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Britholite-(Y)

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Big Photo

West Keivy Block, Western Keivy Massif, Kola peninsula, Murmanskaja Oblast', Northern Region, Russia
© Pavel M. Kartashov

Show Britholite-(Y) Photos (8)



Formula:
Ca
 
2
(Y,Ca)
 
3
(SiO
 
4
,PO
 
4
)
 
3
(OH,F)
System:HexagonalColour:Reddish-brown, black.
Lustre:AdamantineHardness:5
Member of:Britholite Group


Britholite Group

Classification of Britholite-(Y)

IMA status:Approved
Strunz 8th edition ID:8/B.27-50
Nickel-Strunz 10th (pending) edition ID:9.AH.25

9 : SILICATES (Germanates)
A : Nesosilicates
H : Nesosilicates with CO3, SO4, PO4, etc.
Dana 8th edition ID: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
Hey's CIM Ref.:17.6.16

17 : Silicates Containing other Anions
6 : Silicates with phosphate
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Type Occurrence of Britholite-(Y)

Co-type Localities:Abukuma range (Abukuma massif), Fukushima prefecture, Tohoku region, Honshu Island, Japan
Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka (Iisaka) Village, Kawamata, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan

Physical Properties of Britholite-(Y)

Lustre:Adamantine
Colour:Reddish-brown, black.
Streak:Pale brown
Hardness (Mohs):5

Crystallography of Britholite-(Y)

Crystal System:Hexagonal

Optical Data of Britholite-(Y)

Type:Uniaxial (-)
RI values: nω = 1.730 - 1.752 nε = 1.728 - 1.750
Maximum Birefringence:δ = 0.002

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High

Chemical Properties of Britholite-(Y)

Formula:
Ca
 
2
(Y,Ca)
 
3
(SiO
 
4
,PO
 
4
)
 
3
(OH,F)
Essential elements:Ca, H, O, Si, Y
All elements listed in formula:Ca, F, H, O, P, Si, Y

Relationship of Britholite-(Y) to other Species

Member of:Britholite Group
Other Members of Group:

- +
Britholite-(Ce)
Ca
 
2
(Ce,Ca)
 
3
(SiO
 
4
,PO
 
4
)
 
3
(OH,F)
Fluorbritholite-(Ce)
Ca
 
2
(Ce,Ca)
 
3
(SiO
 
4
,PO
 
4
)
 
3
(F,OH)
Fluorbritholite-(Y)
Ca
 
2
(Y,Ca,Ln)
 
3
(SiO
 
4
,PO
 
4
)
 
3
(F,OH)
Fluorcalciobritholite
(Ca,Ce)
 
5
 (SiO
 
4
,PO
 
4
)
 
3
F
Related Minerals - Nickel-Strunz Grouping):

- +
9.AH.05Iimoriite-(Y)
Y
 
2
[SiO
 
4
][CO
 
3
]
9.AH.10Tundrite-(Ce)
Na
 
2
Ce
 
2
Ti(SiO
 
4
)(CO
 
3
)
 
2
O
 
2
9.AH.10Tundrite-(Nd)
Na
 
3
(Nd,La)
 
4
(Ti,Nb)
 
2
(SiO
 
4
)
 
2
(CO
 
3
)
 
3
O
 
4
(OH) · 2H
 
2
O
9.AH.15Spurrite
Ca
 
5
(SiO
 
4
)
 
2
(CO
 
3
)
9.AH.20Ternesite
Ca
 
5
(SiO
 
4
)
 
2
(SO
 
4
)
9.AH.25Britholite-(Ce)
Ca
 
2
(Ce,Ca)
 
3
(SiO
 
4
,PO
 
4
)
 
3
(OH,F)
9.AH.25Ellestadite-(Cl)
Ca
 
10
(SiO
 
4
)
 
3
(SO
 
4
)
 
3
Cl
 
2
9.AH.25Fluorbritholite-(Ce)
Ca
 
2
(Ce,Ca)
 
3
(SiO
 
4
,PO
 
4
)
 
3
(F,OH)
9.AH.25Fluorellestadite
Ca
 
5
(SiO
 
4
)
 
1.5
(SO
 
4
)
 
1.5
F
9.AH.25Hydroxylellestadite
Ca
 
5
(SiO
 
4
)
 
1.5
(SO
 
4
)
 
1.5
(OH)
9.AH.25Mattheddleite
Pb
 
5
(SiO
 
4
)
 
1.5
(SO
 
4
)
 
1.5
(Cl,OH)
9.AH.25Tritomite-(Ce)
(Ce,La,Y,Th)
 
5
(Si,B)
 
3
(O,OH,F)
 
13
9.AH.25Tritomite-(Y)
(Y,Ca,La,Fe)
 
5
(Si,B,Al)
 
3
(O,OH,F)
 
13
9.AH.25Fluorcalciobritholite
(Ca,Ce)
 
5
 (SiO
 
4
,PO
 
4
)
 
3
F
9.AH.25Fluorbritholite-(Y)
Ca
 
2
(Y,Ca,Ln)
 
3
(SiO
 
4
,PO
 
4
)
 
3
(F,OH)
Related Minerals - Hey's Index Grouping:

- +
17.6.1Nagelschmidtite
Ca
 
7
(SiO
 
4
)
 
2
(PO
 
4
)
 
2
17.6.2Perhamite
(Ca,Sr)
 
3
Al
 
7
(PO
 
4
)
 
4
(SiO
 
4
)
 
3
(OH)
 
3
 · 16.5H
 
2
O
17.6.3Viséite
17.6.4Phosinaite
17.6.5Clinophosinaite
Na
 
12
(Ca,Sr)
 
4
(Si
 
4
O
 
12
)(PO
 
4
)
 
4
17.6.6Karnasurtite-(Ce)
(Ce,La,Th)(Ti,Nb)(Al,Fe)(Si
 
2
O
 
7
)(OH)
 
4
 · 3H
 
2
O
17.6.7Lomonosovite
Na
 
5
Ti
 
2
(Si
 
2
O
 
7
)(PO
 
4
)O
 
2
17.6.8Bornemanite
Na
 
6
BaTi
 
2
Nb(Si
 
2
O
 
7
)
 
2
(PO
 
4
)O
 
2
(OH)F
17.6.9Sobolevite
Na
 
13
Ca
 
2
Mn
 
2
Ti
 
3
(Si
 
2
O
 
7
)
 
2
(PO
 
4
)
 
4
O
 
3
F
 
3
17.6.10Laplandite-(Ce)
Na
 
4
CeTiPO
 
4
Si
 
7
O
 
18
 · 5H
 
2
O
17.6.11 Vunonnemite
Na
 
5
TiNb
 
3
Si
 
6
O
 
25
F
 
2
 · 2Na
 
3
PO
 
4
17.6.12Saryarkite-(Y)
Ca(Y,Th)Al
 
5
(SiO
 
4
)
 
2
(PO
 
4
,SO
 
4
)
 
2
(OH)
 
7
 · 6H
 
2
O
17.6.13Steenstrupine-(Ce)
Na
 
14
Mn
2+
2
(Fe
3+
 
,Mn
3+
 
)
 
2
Ce
 
6
(Zr,Th)(Si
 
6
O
 
18
)
 
2
(PO
 
4
)
 
6
(HPO
 
4
)(OH)
 
2
 · 2H
 
2
O
17.6.14Waylandite
BiAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
17.6.15Britholite-(Ce)
Ca
 
2
(Ce,Ca)
 
3
(SiO
 
4
,PO
 
4
)
 
3
(OH,F)
17.6.17Eylettersite
(Th,Pb)Al
 
3
(PO
 
4
,SiO
 
4
)
 
2
(OH)
 
6

Other Names for Britholite-(Y)

Synonyms:
AbukumaliteYttrobritholite
Other Languages:
German:Abukumalit
Abukumalith
Yttrobritholit
Russian:Бритолит-(Y)
Spanish:Abukumalita
Yttrobritholita

Other Information

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

References for Britholite-(Y)

Reference List:

- +
Hata, S. (1938): Abukumalite, a new mineral from pegmatites of Isaka, Fukushima prefecture. Sci. Pap. Inst. Phys. Chem. Res. Tokyo, 34, 1018-1023. [as abukumalite]

Omori, K. and Hasegawa, S. (1953): Yttrialite and abukumalite from pegmatite of Suishoyama, Iisaka village, Fukushima, Japan. J. Japan. Assoc. Mineral., Petrol. Econ. Geol., 37, 21-29. [as abukumalite]

Zeitschrift für Kristallographie: 206: 233-246.

Oberti, R., Ottolini, L., Della Ventura, G., Parodi, G.C. (2001): On the symmetry and crystal chemistry of britholite: New structural and microanalytical data. American Mineralogist, 86, 1066-1075.

Internet Links for Britholite-(Y)

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    • Localities for Britholite-(Y)

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Canada
     
    • Québec
      • Côte-Nord
        • Sept-Rivières RCM
    		Louise Corriveau (Date Modified: 2008-12-08) Mineral Deposits of Canada District Metallogeny The Manitou district a Canadian iron oxide copper-gold deposit setting. Geological Survey of Canada
    China
     
    Chunliu Song, Bingkun Qiao and Jianhong Zhang (1988): Acta Mineralogica Sinica 8(1), 19-24
    Finland
     
    • Western Finland Province
      • Kangasala
    		Siivola 1975 Bulletin of the Geological Society of Finland 49
    Japan
     
    • Honshu Island
      • Tohoku region
        • Fukushima prefecture
    		Hata, S. (1938) Abukumalite [britholite-(Y)], a new mineral from pegmatites of Iisaka, Fukushima prefecture. Sci. Pap. Inst. Phys. Chem. Res., Tokyo, 34, 1018-1023.
          • Kawamata
            • Iizaka (Iisaka) Village
    		Sci. Pap. Inst. Phys. Chem. Res., Tokyo, 34, 1018-1023.
    Mongolia
     
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
        • Khaldzan Buragtag massif
    		Econ Geol (1995) 90:530-547
    Norway
     
    • Nordland
      • Hamarøy
    		Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum Skrift 38: 5-28
    Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum, skrift 38, 5-28.
      • Tysfjord
        • Drag
          • Lapplegret
    		Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum Skrift 38: 5-28
    Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum Skrift 38: 5-28
    Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum, skrift 38, 5-28.
    • Telemark
      • Skien
    		Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68(p. 124)
    • Vest-Agder
      • Vennesla
    		Griffin, W.L., Nilssen, B. & Jensen, B.B. (1979): Britholite-(Y) and its alteration: Reiarsdal, Vest-Agder, south Norway. Norsk Geologisk Tidsskrift 59: 265-271
    Portugal
     
    • Azores District
      • San Miguel Island
    		SEM - EDS by Dott. Fabio Bellatreccia - Dip.to Scienze Geologiche - Università Roma Tre
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Keivy Mts
    		Pavel M. Kartashov data
          • Western Keivy Massif
    		Pavel M. Kartashov data
    No reference listed
    Slovakia
     
    • Trenčín Region
      • Považská Bystrica Co.
    		Uher, P., Ondrejka, M.: Britolit-(Y): Neskoromagmatický akcesorický minerál Y-REE z granitu A-typu v Stupnom při Považskej Bystrici, Pieninské bradlové pásmo (severozápadné Slovensko). Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2008, vol. 16, 2, 224-229.
    South Africa
     
    • Gauteng Province
    Sweden
     
    • Småland
      • Jönköping
        • Gränna
    		Adamson, O. J. (1944): The Petrology of the Norra Kärr District. An occurrence of alkaline Rocks in Southern Sweden. Geologiska Föreningen i Stockholm Förhandlingar, 66: 112-255; Thulin, H. (1996): Norra Kärr. Litiofilen 13: 17-51
    UK
     
    Tindle, A.G. (2008) Minerals of Britian and Ireland
      • North West Highlands (Inverness-shire)
    		Jour. Conf. Abstracts 5: 939 (2000)
    USA
     
    • Colorado
      • Fremont Co.
    		Minerals of Colorado (1997) Eckels, E. B.
      • Gunnison Co.
        • White Earth District (Powderhorn District)
    		"Minerals of Colorado, updated & revised", p. 17, by Eckel, Edwin B., 1997
    • Michigan
      • Marquette Co.
        • Republic
    		"Mines and Minerals of Michigan's Iron Country," Ramon S. Demark. Rocks & Minerals, March 2000.
    • Nevada
      • Humboldt Co.
        • Bottle Creek District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    • Texas
      • Llano Co.
        • Kingsland Granite Company quarry (Petrick quarry)
    		Arthur Smith, Frank Roberts, Denise Bicknell (2008) Mineral News, 24, #1, 6-7.
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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