Bariosincosite
A valid IMA mineral species
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About Bariosincosite
Formula:
Ba(V4+O)2(PO4)2 · 4H2O
Colour:
Pale green with a slight bluish tinge.
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
3.40 (Calculated)
Crystal System:
Tetragonal
Member of:
Name:
Named for its relationship to sincosite.
The barium analogue of sincosite and airdite. Closely related to airdite, which is essentially its Sr analogue. Bariosincosite and airdite are related chemically and by polytypism to the triclinic 1A structures of sincosite and fulbrightite. All four minerals comprise the sincosite group. Structurally related to the meta-autunite group.
Unique Identifiers
Mindat ID:
6816
Long-form identifier:
mindat:1:1:6816:7
Classification of Bariosincosite
Sincosite-type sheet
The sincosite-type sheet found in bariosincosite.
IMA Classification of Bariosincosite
Approved
IMA Formula:
Ba(V4+O)2(PO4)2·4H2O
Approval year:
1998
Type description reference:
8.CJ.65
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
J : With only large cations
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
J : With only large 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 |
|---|---|---|
| Bscs | 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 Bariosincosite
Vitreous
Transparency:
Transparent
Colour:
Pale green with a slight bluish tinge.
Streak:
Very pale green
Hardness:
3 on Mohs scale
Cleavage:
Distinct/Good
Distinct on {001}.
Distinct on {001}.
Fracture:
Splintery
Density:
3.40 g/cm3 (Calculated)
Optical Data of Bariosincosite
Type:
Uniaxial (-)
RI values:
nω = 1.721(2) nε = 1.715(2)
Max. Birefringence:
δ = 0.006
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
Pleochroism:
Weak
Comments:
E = colorless, O = pale green.
Chemistry of Bariosincosite
Mindat Formula:
Ba(V4+O)2(PO4)2 · 4H2O
Element Weights:
Crystallography of Bariosincosite
Crystal System:
Tetragonal
Cell Parameters:
a = 9.031(6) Å, c = 12.755(8) Å
Ratio:
a:c = 1 : 1.412
Unit Cell V:
1,040.28 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Pseudotetragonal, subparallel plates, often arranged in rosettes.
Comment:
Point Group: 4/m or 4/m 2/m 2/m. ; Space Group: P4/n or P4/nmm.
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0012720 | Bariosincosite | Roca M, Marcos M D, Amoros P, Alamo J, Beltran-Porter A, Beltran-Porter D (1997) Synthesis and crystal structure of a novel lamellar barium derivative: Ba(VOPO4)2*4H2O. Synthetic pathways for layered oxovanadium phosphate hydrates M(VOPO4)2*nH2O Inorganic Chemistry 36 3414-3421 | 1997 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.100 Å | (100) |
| 2.017 Å | (100) |
| 2.786 Å | (80) |
| 5.748 Å | (70) |
| 2.847 Å | (40) |
| 4.552 Å | (30) |
| 2.368 Å | (30) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 21 : Chemically precipitated carbonate, phosphate, iron formations | |
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47c : [Carbonates, phosphates, borates, nitrates] | |
| 47e : [Vanadates, chromates, manganates] |
Type Occurrence of Bariosincosite
General Appearance of Type Material:
irregular clusters of divergent crystals to 250 μm
Place of Conservation of Type Material:
South Australian Museum, Adelaide.
Geological Setting of Type Material:
Of low-temperature late-stage hydrothermal or supergene origin in a small vein.
Associated Minerals at Type Locality:
Synonyms of Bariosincosite
Other Language Names for Bariosincosite
Relationship of Bariosincosite to other Species
Member of:
Other Members of Sincosite Group:
| Airdite | Sr(V4+O)2(PO4)2 · 4H2O | Mon. m : Bb |
| Fulbrightite | Ca(V4+O)2(As5+O4)2 · 4H2O | Tric. 1 : P1 |
| Sincosite | Ca(V4+O)2(PO4)2 · 4H2O | Tet. 4/mmm(4/m2/m2/m) : P42/nnm |
Common Associates
Associations Based on Photo Data:
| 1 photo of Bariosincosite associated with Fluellite | Al2(PO4)F2(OH) · 7H2O |
| 1 photo of Bariosincosite associated with Metavariscite | AlPO4 · 2H2O |
Related Minerals - Strunz-mindat Grouping
| 8.CJ. | Airdite | Sr(V4+O)2(PO4)2 · 4H2O |
| 8.CJ. | Dobšináite | Ca2Ca(AsO4)2 · 2H2O |
| 8.CJ. | Sainfeldite | Ca5(AsO4)2(AsO3OH)2 · 4H2O |
| 8.CJ. | Caesiumpharmacosiderite | CsFe3+4[(AsO4)3(OH)4] · 4H2O |
| 8.CJ. | Jeankempite | Ca5(AsO4)2(HAsO4)2 · 7H2O |
| 8.CJ.05 | Stercorite | (NH4)Na(PO3OH) · 4H2O |
| 8.CJ.10 | Swaknoite | (NH4)2Ca(PO3OH)2 · H2O |
| 8.CJ.10 | Mundrabillaite | (NH4)2Ca(PO3OH)2 · H2O |
| 8.CJ.15 | Nabaphite | NaBaPO4 · 9H2O |
| 8.CJ.15 | Nastrophite | Na(Sr,Ba)PO4 · 9H2O |
| 8.CJ.20 | Haidingerite | CaHAsO4 · H2O |
| 8.CJ.25 | Rhabdophane-(Y) | YPO4 · H2O |
| 8.CJ.25 | Vladimirite | Ca4(AsO4)2(AsO3OH) · 4H2O |
| 8.CJ.27 | 'Churchite-(Dy)' | (Dy,Sm,Gd,Nd)PO4 · 2H2O |
| 8.CJ.30 | Ferrarisite | Ca5(AsO4)2(HAsO4)2 · 9H2O |
| 8.CJ.35 | Fulbrightite | Ca(V4+O)2(As5+O4)2 · 4H2O |
| 8.CJ.35 | Machatschkiite | (Ca,Na)6(AsO4)(HAsO4)3(PO4,SO4) · 15H2O |
| 8.CJ.40 | Rauenthalite | Ca3(AsO4)2 · 10H2O |
| 8.CJ.40 | Phaunouxite | Ca3(AsO4)2 · 11H2O |
| 8.CJ.45 | Brockite | (Ca,Th,Ce)PO4 · H2O |
| 8.CJ.45 | Smirnovskite | (Th,Ca)PO4 · nH2O |
| 8.CJ.45 | Rhabdophane-(Ce) | Ce(PO4) · 0.6H2O |
| 8.CJ.45 | Rhabdophane-(La) | La(PO4) · H2O |
| 8.CJ.45 | Rhabdophane-(Nd) | Nd(PO4) · H2O |
| 8.CJ.45 | Tristramite | (Ca,U4+,Fe3+)(PO4,SO4) · 2H2O |
| 8.CJ.45 | Grayite | (Th,Pb,Ca)(PO4) · H2O |
| 8.CJ.45 | Štěpite | U(AsO3OH)2 · 4H2O |
| 8.CJ.47 | Vysokýite | U4+[AsO2(OH)2]4 · 4H2O |
| 8.CJ.50 | Churchite-(Y) | Y(PO4) · 2H2O |
| 8.CJ.50 | Brushite | Ca(PO3OH) · 2H2O |
| 8.CJ.50 | Ardealite | Ca2(PO3OH)(SO4) · 4H2O |
| 8.CJ.50 | Pharmacolite | Ca(HAsO4) · 2H2O |
| 8.CJ.50 | 'Churchite-(Nd)' | Nd(PO4) · 2H2O |
| 8.CJ.55 | Mcnearite | NaCa5(AsO4)(HAsO4)4 · 4H2O |
| 8.CJ.60 | Dorfmanite | Na2(PO3OH) · 2H2O |
| 8.CJ.65 | Sincosite | Ca(V4+O)2(PO4)2 · 4H2O |
| 8.CJ.70 | Catalanoite | Na2(PO3OH) · 8H2O |
| 8.CJ.75 | Guérinite | Ca6(HAsO4)3(AsO4)2 · 10.5H2O |
| 8.CJ.85 | Ningyoite | (U,Ca,Ce)2(PO4)2 · 1-2H2O |
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 Bariosincosite
mindat.org URL:
https://www.mindat.org/min-6816.html
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References for Bariosincosite
Localities for Bariosincosite
Showing 4 localities.
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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) | |
| American Mineralogist: 85: 1324. +1 other reference |
Canada | |
| Mineralogical Society of America - ... |
New Zealand | |
| Mineralogical Society of America - ... | |
Spain | |
| Calvo et al. (2003) |
Quick NavTopAbout BariosincositeUnique IdentifiersClassification IMA Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Spring Creek Mine, Wilmington, District Council of Mount Remarkable, South Australia, Australia