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Rhabdophane-(Y)

A valid IMA mineral species

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Formula:

YPO₄ · H₂O

Colour:

Yellowish white to yellowish brown

Lustre:

Silky, Dull

Specific Gravity:

4.54 (Calculated)

Crystal System:

Hexagonal

Member of:

Rhabdophane Group

Name:

Named for its relationship to other rhabdophane group minerals and for its dominant yttirum rare-earth content.

Type Locality:

ⓘ Hinodematsu, Genkai-cho, Higashimatsuura district, Saga Prefecture, Japan

This page provides mineralogical data about Rhabdophane-(Y).

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Unique IdentifiersHide

Mindat ID:

42532

Long-form identifier:

mindat:1:1:42532:0

GUID
(UUID V4):

9f4b6398-0e16-4321-a1f8-abc7b00b2d71

IMA Classification of Rhabdophane-(Y)Hide

IMA status:

Approved

IMA Formula:

Y(PO₄) · H₂O

Approval year:

2011

First published:

2012

Type description reference:

TAKAI, Yasuhiro, UEHARA, Seiichiro (2012) Rhabdophane-(Y), YPO₄·H₂O, a new mineral in alkali olivine basalt from Hinodematsu, Genkai-cho, Saga Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 107 (2) 110-113 doi:10.2465/jmps.111020j

Classification of Rhabdophane-(Y)Hide

Strunz-mindat (2024):

8.CJ.25

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H₂O
J : With only large cations

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Symbol	Source	Reference
Rha-Y	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 Rhabdophane-(Y)Hide

Lustre:

Silky, Dull

Transparency:

Transparent

Colour:

Yellowish white to yellowish brown

Streak:

yellowish white

Density:

4.54 g/cm³ (Calculated)

Chemistry of Rhabdophane-(Y)Hide

Mindat Formula:

YPO₄ · H₂O

Elements listed:

H, O, P, Y - search for minerals with similar chemistry

Crystallography of Rhabdophane-(Y)Hide

Crystal System:

Hexagonal

Class (H-M):

6 2 2 - Trapezohedral

Space Group:

P6₂ 2 2

Setting:

P6₂ 2 2

Cell Parameters:

a = 6.959(2) Å, c = 6.384(2) Å

Ratio:

a:c = 1 : 0.917

Unit Cell V:

267.7 Å³

Morphology:

Short rod-like crystals, forms radial aggregates

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
6.026 Å	(76)
3.013 Å	(77)
4.385 Å	(47)
3.480 Å	(44)
2.821 Å	(100)
2.127 Å	(28)
1.854 Å	(26)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 3a: Earth’s earliest Hadean crust	>4.50
8 : Mafic igneous rocks

Type Occurrence of Rhabdophane-(Y)Hide

Type Locality:

ⓘ Hinodematsu, Genkai-cho, Higashimatsuura district, Saga Prefecture, Japan

General Appearance of Type Material:

short rod like crystals forming radial aggregates.

Place of Conservation of Type Material:

Kitakyshu Museum of Natural and Human History, Kitakyshu, Japan # KMNHM000002

Geological Setting of Type Material:

Occurs in the Higashimatsuura olivine basalt

Associated Minerals at Type Locality:

Magnetite	Ilmenite	Forsterite	Enstatite	Augite
Plagioclase

Reference:

Takai, Y., Uehara, S. (2012) Rhabdophane-(Y), YPO4·H2O, a new mineral in alkali olivine basalt from Hinodematsu, Genkai-cho, Saga Prefecture, Japan. Journal of Mineralogical and Petrological Sciences: 107: 110-113.

Synonyms of Rhabdophane-(Y)Hide

IMA2011-031

Rhabdophane (in part)

Other Language Names for Rhabdophane-(Y)Hide

German:Rhabdophan-(Y)

Relationship of Rhabdophane-(Y) to other SpeciesHide

Member of:

Rhabdophane Group

Other Members of this group:

Brockite	(Ca,Th,Ce)PO₄ · H₂O	Hex. 6 2 2 : P6₂ 2 2
Grayite	(Th,Pb,Ca)(PO₄) · H₂O	Hex. 6 2 2 : P6₂ 2 2
Rhabdophane-(Ce)	Ce(PO₄) · 0.6H₂O	Trig. 3 2 : P3₁ 2 1
Rhabdophane-(La)	La(PO₄) · H₂O	Hex. 6 2 2 : P6₂ 2 2
Rhabdophane-(Nd)	Nd(PO₄) · H₂O	Hex. 6 2 2 : P6₂ 2 2
Tristramite	(Ca,U,Fe)(PO₄,SO₄) · 2H₂O	Hex. 6 2 2 : P6₂ 2 2
UM1993-07-PO:CaCeHLa	(Ca,Ce,La,REE)PO₄ · nH₂O	Hex. 6 2 2 : P6₂ 2 2

Related Minerals - Strunz-mindat Grouping Hide

8.CJ.	Sainfeldite	Ca₅(AsO₄)₂(AsO₃OH)₂ · 4H₂O	Mon. 2/m : B2/b
8.CJ.	Caesiumpharmacosiderite	CsFe₄[(AsO₄)₃(OH)₄] · 4H₂O	Iso. 4 3m : P4 3m
8.CJ.	Jeankempite	Ca₅(AsO₄)₂(HAsO₄)₂ · 7H₂O	Tric. 1 : P1
8.CJ.	Airdite	Sr(V⁴⁺O)₂(PO₄)₂ · 4H₂O	Mon. m : Bb
8.CJ.	Dobšináite	Ca₂Ca(AsO₄)₂ · 2H₂O	Mon. 2/m : P2₁/b
8.CJ.05	Stercorite	(NH₄)Na(PO₃OH) · 4H₂O	Tric. 1 : P1
8.CJ.10	Mundrabillaite	(NH₄)₂Ca(PO₃OH)₂ · H₂O	Mon. m : Pm
8.CJ.10	Swaknoite	(NH₄)₂Ca(PO₃OH)₂ · H₂O	Orth.
8.CJ.15	Nabaphite	NaBaPO₄ · 9H₂O	Iso. 2 3 : P2₁ 3
8.CJ.15	Nastrophite	Na(Sr,Ba)PO₄ · 9H₂O	Iso. 2 3 : P2₁ 3
8.CJ.20	Haidingerite	CaHAsO₄ · H₂O	Orth. mmm (2/m 2/m 2/m) : Pbcn
8.CJ.25	Vladimirite	Ca₄(AsO₄)₂(AsO₃OH) · 4H₂O	Mon. 2/m : P2₁/b
8.CJ.27	Churchite-(Dy)	(Dy,Sm,Gd,Nd)PO₄ · 2H₂O	Mon.
8.CJ.30	Ferrarisite	Ca₅(AsO₄)₂(HAsO₄)₂ · 9H₂O	Tric. 1 : P1
8.CJ.35	Machatschkiite	(Ca,Na)₆(AsO₄)(HAsO₄)₃(PO₄,SO₄) · 15H₂O	Trig. 3m : R3c
8.CJ.35	Fulbrightite	Ca(VO)₂(AsO₄)₂ · 4H₂O	Tric. 1 : P1
8.CJ.40	Phaunouxite	Ca₃(AsO₄)₂ · 11H₂O	Tric.
8.CJ.40	Rauenthalite	Ca₃(AsO₄)₂ · 10H₂O	Tric. 1 : P1
8.CJ.45	Brockite	(Ca,Th,Ce)PO₄ · H₂O	Hex. 6 2 2 : P6₂ 2 2
8.CJ.45	Grayite	(Th,Pb,Ca)(PO₄) · H₂O	Hex. 6 2 2 : P6₂ 2 2
8.CJ.45	Rhabdophane-(Ce)	Ce(PO₄) · 0.6H₂O	Trig. 3 2 : P3₁ 2 1
8.CJ.45	Rhabdophane-(La)	La(PO₄) · H₂O	Hex. 6 2 2 : P6₂ 2 2
8.CJ.45	Rhabdophane-(Nd)	Nd(PO₄) · H₂O	Hex. 6 2 2 : P6₂ 2 2
8.CJ.45	Tristramite	(Ca,U,Fe)(PO₄,SO₄) · 2H₂O	Hex. 6 2 2 : P6₂ 2 2
8.CJ.45	Smirnovskite	(Th,Ca)PO₄ · nH₂O	Hex. 6 2 2 : P6₂ 2 2
8.CJ.45	Štěpite	U(AsO₃OH)₂ · 4H₂O	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/acd
8.CJ.47	Vysokýite	U⁴⁺[AsO₂(OH)₂]₄ · 4H₂O	Tric. 1 : P1
8.CJ.50	Ardealite	Ca₂(PO₃OH)(SO₄) · 4H₂O	Mon. m : Bb
8.CJ.50	Brushite	Ca(PO₃OH) · 2H₂O	Mon. m : Bb
8.CJ.50	Churchite-(Y)	Y(PO₄) · 2H₂O	Mon. 2/m : B2/b
8.CJ.50	Pharmacolite	Ca(HAsO₄) · 2H₂O	Mon. m
8.CJ.50	Churchite-(Nd)	Nd(PO₄) · 2H₂O	Mon.
8.CJ.55	Mcnearite	NaCa₅(AsO₄)(HAsO₄)₄ · 4H₂O	Tric.
8.CJ.60	Dorfmanite	Na₂(PO₃OH) · 2H₂O	Orth. mmm (2/m 2/m 2/m) : Pbca
8.CJ.65	Sincosite	Ca(VO)₂(PO₄)₂ · 5H₂O	Tet. 4/mmm (4/m 2/m 2/m) : P4₂/nnm
8.CJ.65	Bariosincosite	Ba(VO)₂(PO₄)₂ · 4H₂O	Tet.
8.CJ.70	Catalanoite	Na₂(PO₃OH) · 8H₂O	Orth. mmm (2/m 2/m 2/m) : Ibca
8.CJ.75	Guérinite	Ca₆(HAsO₄)₃(AsO₄)₂ · 10.5H₂O	Mon. 2/m : P2₁/b
8.CJ.85	Ningyoite	(U,Ca,Ce)₂(PO₄)₂ · 1-2H₂O	Orth.

Other InformationHide

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 Rhabdophane-(Y)Hide

mindat.org URL:

https://www.mindat.org/min-42532.html
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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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References for Rhabdophane-(Y)Hide

Reference List:

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2011) New minerals and nomenclature modifications approved in 2011, CNMNC Newsletter No. 10. Mineralogical Magazine, 75 (5) 2549-2561 doi:10.1180/minmag.2011.075.5.2549

(2023) Rhabdophane-(Y) Handbook of Mineralogy. Mineralogical Society of America

Localities for Rhabdophane-(Y)Hide

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

- 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.


Japan (TL)
Saga Prefecture Higashimatsuura district Genkai-cho ⓘ Hinodematsu (TL)	Williams et al. (2011) +1 other reference
ⓘ Higashimatsuura basalt	Takai et al. (2010)