Britholite-(Y) (original) (raw)

A valid IMA mineral species - grandfathered

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About Britholite-(Y)Hide

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Colour:

Reddish-brown, black

Lustre:

Adamantine, Resinous, Dull

Name:

First described as abukumalite by Hata (1938) from the Suishoyama pegmatite, Fukushima Prefecture, Japan. Later it was renamed as britholite-(Y) as part of the changes in nomenclature for rare-earth minerals (Levinson 1966). It is named for its relation to britholite-(Ce) and the suffix "-(Y)" due to the dominance of yttrium in the composition.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:776:2

970d464d-1b07-496d-90bb-6df34a3fee99

IMA Classification of Britholite-(Y)Hide

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Approved, 'Grandfathered' (first described prior to 1959)

IMA status notes:

Renamed by the IMA

IMA Formula:

(Y,Ca)5(SiO4)3(OH)

Classification of Britholite-(Y)Hide

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9.AH.25

9 : SILICATES (Germanates)
A : Nesosilicates
H : Nesosilicates with CO3, SO4, PO4, etc.

52.4.9.2

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
4 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination

17.6.16

17 : Silicates Containing other Anions
6 : Silicates with phosphate

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.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol Source Reference
Bri-Y IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Bri The Canadian Mineralogist (2019) The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of Britholite-(Y)Hide

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Adamantine, Resinous, Dull

Transparency:

Transparent, Translucent

Colour:

Reddish-brown, black

Comment:

Yellowish-brown in thin sections.

Cleavage:

Imperfect/Fair
Imperfect on {0001}, {1010}.

Fracture:

Irregular/Uneven, Splintery

Density:

4.35 g/cm3 (Measured) 4.44 g/cm3 (Calculated)

Optical Data of Britholite-(Y)Hide

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RI values:

_n_ω = 1.730 - 1.752 _n_ε = 1.728 - 1.750

δ = 0.002

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Optical Extinction:

Parallel to cleavage.

Chemistry of Britholite-(Y)Hide

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Mindat Formula:

(Y,Ca)5(SiO4)3OH

Crystallography of Britholite-(Y)Hide

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Class (H-M):

6/m - Dipyramidal

Cell Parameters:

a = 9.43 Å, c = 6.81 Å

Unit Cell V:

524.45 ų (Calculated from Unit Cell)

Crystal StructureHide

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ID Species Reference Link Year Locality Pressure (GPa) Temp (K)
0011044 Britholite-(Y) Noe D C, Hughes J M, Mariano A N, Drexler J W, Kato A (1993) The crystal structure of monoclinic britholite-(Ce) and britholite-(Y) Zeitschrift fur Kristallographie 206 233-246 1993 Suishoyama, Japan 0 293
0011045 Britholite-(Y) Noe D C, Hughes J M, Mariano A N, Drexler J W, Kato A (1993) The crystal structure of monoclinic britholite-(Ce) and britholite-(Y) Zeitschrift fur Kristallographie 206 233-246 1993 Suishoyama, Japan 0 293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
2.813 Å (100)
2.753 Å (90)
2.727 Å (80)
3.13 Å (50)
3.09 Å (50)
3.39 Å (30)
1.885 Å (30)

Comments:

Suishoyama pegmatite, Japan.

Geological EnvironmentHide

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Type Occurrence of Britholite-(Y)Hide

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General Appearance of Type Material:

Massive, measuring about 1-2 cm in diameter. Rarely as short prismatic crystals to 3 cm. The outer part of the mineral is always altered into earthy substance of yellowish white or yellowish brown color.

Place of Conservation of Type Material:

Type material destroyed in WWII.

Geological Setting of Type Material:

Associated Minerals at Type Locality:

Synonyms of Britholite-(Y)Hide

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Other Language Names for Britholite-(Y)Hide

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Relationship of Britholite-(Y) to other SpeciesHide

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Other Members of this group:

Britholite-(Ce) (Ce,Ca)5(SiO4)3OH Hex. 6/m : _P_63/m
Britholite-(La) Ca2(La,Ce,Ca)3(SiO4,PO4)3(OH,F)
Calciobritholite (Ca,Y)5(SiO4,PO4)3(OH)
Fluorbritholite-(Ce) (Ce,Ca)5(SiO4)3F Hex. 6/m : _P_63/m
Fluorbritholite-(Nd) Ca2Nd3(SiO4)3F Hex. 6/m : _P_63/m
Fluorbritholite-(Y) (Y,Ca)5(SiO4)3F Hex. 6/m : _P_63/m
Fluorcalciobritholite (Ca,REE)5(SiO4,PO4)3F Hex. 6/m : _P_63/m
Tritomite-(Ce) Ce5(SiO4,BO4)3(OH,O)
Tritomite-(Y) Y5(SiO4,BO4)3(O,OH,F)

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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9.AH. Fluorbritholite-(Nd) Ca2Nd3(SiO4)3F Hex. 6/m : _P_63/m
9.AH.05 Iimoriite-(Y) Y2[SiO4][CO3] Tric. 1 : _P_1
9.AH.10 Tundrite-(Ce) Na2Ce2Ti(SiO4)(CO3)2O2 Tric. 1 : _P_1
9.AH.10 Tundrite-(Nd) Na2(Nd,Ce)2Ti(SiO4)(CO3)2O2
9.AH.15 Spurrite Ca5(SiO4)2(CO3) Mon. 2/m : _P_21/b
9.AH.15 Galuskinite Ca7(SiO4)3(CO3) Mon. 2/m : _P_21/b
9.AH.20 Ternesite Ca5(SiO4)2(SO4) Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a
9.AH.20 Silicocarnotite Ca5[(SiO4)(PO4)](PO4) Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a
9.AH.25 Britholite-(Ce) (Ce,Ca)5(SiO4)3OH Hex. 6/m : _P_63/m
9.AH.25 Chlorellestadite Ca5(SiO4)1.5(SO4)1.5Cl Hex. 6/m : _P_63/m
9.AH.25 Fluorbritholite-(Ce) (Ce,Ca)5(SiO4)3F Hex. 6/m : _P_63/m
9.AH.25 Fluorellestadite Ca5(SiO4)1.5(SO4)1.5F Hex. 6/m : _P_63/m
9.AH.25 Hydroxylellestadite Ca5(SiO4)1.5(SO4)1.5(OH) Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m c m
9.AH.25 Mattheddleite Pb5(SiO4)1.5(SO4)1.5(Cl,OH) Hex. 6/m : _P_63/m
9.AH.25 Tritomite-(Ce) Ce5(SiO4,BO4)3(OH,O)
9.AH.25 Tritomite-(Y) Y5(SiO4,BO4)3(O,OH,F)
9.AH.25 Fluorcalciobritholite (Ca,REE)5(SiO4,PO4)3F Hex. 6/m : _P_63/m
9.AH.25 Fluorbritholite-(Y) (Y,Ca)5(SiO4)3F Hex. 6/m : _P_63/m
9.AH.25 Britholite-(La) Ca2(La,Ce,Ca)3(SiO4,PO4)3(OH,F)
9.AH.25 Calciobritholite (Ca,Y)5(SiO4,PO4)3(OH)
9.AH.35 Nabimusaite KCa12(SiO4)4(SO4)2O2F Trig. 3_m_ _(_32/m ) : R_3_m
9.AH.35 Dargaite BaCa12(SiO4)4(SO4)2O3 Trig. 3_m_ : R_3_m
9.AH.40 Zadovite BaCa6[(SiO4)(PO4)](PO4)2F Trig. 3_m_ : R_3_m
9.AH.40 Gazeevite BaCa6(SiO4)2(SO4)2O Trig. 3_m_ _(_32/m ) : R_3_m
9.AH.40 Stracherite BaCa6(SiO4)2[(PO4)(CO3)]2F Trig. 3_m_ _(_32/m ) : R_3_m
9.AH.45 Flamite Ca8-x(Na,K)x(SiO4)4-x(PO4)x Orth. m _m_2
9.AH.50 Byzantievite Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5 Trig. 3 : _R_3
9.AH.55 Greenwoodite (Ba,V3+O)2V3+9(Fe3+,Fe2+)2Si2O22 Trig. 3_m_ _(_32/m ) : _P_3_m_1
9.AH.60 Kihlmanite-(Ce) Ce2TiO2(SiO4)(HCO3)2(H2O) Tric. 1 : _P_1
9.AH.65 Tsangpoite Ca5(PO4)2(SiO4) Hex.
9.AH.70 Enalite (Th,REE,Al) [(PO4),(SiO4),(OH)] Tet.

Other InformationHide

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Notes:

Readily dissolved in cold dilute mineral acids.

Magnetic property is weaker than allanite and greater than yttrialite and xenotime.

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

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References for Britholite-(Y)Hide

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Localities for Britholite-(Y)Hide

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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.

Canada
Québec Abitibi-Témiscamingue Témiscamingue RCM Les Lacs-du-Témiscamingue ⓘ Kipawa alkaline complex GSC database
Côte-Nord Sept-Rivières RCM ⓘ Kwyjibo deposit Louise Corriveau (Date Modified: 2008-12-08)
China
ⓘ Henan Chunliu Song (1988)
Finland
Pirkanmaa Valkeakoski ⓘ Pyörönmaa pegmatite Siivola (1975)
Southwest Finland Kimitoön (Kemiönsaari) Kimitoön Island ⓘ Lövböle Jyrki Autio Collection. Pavel M. ...
ⓘ Smörklinten Ilkka Mikkola collection
Laitila ⓘ Amazonite pegmatite Pavel M. Kartashov analytical data 2019
Japan (TL)
Fukushima Prefecture ⓘ Abukuma range (Abukuma massif) (TL) Hata (1938)
Date District Kawamata ⓘ Fusamata Nagashima et al. (1971)
Iizaka Village (Iisaka) ⓘ Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama) (TL) Sci. Pap. Inst. Phys. Chem. Res. +1 other reference
Gifu Prefecture Nakatsugawa City Hirukawa ⓘ Tawara (Tahara) ex-Okamoto collection (2015)
Mongolia
Khovd Province Myangad District Khaldzan Buragtag massif ⓘ Tsakhirin Khuduk Y-Zr-Nb deposit Pavel Kartashov analytical data (2012)
Norway
Agder Vennesla Øvrebø ⓘ Reiersdal Feldspar Quarries ? Griffin et al. (1979)
Nordland Hamarøy Drag Eivollen ⓘ Nedre Eivollen Husdal et al. (2017)
Lapplægeret ⓘ Øvre Lapplægeret Quarry Husdal (2008)
ⓘ Kråkmo Husdal (2008)
ⓘ Lagmannsvik Husdal (2008)
Narvik ⓘ Hundholmen Husdal (2008)
ⓘ Stetind pegmatite Husdal (2008)
Telemark Skien Kilebygda ⓘ Gislesjø Neumann (1985)
Portugal
Azores São Miguel ⓘ Água de Pau Volcano ? Lavarde et al. (2019)
Ribeira Grande ⓘ Ruins of Lombadas syenite xenolith occurrence Knut Edvard Larsen collection
Russia
Altai Krai Charyshsky District ⓘ Kumir Sc-REE occurrence ...
Khabarovsk Krai ⓘ Badzhalski ore District Alekseev et al. (2015)
Murmansk Oblast Belye Tundry Massif ⓘ Zirkonovoe pegmatite body (Zirkonovoye) Voloshin et al. (2005) +2 other references
Lovozersky District Keivy Mountains ⓘ Western Keivy Massif Pavel.M. Kartashov (n.d.)
ⓘ Serpovidnyi Ridge Lunts et al. (1972)
ⓘ Vyuntspakhk Mt Pavel.M. Kartashov (n.d.)
ⓘ West Keivy Block
ⓘ Platon Mountain Pavel M. Kartashov collection
ⓘ White Tundra pegmatite Zozulya et al. (2022)
ⓘ Yel’skie Lakes deposits Kalashnikov et al. (2016)
Slovakia
Trenčín Region Považská Bystrica District Stupné ⓘ Stupné quarry Uher et al. (Y) +1 other reference
South Africa
North West Bojanala Platinum District Municipality Moses Kotane Local Municipality Pilanesberg Alkaline Ring Complex ⓘ Pilanesberg Mountain ?
Sweden
Jönköping County Jönköping Gränna ⓘ Norra Kärr ? Adamson (1944) +1 other reference
UK
ⓘ Scotland Tindle (2008)
Highland Eilean á Chèo ⓘ Isle of Skye Smith et al. (2002) +2 other references
USA
Colorado Gunnison County White Earth Mining District (Powderhorn Mining District) ⓘ Iron Hill deposit Eckel et al. (1997)
ⓘ Wet Mountains Area Eckel et al. (1997)
Michigan Marquette County Republic ⓘ Black River pegmatite "Mines and Minerals of Michigan's Iron ...
Nevada Humboldt County Bottle Creek Mining District ⓘ Buff Peak prospect ? Castor et al. (2004)
Texas Llano County Kingsland Granite Company Quarry (Petrick Quarry) ⓘ Petrick pegmatite Arthur Smith et al. (2008)