Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (10 online) Mindat Auctions

Thalénite-(Y)

Big Photo

Hundholmen, Tysfjord, Nordland, Norway
© OT. Ljostad

Show Thalénite-(Y) Photos (17)
Formula:
Y
 
3
Si
 
3
O
 
10
(OH)
System:MonoclinicColour:Flesh-pink, brown or ...
Hardness:6
Name:Named after Tobia Robert Thalén (1827-1905), Swedish physicist and astronomer.


This mineral is found in granite pegmatites, associated with Fergusonite, Magnetite, etc.
The OH-analog of fluorthalenite-(Y).

Classification of Thalénite-(Y)

IMA status:Approved
Strunz 8th edition ID:8/C.33-10
Nickel-Strunz 10th (pending) edition ID:9.BJ.20

9 : SILICATES (Germanates)
B : Sorosilicates
J : Sorosilicates with Si3O10, Si4O11, etc. anions; cations in octahedral [6] and greater coordination
Dana 8th edition ID:55.2.1b.2

55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
2 : Si2O7 Groups, Generally with no Additional Anions with cations in [6] coordination
Hey's CIM Ref.:14.8.1

14 : Silicates not Containing Aluminum
8 : Silicates of Group III metals other than Al
mindat.org URL:http://www.mindat.org/min-3931.html
Please feel free to link to this page.

Type Occurrence of Thalénite-(Y)

Type Locality:Österby, Gustavs, Säter, Dalarna, Sweden

Physical Properties of Thalénite-(Y)

Lustre:Greasy
Diaphaneity (Transparency):Translucent
Colour:Flesh-pink, brown or greenish.
Streak:White
Hardness (Mohs):6
Tenacity:Brittle

Crystallography of Thalénite-(Y)

Crystal System:Monoclinic

Optical Data of Thalénite-(Y)

Type:Biaxial (-)
RI values: nα = 1.731 nβ = 1.738 nγ = 1.744
2V:Measured: 68° , Calculated: 84°
Maximum Birefringence:δ = 0.013

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

Chemical Properties of Thalénite-(Y)

Formula:
Y
 
3
Si
 
3
O
 
10
(OH)
Essential elements:H, O, Si, Y
All elements listed in formula:H, O, Si, Y

Relationship of Thalénite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):
9.BJ.05Orientite
Ca
 
2
MnMn
 
2
Si
 
3
O
 
10
(OH)
 
4
9.BJ.10Rosenhahnite
HCa
 
3
[Si
 
3
O
 
9
(OH)]
9.BJ.15Trabzonite
Ca
 
4
Si
 
3
O
 
10
·2H
 
2
O
9.BJ.20Fluorthalénite-(Y)
Y
 
3
Si
 
3
O
 
10
F
9.BJ.25Tiragalloite
Mn
 
4
AsSi
 
3
O
 
12
(OH)
9.BJ.30Medaite
(Mn,Ca)
 
6
(V,As)Si
 
5
O
 
18
OH
9.BJ.35Ruizite
Ca
 
2
Mn
3+
2
[(OH)
 
2
|H
 
2
Si
 
4
O
 
13
] · 2H
 
2
O
9.BJ.40Ardennite-(As)
Mn
2+
4
[(Al,Mg)
 
6
][(OH)
 
6
|(AsO
 
4
,VO
 
4
)|(SiO
 
4
)
 
2
|Si
 
3
O
 
10
]
9.BJ.40Ardennite-(V)
Mn
2+
4
[Al
 
4
(Mg,Al,Fe
3+
 
,Mn
3+
 
)
 
2
][(OH)
 
6
|(VO
 
4
,SiO
 
4
)|(SiO
 
4
)
 
2
|Si
 
3
O
 
10
]
9.BJ.45Kilchoanite
Ca
 
3
Si
 
2
O
 
7
9.BJ.50Kornerupine
Mg
 
3
Al
 
6
(Si,Al,B)
 
5
O
 
21
(OH)
9.BJ.50Prismatine
([ ],Fe,Mg)(Mg,Al,Fe)
 
5
Al
 
4
Si
 
2
(Si,Al)
 
2
(B,Si,Al)(O,OH,F)
 
22
9.BJ.55Zunyite
Al
 
13
Si
 
5
O
 
20
(OH,F)
 
18
Cl
9.BJ.60Hubeite
Ca
 
2
Mn
2+
 
Fe
3+
 
[HSi
 
4
O
 
13
] · 2H
 
2
O
9.BJ.65Cassagnaite
(Ca,Mn
2+
 
)
 
4
(Fe
3+
 
,Mn
3+
 
,Al)
 
4
(V
3+
 
,Mg,Al)
 
2
[(O,OH)
 
4
|(OH)
 
4
|(SiO
 
4
)
 
2
|Si
 
3
O
 
10
]
Related Minerals - Hey's Index Grouping:
14.8.2Keiviite-(Y)
(Y,Yb)
 
2
[Si
 
2
O
 
7
]
14.8.3Keiviite-(Yb)
(Yb,Y)
 
2
[Si
 
2
O
 
7
]
14.8.4Tombarthite-(Y)
Y
 
4
[HSiO
 
4
]
 
3
14.8.5Thortveitite
(Sc,Y)
 
2
[Si
 
2
O
 
7
]
14.8.6Sazhinite-(Ce)
Na
 
3
Ce[Si
 
6
O
 
15
] · 6H
 
2
O
14.8.7Monteregianite-(Y)
(Na,K)
 
6
(Y,Ca)
 
2
Si
 
16
O
 
38
·10H
 
2
O
14.8.8Iraqite-(La)
K(Ca,Na)
 
2
(La,Ce,Th)[(Si,Al)
 
8
O
 
20
]
14.8.9Ashcroftine-(Y)
K
 
5
Na
 
5
(Y,Ca)
 
12
Si
 
28
O
 
70
(OH)
 
2
(CO
 
3
)
 
8
·8H
 
2
O
14.8.10Nordite-(La)
(La,Ce)(Sr,Ca)Na
 
2
(Na,Mn)(Zn,Mg)Si
 
6
O
 
17
14.8.11Nordite-(Ce)
(Ce,La)(Sr,Ca)Na
 
2
(Na,Mn)(Zn,Mg)Si
 
6
O
 
17
14.8.12Jervisite
(Na,Ca,Fe
2+
 
)(Sc,Mg,Fe
2+
 
)[Si
 
2
O
 
6
]
14.8.13Cerite-(Ce)
(Ce,Ca)
 
9
(Mg,Fe)Si
 
7
(O,OH,F)
 
28
14.8.14Cascandite
Ca(Sc,Fe
3+
 
)[HSi
 
3
O
 
9
]

Other Names for Thalénite-(Y)

German names:
Thalenit-(Y)
Russian names:
Таленит-(Y)

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 Thalénite-(Y)

Reference List:Geol. Fören. Stockhol Förh. (1898), 20, 308-312.

Kornev, A. N., Batalieva, N. G., Maksimov, B. A., Ilyukhin, V. V. & Belov, N. V. (1972). Crystal structure of thalenite Y3[Si3O10](OH). Doklady Akademii Nauk SSSR 202, 1324-1327. (In Russian.)

American Mineralogist (1986): 71: 188.

Yakubovich, O. V.; Voloshin, A. V.; Pakhomovskii, Ya. A.; Simonov, M. A. (1988): Refined crystal structure of thalenite. Kristallografiya 33, 605-608. (In Russian.) [English version: Soviet Physics – Crystallography 33, 356-358; note: this is actually the structure of fluorthalenite]

Internet Links for Thalénite-(Y)

Search Engines:
  • Look for Thalénite-(Y) on Google
  • Look for Thalénite-(Y) images on Google
    • External Links:
  • Look for Thalénite-(Y) on Webmineral
  • Look for Thalénite-(Y) on Athena Mineralogy
  • Look for Thalénite-(Y) on Wikipedia
  • Look for Thalénite-(Y) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Thalénite-(Y) in the Natural History Museum (London) online catalogue
  • Thalenite-(Y) details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Wilensky Fine Minerals
  • Lapis Mineral Magazin
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy Fine Minerals from mineralsweb.com
  • Search for Thalénite-(Y) at Thames Valley Minerals
  • Fine Minerals from Dan Weinrich Minerals
  • e-Rocks - Mineral Auctions and Sales
  • Top quality minerals from Kristalle of California
  • Buy from David K Joyce minerals
  • rare and unusual minerals mainly crystallized
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • The Arkenstone - Fine Minerals
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Localities for Thalénite-(Y)

    Hide Locality List
    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.
    These maps work faster with Firefox!
    (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.
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Fukushima Prefecture
          • Kawamata
    		No reference listed
    Am Min 69:196-199
    Norway
     
    • Aust-Agder
    		[http://home.sol.no/~rwerner/articles/evje-pegmatites.html]
    No reference listed
      • Iveland
    • Nordland
      • Hamarøy
    		 Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum, skrift 38, 5-28.
    No reference listed
    Kristiansen, Roy (1993): Thalenitt fra Hundholmen, Tysfjord. STEIN 20 (2), 121-123
    Collection of Tomas Husdal
    • Telemark
      • Drangedal
        • Tørdal
    		Kristiansen, R. (1998): Høydalen Litium-pegmatitt-Tørdal i Telemark. STEIN 25 (4), 21-30
    • Vest-Agder
      • Vennesla
    		Griffin et al. (1979); Neumann (1985, p. 125).
    Russia
     
    • Eastern-Siberian Region
      • Tuva Republic
    		no reference
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Western Keivy Massif
    A.V. Voloshin, Ya.A. Pakhomovskii Minerals and mineralformation evolution in amazonite pegmatites of Kola peninsula, - Leningrad, Nauka, 1986, pp.168.
    Sweden
     
    • Dalarna
      • Säter
        • Gustavs
    		GFF (1898) 20, 308-312
    • Lappland
      • Jokkmokk
        • Varjisträsk
    • Värmland
      • Filipstad
    		No reference listed
    USA
     
    • Arizona
      • Mohave Co.
        • Boulder Springs
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 394; Pabst & Woodhouse (1964); Fitzpatrick, J. & Pabst, A. (1986), Thalenite from AZ, Am.Min.: 71:188-193; Galbraith, F.W. & Brennan (1959), Minerals of AZ: 99.
    • Colorado
      • Jefferson Co.
        • South Platte Pegmatite District
    		Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11
      • Teller Co.
    		Min Rec 36:2 pp143-185
    Adams, J. W.; Hildebrand, Fred A.; Havens, R. G. (1962): Thalenite from Teller County, Colorado. U.S. Geological Survey Professional Paper No. 450-D, 6-8.
    • Texas
      • Burnet Co.
    		R&M 66:3 pp 196-224
      • Llano Co.
    		R&M 66:3 pp 196-224
    • Wisconsin
      • Marathon Co.
        • Wausau pluton
          • "Rotten granite" quarries
    		www.uwrf.edu/~wc01
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. 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. If you would like to add information to improve the quality of our database, then click here to register.