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Hellandite-(Y)

Big Photo

Lindvikskollen quarry, Lindvikskollen-Kalstadgangen pegmatite, Kragerø, Telemark, Norway
© Knut Eldjarn

Show Hellandite-(Y) Photos (11)
Formula:
(Ca,Y)
 
6
(Al,Fe
3+
 
)Si
 
4
B
 
4
O
 
20
(OH)
 
4
System:MonoclinicColour:Yellow, green
Lustre:VitreousHardness:5½


Hellandite Group.

Classification of Hellandite-(Y)

IMA status:Approved
Explanation of status:Redefinition approved as IMA 2000-F
Strunz 8th edition ID:8/F.36-10
Nickel-Strunz 10th (pending) edition ID:9.DK.20

9 : SILICATES (Germanates)
D : Inosilicates
K : Inosilicates with 5-periodic single chains
Dana 8th edition ID:54.2.2.1

54 : NESOSILICATES Borosilicates and Some Beryllosilicates
2 : Borosilicates and Some Beryllosilicates with B in [4] coordination
Hey's CIM Ref.:17.5.51

17 : Silicates Containing other Anions
5 : Borosilicates
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Type Occurrence of Hellandite-(Y)

Type Locality:Lindvikskollen quarry, Lindvikskollen-Kalstadgangen pegmatite, Kragerø, Telemark, Norway

Physical Properties of Hellandite-(Y)

Lustre:Vitreous
Colour:Yellow, green
Hardness (Mohs):5½

Crystallography of Hellandite-(Y)

Crystal System:Monoclinic

Optical Data of Hellandite-(Y)

Type:Biaxial (+)
RI values: nα = 1.640 nβ = 1.650 nγ = 1.660
2V:Measured: 80° , Calculated: 88°
Maximum Birefringence:δ = 0.020

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

Chemical Properties of Hellandite-(Y)

Formula:
(Ca,Y)
 
6
(Al,Fe
3+
 
)Si
 
4
B
 
4
O
 
20
(OH)
 
4
Essential elements:Al, B, Ca, H, O, Si
All elements listed in formula:Al, B, Ca, Fe, H, O, Si, Y

Relationship of Hellandite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DK.05Babingtonite
Ca
 
2
(Fe,Mn)FeSi
 
5
O
 
14
(OH)
9.DK.05Lithiomarsturite
LiCa
 
2
Mn
 
2
Si
 
5
O
 
14
(OH)
9.DK.05Manganbabingtonite
Ca
 
2
(Mn,Fe)FeSi
 
5
O
 
14
(OH)
9.DK.05Marsturite
NaCaMn
 
3
Si
 
5
O
 
14
(OH)
9.DK.05Nambulite
(Li,Na)Mn
 
4
Si
 
5
O
 
14
(OH)
9.DK.05Natronambulite
(Na,Li)(Mn,Ca)
 
4
Si
 
5
O
 
14
OH
9.DK.05Rhodonite
MnSiO
 
3
9.DK.05Scandiobabingtonite
Ca
 
2
(Fe
2+
 
,Mn)ScSi
 
5
O
 
14
(OH)
9.DK.05Fowlerite
9.DK.10Santaclaraite
CaMn
 
4
[Si
 
5
O
 
14
OH](OH)·H
 
2
O
9.DK.15Saneroite
Na
 
2
(Mn,Mn)
 
10
Si
 
11
VO
 
34
(OH)
 
4
9.DK.20Tadzhikite-(Ce)
(Ca,Ce)
 
4
(Ce,Y)
 
2
(Ti
4+
 
,Fe
3+
 
,Al)[B
 
4
Si
 
4
O
 
22
](OH)
 
2
9.DK.20Mottanaite-(Ce)
Ca
 
4
(CeCa)AlBe
 
2
(Si
 
4
B
 
4
O
 
22
)O
 
2
9.DK.20Ciprianiite
Ca
 
4
[(Th,U)(REE)]Al[]
 
2
(Si
 
4
B
 
4
O
 
22
)(OH,F)
 
2
9.DK.20Hellandite-(Ce)
(Ca,Ce)
 
6
(Al,Fe
3+
 
)Si
 
4
B
 
4
O
 
20
(OH)
 
4
Related Minerals - Hey's Index Grouping:

- +
17.5.1Manandonite
LiAl
 
4
Si
 
3
BO
 
10
(OH)
 
6
17.5.2Reedmergnerite
Na[BSi
 
3
O
 
8
]
17.5.3Searlesite
NaBSi
 
2
O
 
5
(OH)
 
2
17.5.4Olenite
(Na,[ ])[(Al,Li)
 
3
][Al
 
6
][(O,OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.5Elbaite
[Na][(Li,Al)
 
3
][Al
 
6
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.6Kalborsite
K
 
6
[Cl|B(OH)
 
4
|Al
 
4
Si
 
6
O
 
20
]
17.5.7Boromuscovite
KAl
 
2
[(OH)
 
2
|BSi
 
3
O
 
10
]
17.5.8Poudretteite
KNa
 
2
B
 
3
Si
 
12
O
 
30
17.5.9Liddicoatite
[Ca][Li
 
2
Al][Al
 
6
][(OH)
 
3
|F|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.10Datolite
CaB[OH|SiO
 
4
]
17.5.11Danburite
CaB
 
2
Si
 
2
O
 
8
17.5.12Howlite
Ca
 
2
B
 
5
SiO
 
9
(OH)
 
5
17.5.13Bakerite
Ca
 
4
B
 
4
[(OH)
 
4
|HBO
 
4
|(SiO
 
4
)
 
3
]
17.5.14Oyelite
Ca
 
10
Si
 
8
B
 
2
O
 
29
·12.5H
 
2
O
17.5.15Kornerupine
Mg
 
3
Al
 
6
(Si,Al,B)
 
5
O
 
21
(OH)
17.5.16Harkerite
Ca
 
24
Mg
 
8
Al
 
2
Si
 
8
(O,OH)
 
32
(BO
 
3
)
 
8
(CO
 
3
)
 
8
(H
 
2
O,Cl)
17.5.17Serendibite
(Ca,Na)
 
2
(Mg,Fe
2+
 
)
 
3
(Al,Fe
3+
 
)
 
3
[O
 
2
|(Si,Al,B)
 
6
O
 
18
]
17.5.18Stillwellite-(Ce)
(Ce,La,Ca)BSiO
 
5
17.5.19Tadzhikite-(Ce)
(Ca,Ce)
 
4
(Ce,Y)
 
2
(Ti
4+
 
,Fe
3+
 
,Al)[B
 
4
Si
 
4
O
 
22
](OH)
 
2
17.5.20Melanocerite-(Ce)
(Ce,Ca)
 
5
(Si,B)
 
3
O
 
12
(OH,F)·nH
 
2
O
17.5.21Okanoganite-(Y)
(Na,Ca)
 
3
(Y,Ce)
 
12
Si
 
6
B
 
2
O
 
27
F
 
14
17.5.22Tritomite-(Ce)
(Ce,La,Y,Th)
 
5
(Si,B)
 
3
(O,OH,F)
 
13
17.5.23Tritomite-(Y)
(Y,Ca,La,Fe)
 
5
(Si,B,Al)
 
3
(O,OH,F)
 
13
17.5.24Cappelenite-(Y)
Ba(Y,Ce)
 
6
Si
 
3
B
 
6
O
 
24
F
 
2
17.5.25Dumortierite
(Al,Fe
3+
 
)
 
7
[O
 
3
|BO
 
3
|(SiO
 
4
)
 
3
]
17.5.26Holtite
(Ta,Sb)Al
 
6
[O
 
3
|BO
 
3
|(SiO
 
4
)
 
3
]
17.5.27Dravite
[Na][Mg
 
3
][Al
 
6
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.28 Ferridravite
17.5.29Axinite-(Mg)
Ca
 
2
MgAl
 
2
[OH|BSi
 
4
O
 
15
]
17.5.30Uvite
[Ca][(Mg,Fe
2+
 
)
 
3
][MgAl
 
5
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.31Garrelsite
Ba
 
3
NaSi
 
2
B
 
7
O
 
16
(OH)
 
4
17.5.32Tienshanite
KNa
 
3
Na
 
6
Ca
 
2
Ba
 
6
Mn
 
6
(Ti
4+
 
,Nb)
 
6
B
 
12
Si
 
36
O
 
114
(O,OH,F)
 
11
17.5.33Leucosphenite
BaNa
 
4
Ti
 
2
B
 
2
Si
 
10
O
 
30
17.5.34Taramellite
Ba
 
4
(Fe
3+
 
,Ti,Fe
2+
 
,Mg)
 
4
(B
 
2
Si
 
8
O
 
27
)O
 
2
Cl
 
x
17.5.35Titantaramellite
Ba
 
4
(Ti,Fe
3+
 
,Fe
2+
 
,Mg)
 
4
(B
 
2
Si
 
8
O
 
27
)O
 
2
Cl
 
x
17.5.36Nagashimalite
Ba
 
4
(V,Ti)
 
4
B
 
2
Si
 
8
O
 
27
(O,OH)
 
2
Cl
17.5.37Chromdravite
[Na][Mg
 
3
][(Cr
3+
 
,Fe
3+
 
)
 
6
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.38Wawayandaite
Ca
 
6
Mn
 
2
BBe
 
9
Si
 
6
O
 
23
(OH,Cl)
 
15
17.5.39Werdingite
(Mg,Fe)
 
2
Al
 
14
Si
 
4
B
 
4
O
 
37
17.5.40Axinite-(Mn)
Ca
 
2
Mn
2+
 
Al
 
2
[OH|BSi
 
4
O
 
15
]
17.5.41Axinite
17.5.42Tinzenite
(Ca,Mn
2+
 
,Fe
2+
 
)
 
3
Al
 
2
[OH|BSi
 
4
O
 
15
]
17.5.44Schorl
[Na][Fe
2+
3
][Al
 
6
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.45Buergerite
[Na][Fe
3+
3
][Al
 
6
][O
 
3
|F|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.46Feruvite
[Ca][(Fe
2+
 
 ,Mg)
 
3
][MgAl
 
5
][(OH)
 
3
|OH|(BO
 
3
)
 
3
|Si
 
6
O
 
18
]
17.5.47Axinite-(Fe)
Ca
 
2
Fe
2+
 
Al
 
2
[OH|BSi
 
4
O
 
15
]
17.5.48Homilite
Ca
 
2
(Fe
2+
 
,Mg)B
 
2
[O|SiO
 
4
]
 
2
17.5.49Grandidierite
(Mg,Fe
2+
 
)(Al,Fe
3+
 
)
 
3
[O
 
2
|BO
 
3
|SiO
 
4
]
17.5.50Hyalotekite
(Ba,Pb,Ca,K)
 
6
(B,Si,Al)
 
2
(Si,Be)
 
10
O
 
28
(F,Cl)

Other Names for Hellandite-(Y)

Synonyms:
IMA2000-F
Other Languages:
Russian:Гелландит-(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 Hellandite-(Y)

Reference List:BRØGGER, W.C. (1903): Über Hellandit, ein neues Mineral (Vorlaüfige Mittheilungen). Nyt Magazin for Naturvidenskaberne 41, 213-221

BRØGGER, W.C.(1906): Hellandit von Lindvikskollen bei Kragerö, Norwegen. Zeitschrift für Kristallographie und Mineralogie 42, 417-439

BRØGGER, W.C. (1922): Neue Beobachtungen über die Krystallformen des Hellandits. In Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1922. 11, 3-16 + plates I-IV

OFTEDAL, I. (1964): On the Chemical Composition of Hellandite. Norsk Geologisk Tidsskrift 44, 35-37

OFTEDAL, I. (1965): Über den Hellandit, Tscherm. Miner. Petrogr. Mitteilungen (Mineralogy and Petrology), Vol. 10, Numbers 1-4, 125-129

HOGARTH, D.D., CHAO, G.Y. & HARRIS, D.C. (1972): New data on hellandite. Canadian Mineralogist, 11, 760-776.

American Mineralogist: 59: 212.

American Mineralogist (1977): 62: 89-99.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Oberti, R., G. Della Ventura, L. Ottolini, F. C. Hawthorne, P. Bonazzi (2002): Re-definition, nomenclature and crystal chemistry of the hellandite group. American Mineralogist 87, 745-752.
www.geo.vu.nl/~ima-cnmmn/hellandite.pdf

Internet Links for Hellandite-(Y)

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    Localities for Hellandite-(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.
    (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
      • Nord-du-Québec
        • Matagami
    		Canadian Mineralogist, 32, 33–147; American Mineralogist (1999) 84, pages 913–921
      • Papineau Co.
        • Portland Township
          • St-Pierre-de-Wakefield
    		Canadian Mineralogist Vol. 12, pp. 298-298 (1974)
    China
     
    • Hebei Province
      • Baoding Prefecture
        • Quyang Co.
    		Dizhi Xuebao, 60, 68–77; American Mineralogist, Volume 84, pages 913–921, 1999
    France
     
    • Midi-Pyrénées
      • Ariège
        • Luzenac
    		Le Cahier des Micromonteurs Year 1990 N° 4
    Italy
     
    • Piedmont
      • Torino Province
        • Luserna San Giovanni
    		- Finello, G., Ambrino, P., Kolitsch, U., Ciriotti, M.E., Blaß, G., Bracco, R. (2007): I minerali della “Pietra di Luserna”, Piemonte, Italia nord-occidentale. I. Alcune cave di gneiss della Val Luserna. Micro (località), 2/2007, 181-226.
    • Sardinia
      • Olbia-Tempio Pausania Province
        • La Maddalena
          • La Maddalena Island
    		Gamboni, A. (2003): Cala Francese - La Maddalena (SS). Micro (località), 2003, 11-20
    Japan
     
    • Honshu Island
      • Chubu Region
        • Gifu Prefecture
          • Nakatsugawa City
            • Hirukawa
    		Miyawaki, R. et al (1987) Kobutsugaku Zasshi, 18, 17–30; American Mineralogist, 84, pages 913–921, 1999
    Norway
     
    • Telemark
      • Drangedal
        • Tørdal
    		Raade, G. & Kristiansen, R. 2000a. Mineralogy and geochemistry of the Heftetjern granite pegmatite, Tørdal: a progress report. Skrifter Norsk Bergverkmuseum 17:19-25
      • Kragerø
        • Lindvikskollen-Kalstadgangen pegmatite
    		BRØGGER, W.C. (1903): Über Hellandit, ein neues Mineral (Vorlaüfige Mittheilungen). Nyt Magazin for Naturvidenskaberne 41, 213-221; Brøgger, W. C. (1906): Hellandit von Lindvikskollen bei Kragerö. Zeitschrift für Kristallographie und Mineralogie 42, 417-439 ; American Mineralogist, 62, 89, 1977); American Mineralogist, 87, pages 745–752, 2002;
    Tajikistan
     
    • Viloyati Mukhtori Gorno-Badakhshan (Viloyati Badakhshoni Kuni)
      • Pamir Mts
    		P,M. Kartashov data
    USA
     
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    		John Cianciulli, Curator, Franklin Min. Museum; analysis by Andy Roberts (pending publication in The Picking Table).
    Mineral and/or Locality
    Google
     
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