown, reddish, greenish, bluish
Hardness:
2½ on Mohs scale
Hardness Data:
Estimated
Cleavage:
Distinct/Good
(100) and (001), both good
(100) and (001), both good
Fracture:
Conchoidal
Density:
3.05 g/cm3 (Measured) 3.07 g/cm3 (Calculated)
Optical Data of Bariopharmacosiderite
Type:
Uniaxial (+/-)
RI values:
nω = 1.728 nε = 1.718
Max. Birefringence:
δ = 0.010
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:
Very High (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 uniaxial interference figure - the conoscopic
(convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis
centred and vertical. The coloured rings are isochromatics, computed with the
same physics as the Michel-Lévy bar above; the dark cross is the isogyre.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.
Pleochroism:
Non-pleochroic
Chemistry of Bariopharmacosiderite
Mindat Formula:
Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O
Element Weights:
Crystallography of Bariopharmacosiderite
Polytype:
Formula:
Crystal System:
Class (H-M)
Space Group:
Space Group Setting:
Cell Parameters:
Ratio:
Unit Cell Volume (calc):
Z:
Comment:
| Bariopharmacosiderite-C | Bariopharmacosiderite-Q |
|---|---|
| Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O | Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O |
| Isometric | Tetragonal |
| 43m - Hextetrahedral | 42m - Scalenohedral |
| F43m | P42m |
| F43m | P42m |
| a = 7.942(1) Å | a = 7.947(1) Å, c = 8.049(2) Å |
| a:c = 1 : 1.013 | |
| V 500.94 ų (Calculated from Unit Cell) | V 508.33 ų (Calculated from Unit Cell) |
| 1 | 1 |
| P4̅3m | P4̅2m |
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.06 Å | (90) |
| 4.65 Å | (60) |
| 4.04 Å | (80) |
| 3.28 Å | (100) |
| 2.85 Å | (90) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] |
Type Occurrence of Bariopharmacosiderite
General Appearance of Type Material:
Cubic yellow-brown crystals up to 1 mm in size.
Associated Minerals at Type Locality:
Synonyms of Bariopharmacosiderite
Other Language Names for Bariopharmacosiderite
Dutch:Bariopharmacosideriet
Spanish:Bariofarmacosiderita
Varieties of Bariopharmacosiderite
| Calcium-Pharmacosiderite | Ca-bearing bariopharmacosiderite. Discredited as a distinct species. |
Relationship of Bariopharmacosiderite to other Species
Member of:
Other Members of Pharmacosiderite Group:
| Caesiumpharmacosiderite | CsFe3+4[(AsO4)3(OH)4] · 4H2O | Iso. 43m : P43m |
| Hydroniumpharmacosiderite | (H3O)Fe3+4(AsO4)3(OH)4 · 4H2O | Iso. 43m : P43m |
| Natropharmacosiderite | NaFe3+4(AsO4)3(OH)4 · 4H2O | Iso. 43m : P43m |
| Pharmacosiderite | KFe3+4(AsO4)3(OH)4 · 6-7H2O | Iso. 43m : P43m |
| Plumbopharmacosiderite | Pb0.5Fe3+4(AsO4)3(OH)4 · 5H2O | Iso. 43m : P43m |
| Strontiopharmacosiderite | Sr0.5Fe3+4[(AsO4)3(OH)4] · 4H2O | Tet. 42m : P42m |
| Thalliumpharmacosiderite | TlFe3+4[(AsO4)3(OH)4] · 4H2O | Iso. 43m : F43m |
Common Associates
Associations Based on Photo Data:
| 94 photos of Bariopharmacosiderite associated with Scorodite | Fe3+AsO4 · 2H2O |
| 68 photos of Bariopharmacosiderite associated with Quartz | SiO2 |
| 64 photos of Bariopharmacosiderite associated with Olivenite | Cu2(AsO4)(OH) |
| 49 photos of Bariopharmacosiderite associated with Baryte | BaSO4 |
| 47 photos of Bariopharmacosiderite associated with Carminite | PbFe3+2(AsO4)2(OH)2 |
| 33 photos of Bariopharmacosiderite associated with Dufrénite | Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O |
| 31 photos of Bariopharmacosiderite associated with Goethite | Fe3+O(OH) |
| 30 photos of Bariopharmacosiderite associated with Fluorite | CaF2 |
| 29 photos of Bariopharmacosiderite associated with Arseniosiderite | Ca2Fe3+3(AsO4)3O2 · 3H2O |
| 22 photos of Bariopharmacosiderite associated with Alunite Supergroup | AD3(XO4)2(OH)6 |
Related Minerals - Strunz-mindat Grouping
| 8.DK. | Regerite | KFe6(PO4)4(OH)7(H2O)6 · 4H2O |
| 8.DK. | Richelsdorfite | Ca2Cu5Sb(AsO4)4(OH)6Cl · 6H2O |
| 8.DK. | Bimbowrieite | NaMgFe3+5(PO4)4(OH)6 · 2H2O |
| 8.DK. | Puttapaite | Pb2Mn2+2ZnCr3+4O2(AsO4)4(OH)6 · 12H2O |
| 8.DK.10 | Thalliumpharmacosiderite | TlFe3+4[(AsO4)3(OH)4] · 4H2O |
| 8.DK.10 | Natropharmacosiderite | NaFe3+4(AsO4)3(OH)4 · 4H2O |
| 8.DK.10 | Pharmacosiderite | KFe3+4(AsO4)3(OH)4 · 6-7H2O |
| 8.DK.10 | Plumbopharmacosiderite | Pb0.5Fe3+4(AsO4)3(OH)4 · 5H2O |
| 8.DK.10 | Strontiopharmacosiderite | Sr0.5Fe3+4[(AsO4)3(OH)4] · 4H2O |
| 8.DK.10 | Hydroniumpharmacosiderite | (H3O)Fe3+4(AsO4)3(OH)4 · 4H2O |
| 8.DK.12 | Hydroniumpharmacoalumite | (H3O)Al4(AsO4)3(OH)4 · 4.5H2O |
| 8.DK.12 | Bariopharmacoalumite | Ba0.5Al4(AsO4)3(OH)4 · 4H2O |
| 8.DK.12 | Pharmacoalumite | KAl4(AsO4)3(OH)4 · 6.5H2O |
| 8.DK.12 | Calciopharmacoalumite | Ca0.5Al4(AsO4)3(OH)4 · 5H2O |
| 8.DK.12 | Natropharmacoalumite | NaAl4(AsO4)3(OH)4 · 4H2O |
| 8.DK.15 | Matioliite | NaMgAl5(PO4)4(OH)6 · 2H2O |
| 8.DK.15 | Burangaite | NaFe2+Al5(PO4)4(OH)6 · 2H2O |
| 8.DK.15 | Natrodufrénite | NaFe3+Fe3+5(PO4)4O(OH)5(H2O)2 |
| 8.DK.15 | Dufrénite | Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O |
| 8.DK.15 | Gayite | NaMn2+Fe3+5(PO4)4(OH)6 · 2H2O |
| 8.DK.20 | Kidwellite | NaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33 |
| 8.DK.25 | Bleasdaleite | (Ca,Fe3+)2Cu5(Bi,Cu)(PO4)4(H2O,OH,Cl)13 |
| 8.DK.30 | Matulaite | (Fe3+,Al)Al7(PO4)4(PO3OH)2(OH)8(H2O)8 · 8H2O |
| 8.DK.35 | Krasnovite | Ba(Al,Mg)(PO4,CO3)(OH)2 · H2O |
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 Bariopharmacosiderite
mindat.org URL:
https://www.mindat.org/min-472.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Bariopharmacosiderite
Reference List:
Walenta, Kurt, Walenta, Kurt (1966) Beiträge zur Kenntnis seltener Arsenatmineralien unter besonderer Berücksichtigung von Vorkommen des Schwarzwaldes. 3. Folge (Schluß). [Rare arsenate minerals with special consideration of occurrences in the Black Forest. Part III (end)]. Tschermaks Mineralogische und Petrographische Mitteilungen, 11 (1). 121-164 doi:10.1007/bf01127708
Burke, Ernst A. J. (2008) Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks. The Mineralogical Record, 39 (2) 131-135
Hager, S. L., Leverett, P., Williams, P. A., Mills, S. J., Hibbs, D. E., Raudsepp, M., Kampf, A. R., Birch, W. D. (2010) The single-crystal X-ray structures of bariopharmacosiderite-C, bariopharmacosiderite-Q and natropharmacosiderite. The Canadian Mineralogist, 48 (6) 1477-1485 doi:10.3749/canmin.48.5.1477
Localities for Bariopharmacosiderite
Showing 214 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 | |
| Sorrell (n.d.) |
| Rankin et al. (2002) | |
| [Bariopharmacosiderite-Q] Hager et al. (2010) |
| Kolitsch et al. (1999) |
| Bottrill et al. (2008) |
| Specimen in Museum Victoria collection |
| |
| Henry (1988) |
| [Bariopharmacosiderite-C] Hager et al. (2010) | |
Austria | |
| Christian Auer (2014) |
| Carinthia II (2017) |
| Kolitsch et al. (2010) |
| Niedermayr (2006) |
| R.Poeverlein (2016) |
| Poeverlein (2008) | |
| Auer & Postl (2016) |
| Reicht et al. (2016) |
| Poeverlein et al. (2010) |
| Poeverlein et al. (2010) | |
| Poeverlein et al. (2010) | |
| 58. +1 other reference |
| Schnorrer et al. (2007) |
| Kolitsch et al. (2008) |
Belgium | |
| Lefèvre (2001) +3 other references |
Brazil | |
| Jhonatan Gomes collection +1 other reference |
Chile | |
| maurizio dini collection - quantitative ... |
| Uwe Kolitsch collection (SXRD and/or SEM-EDS-analysed) |
China | |
| Yi Li and Lairen Lai (1991) +2 other references |
Czech Republic | |
| |
| Sejkora +3 other references |
| Čech |
| [Bariopharmacosiderite-Q] Sejkora et al. (2019) |
| Sejkora et al. (2013) |
| Pauliš et al. (2013) |
| Pauliš Petr et al. (2012) |
Europe | |
| Kolitsch (1997) +2 other references |
France | |
| Uwe Kolitsch (unpublished SEM-EDS analyses) |
| Uwe Kolitsch (unpublished SEM-EDS analyses) |
| Walenta et al. (1980) +2 other references | |
| Queneau (n.d.) |
| Gourault et al. (2021) |
| Gourault et al. (2021) |
| Wittern et al. (1997) |
| Wittern et al. (1997) |
| Bari (1982) | |
| Thierry Brunsperger collection |
| T. Brunsperger observations | |
| Thierry Brunsperger collection | |
| Wittern et al. (1997) |
| Wittern et al. (1997) |
| Thierry Brunsperger collection |
| Wittern et al. (1997) | |
| Escande et al. (1973) +6 other references |
| Escande et al. (1973) +6 other references | |
| Patureau et al. (2011) |
| Patureau et al. (2011) | |
| Queneau (n.d.) |
| Georges FAVREAU collection & EDX ... +1 other reference |
| Favreau et al. (2010) |
| collection bernard bouissac/antoine ... |
| Sarp et al. (1994) +1 other reference |
Germany | |
| Emser Hefte 15 (3) |
| Walenta (1992) |
| Weiß (1990) |
| Brill (2017) |
| Walenta (1989) +1 other reference | |
| Weiß (1990) |
| Walenta (1998) |
| Walenta (1996) |
| www.mineralienatlas.de (2021) | |
| [Wittern (1995) |
| Walenta (1992) |
| [Wittern (1995) |
| Walenta (1989) | |
| Walenta (1992) |
| TMPM 3/11 (1966) +4 other references |
| Walenta (1994) +1 other reference |
| Wittern (2001) |
| Oppenländer (1991) +1 other reference |
| Walenta (1989) +1 other reference | |
| Walenta (1992) |
| |
| |
| Götz (1989) +1 other reference | |
| Markl (1992) |
| |
| Walenta (1992) |
| [var: Calcium-Pharmacosiderite] Walenta (1966) |
| Walenta (1992) | |
| Walenta (1992) | |
| Weiß (1990) |
| Walenta (1992) |
| Walenta (1992) |
| Walenta (1992) |
| Walenta (1992) |
| Wittern (2001) |
| Wittern (2001) +1 other reference | |
| Lorenz (1991) |
| Lorenz (2003) |
| |
| Lorenz et al. (2007) |
| Belendorff (2021) |
| Collection of Steffen Michalski |
| Petitjean et al. (2000) | |
| Belendorff et al. (1987) | |
| Collection of Steffen Michalski | |
| Belendorff (2021) |
| Collection of Volker Betz |
| Legner et al. (2022) |
| Gröbner (2007) |
| Gröbner (2007) |
| Hajek (2006) |
| Weiß (1990) |
| Gerhard Möhn Collection. Identified by ... |
| Bergbau PSL Blatt Lebach 6507-4 +1 other reference |
| Wittern (2001) |
| Massanek et al. (2005) |
| Effenberger et al. (2000) | |
| Thomas Witzke |
| Neues Jahrb. Mineral. Mon. 558-576 | |
| Massanek et al. (2005) | |
| Krause et al. (2002) |
| Witzke et al. (2006) |
| Wittern (2001) |
| |
| Gerstenberg (n.d.) |
| Gröbner et al. (2007) +1 other reference | |
| 43-47 +2 other references |
| Gröbner et al. (2008) |
| thueringenmineralien.jimdo.com (n.d.) |
| Marcus Voigt Collection |
Greece | |
| Rieck et al. (1999) +1 other reference |
| |
| Gröbner (2001) | |
| Rieck et al. (2018) |
Hungary | |
| GEODA |
| Sándor et al. (2005) |
| Körmendy Regina (2011) |
Italy | |
| M.E. Ciriotti |
| Bracco R. (2007) +1 other reference |
| Fabrizio Castellaro Collection +1 other reference |
| Vergani et al. (2020) |
| Carmagnola et al. (2019) |
| Vergani et al. (2020) |
| Vergani et al. (2020) | |
| Biffi P. et al. (Varese) |
| Biffi P. et al. (2004) |
| Gentile et al. (2023) |
| Biffi P. et al. (2004) | |
| Cámara et al. (2017) |
| ALBERTINI C. (2014) |
| Fernando Caboni et al. (2024) |
| Fernando Caboni et al. (2024) | |
| I. Campostrini - Unimi (SEM-EDS) |
| Ciriotti M.E. and Blass.G. (2010) |
| Bortolozzi et al. (2013) |
| Ferretti et al. (2019) |
| Bonifazi (2020) |
| Published on LIBVRNA N°1 may 2021. Analysed by Spectralab srl (SEM/EDS and Raman) |
| Biagioni et al. (2008) |
Japan | |
| Akira Kato (2009) |
Morocco | |
| Favreau (2026) |
| Analyses for Jordi Fabre +1 other reference |
Portugal | |
| Pedro Alves collection. Characterized ... |
Russia | |
| Ivashchenko et al. (2018, June) |
Slovakia | |
| Martin Števko |
| Pauliš | |
| Števko et al. (2011) |
| Koděra et al. (1986) |
| Ondrejka et al. (2024) |
| Števko M. (2022) | |
| Števko M. (2022) | |
| Zajzon et al. (2023) |
| Martin Števko-unpublished |
| Martin Števko-unpublished | |
South Africa | |
| Atanasova et al. (2016) |
| Species list by Dr. Hans Börner |
Spain | |
| https://mineratlas.com/location/2428 |
| Calvo (2015) |
| Garrido et al. (2013) |
| Joan Abella i Creus |
| Joan Rosell (2015) |
| Viñals et al. (2007) |
Switzerland | |
| Majzlan et al. (2016) +1 other reference |
| |
| Meisser (1999) |
| Meisser (1999) | |
| Ansermet (2012) |
Taiwan | |
| James Huang |
Thailand | |
| Patrice Queneau Collection visual identification. Confirmed. Analyzed by Nicolas Meisser (Naturéum) |
UK | |
| - (2003) |
| Neall et al. (2009) |
| Day (1999) | |
| Mike Leppington collection (visual ID) |
| Green et al. (2008) |
USA | |
| Kampf et al. (2018) |
| Housley R. | |
| King et al. (1993) |
| Eckel et al. (1997) |
| Silver Coin Mine. Compact Disc. Paul ... |
| Castor et al. (2004) |
| Rocks & Minerals. Nov. 1999. |
| Dunn et al. (1985) +1 other reference |
| Thorne (n.d.) |
| Collected by and in the collection of ... | |
| Collected by and in the collection of ... | |
| Marty et al. (1993) |
| |
| Collected by and in the collection of ... | |
| Patrick Haynes. Some ID'd by Tony Kampf | |
| Collection of Alex Earl | |
| Paul M. Adams Collection |
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Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany