Rhabdoborite-(V)
A valid IMA mineral species
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About Rhabdoborite-(V)
Formula:
Mg12(V5+,Mo6+,W6+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} (x < 1)
Colour:
Light yellow, colorless, bright yellow
Lustre:
Vitreous
Specific Gravity:
3.39 (Calculated)
Crystal System:
Hexagonal
Member of:
Name:
The rootname rhabdoborite reflects morphological (rhabdos is rod, in Greek) and chemical (borate) features of the mineral. The suffix/modifier indicates the predominant, species-defining M component.
Type Locality:
Isostructural with:
Unique Identifiers
Mindat ID:
52886
Long-form identifier:
mindat:1:1:52886:7
Similar Names
| Rhabdoborite-(Mo) | A valid IMA mineral species | Mg12Mo6+1.33O6(BO3)6F2 |
| Rhabdoborite-(W) | A valid IMA mineral species | Mg12(W6+,V5+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} |
IMA Classification of Rhabdoborite-(V)
Approved
IMA Formula:
Mg12(V5+,Mo6+,W6+)1.5O6{[BO3]6-x[(P,As5+)O4]xF2-x} (x < 1)
Approval year:
2018
First published:
2020
Classification of Rhabdoborite-(V)
6.AB.85
6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
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 |
|---|---|---|
| Rbo-V | 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 Rhabdoborite-(V)
Vitreous
Transparency:
Transparent
Colour:
Light yellow, colorless, bright yellow
Streak:
White
Hardness Data:
Could not be measured
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
None observed
Fracture:
Irregular/Uneven
Comment:
Rod-like individuals, 30–40 μm thick, can easily split into very thin needles.
Density:
3.39 g/cm3 (Calculated)
Comment:
Density could not be measured due to intergrowths with anhydrite.
Optical Data of Rhabdoborite-(V)
Type:
Uniaxial (+)
RI values:
nω = 1.696(3) nε = 1.740(4)
Max. Birefringence:
δ = 0.044
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:
Non-pleochroic
Chemistry of Rhabdoborite-(V)
Mindat Formula:
Mg12(V5+,Mo6+,W6+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} (x < 1)
Crystallography of Rhabdoborite-(V)
Crystal System:
Hexagonal
Class (H-M):
6 - Pyramidal
Space Group:
P63
Cell Parameters:
a = 10.6314(4) Å, c = 4.5661(2) Å
Ratio:
a:c = 1 : 0.429
Unit Cell V:
446.95 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Long-prismatic to acicular or rod-like crystals with hexagonal, polygonal or roundish cross section. More typically, combined in parallel or radial intergrowths, bunches, sheaf- or broom-like clusters up to 1 cm long. Sometimes as open-work or radial, bush-like aggregates up to 1 cm across.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.17 Å | (100) |
| 5.301 Å | (44) |
| 3.472 Å | (76) |
| 2.763 Å | (64) |
| 2.547 Å | (61) |
| 2.226 Å | (79) |
| 1.701 Å | (63) |
| 1.474 Å | (31) |
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 45a : [Sulfates, arsenates, selenates, antimonates] | |
| 45b : [Other oxidized fumarolic minerals] |
Type Occurrence of Rhabdoborite-(V)
General Appearance of Type Material:
Long-prismatic to acicular crystals up to 0.04 ×0.04×7 mm3 typically combined in aggregates up to 1 cm.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration number 5125/1.
Geological Setting of Type Material:
Fumarole, at a depth of 3-4 m below the surface, and at a temperature of 470–480 °C.
Associated Minerals at Type Locality:
Synonyms of Rhabdoborite-(V)
Other Language Names for Rhabdoborite-(V)
Dutch:Rhabdoboriet-(V)
German:Rhabdoborit-(V)
Relationship of Rhabdoborite-(V) to other Species
Member of:
Other Members of Rhabdoborite Group:
| Rhabdoborite-(Mo) | Mg12Mo6+1.33O6(BO3)6F2 | Hex. 6 : P63 |
| Rhabdoborite-(W) | Mg12(W6+,V5+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} | Hex. 6 : P63 |
Common Associates
Associations Based on Photo Data:
| 1 photo of Rhabdoborite-(V) associated with Rhabdoborite-(W) | Mg12(W6+,V5+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} |
| 1 photo of Rhabdoborite-(V) associated with Berzeliite | (NaCa2)Mg2(AsO4)3 |
| 1 photo of Rhabdoborite-(V) associated with Svabite | Ca5(AsO4)3F |
Related Minerals - Strunz-mindat Grouping
| 6.AB. | Chubarovite | KZn2(BO3)Cl2 |
| 6.AB. | Rhabdoborite-(Mo) | Mg12Mo6+1.33O6(BO3)6F2 |
| 6.AB.05 | Hambergite | Be2(BO3)(OH) |
| 6.AB.10 | Berborite | Be2(BO3)(OH) · H2O |
| 6.AB.15 | Jeremejevite | Al6(BO3)5(F,OH)3 |
| 6.AB.20 | Yuanfuliite | Mg(Fe3+,Al)O(BO3) |
| 6.AB.20 | Warwickite | (Mg,Ti,Fe,Al)2O(BO3) |
| 6.AB.25 | Karlite | (Mg,Al)6.5(BO3)3(OH)4(◻,Cl)0.5 |
| 6.AB.30 | Marinaite | Cu2Fe3+O2(BO3) |
| 6.AB.30 | Savelievaite | Mg2Cr3+O2(BO3) |
| 6.AB.30 | Fredrikssonite | Mg2Mn3+O2(BO3) |
| 6.AB.30 | Vonsenite | Fe2+2Fe3+(BO3)O2 |
| 6.AB.30 | Ludwigite | Mg2Fe3+(BO3)O2 |
| 6.AB.30 | Azoproite | (Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2 |
| 6.AB.30 | Bonaccordite | Ni2Fe3+(BO3)O2 |
| 6.AB.35 | Folvikite | Sb5+Mn3+(Mg,Mn2+)10O8(BO3)4 |
| 6.AB.35 | Pinakiolite | (Mg,Mn2+)2Mn3+(BO3)O2 |
| 6.AB.40 | Takéuchiite | (Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2 |
| 6.AB.40 | Blatterite | Sb5+3(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32 |
| 6.AB.40 | Orthopinakiolite | (Mg,Mn2+)2Mn3+(BO3)O2 |
| 6.AB.40 | Chestermanite | Mg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2 |
| 6.AB.45 | Aluminomagnesiohulsite | (Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2 |
| 6.AB.45 | Hulsite | Fe2+2Fe3+O2(BO3) |
| 6.AB.45 | Magnesiohulsite | Mg2Fe3+O2(BO3) |
| 6.AB.50 | Fluoborite | Mg3(BO3)(F,OH)3 |
| 6.AB.50 | Hydroxylborite | Mg3(BO3)(OH)3 |
| 6.AB.55 | Shabynite | Mg5(BO3)(OH)5(Cl,OH)2 · 4H2O |
| 6.AB.55 | Wightmanite | Mg5(BO3)O(OH)5 · 2H2O |
| 6.AB.60 | Gaudefroyite | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 |
| 6.AB.65 | Sakhaite | Ca48Mg16(BO3)32(CO3)16 · 2(H2O,HCl) |
| 6.AB.70 | Harkerite | Ca48Mg16[AlSi4O15(OH)]4(BO3)16(CO3)16 · 2(H2O,HCl) |
| 6.AB.75 | Pertsevite-(F) | Mg2(BO3)(F,OH) |
| 6.AB.75 | Pertsevite-(OH) | Mg2(BO3)(OH) |
| 6.AB.80 | Jacquesdietrichite | Cu2(H2BO3)(OH)3 |
| 6.AB.85 | Rhabdoborite-(W) | Mg12(W6+,V5+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} |
| 6.AB.85 | Painite | CaZrAl9(BO3)O15 |
| 6.AB.90 | Mengxianminite | (Ca,Na)2Sn2(Mg,Fe)3Al8[(BO3)(BeO4)O6]2 |
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 Rhabdoborite-(V)
mindat.org URL:
https://www.mindat.org/min-52886.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Rhabdoborite-(V)
Reference List:
Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2018) New minerals and nomenclature modifications approved in 2018. Mineralogical Magazine, 82 (2). 445-451 doi:10.1180/mgm.2018.71p.448
Pekov, Igor V., Zubkova, Natalia V., Koshlyakova, Natalia N., Belakovskiy, Dmitry I., Agakhanov, Atali A., Vigasina, Marina F., Britvin, Sergey N., Sidorov, Evgeny G., Pushcharovsky, Dmitry Yu. (2020) Rhabdoborite-(V), rhabdoborite-(Mo) and rhabdoborite-(W): a new group of borate minerals with the general formula Mg12M1 1/3[(BO3)6–x(PO4)xF2–x] (M = V5+, Mo6+ or W6+ and x < 1) Physics and Chemistry of Minerals, 47 (10) doi:10.1007/s00269-020-01105-7
Pekov, Igor V., Koshlyakova, Natalia N., Zubkova, Natalia V., Krzątała, Arkadiusz, Belakovskiy, Dmitry I., Galuskina, Irina O., Galuskin, Evgeny V., Britvin, Sergey N., Sidorov, Evgeny G., Vapnik, Yevgeny, Pushcharovsky, Dmitry Yu (2022) Pliniusite, Ca5(VO4)3F, a new apatite-group mineral and the novel natural ternary solid-solution system pliniusite–svabite–fluorapatite. American Mineralogist, 107 (8) 1626-1634 doi:10.2138/am-2022-8100
Localities for Rhabdoborite-(V)
Showing 1 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.
Russia (TL) | |
| Mineralogical Magazine: 82: 445-451. +1 other reference |
Quick NavTopAbout Rhabdoborite-(V)Unique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia