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Gerenite-(Y)

Big Photo

Khaldzan Buragtag massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia
© Pavel M. Kartashov

Formula:
(Ca,Na)
 
2
(Y,REE)
 
3
Si
 
6
O
 
18
·2H
 
2
O
System:TriclinicLustre:Vitreous
Hardness:5
Name:For Richard Geren (1917-), former executive vice-president of the Iron Ore Company of Canada. Mr. Geren initiated and supported the exploration program of the Strange Lake deposit.
This page provides mineralogical data about Gerenite-(Y).

Classification of Gerenite-(Y)

IMA status:Approved
Strunz 8th edition ID:8/E.13-20
Nickel-Strunz 10th (pending) edition ID:9.CJ.45

9 : SILICATES (Germanates)
C : Cyclosilicates
J : [Si6O18]12- 6-membered single rings (sechser-Einfachringe), without insular complex anions
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Type Occurrence of Gerenite-(Y)

Type Locality:Strange Lake complex (Lac Brisson complex), Labrador, Newfoundland and Labrador, Canada

Physical Properties of Gerenite-(Y)

Lustre:Vitreous
Hardness (Mohs):5

Crystallography of Gerenite-(Y)

Crystal System:Triclinic

Optical Data of Gerenite-(Y)

Type:Biaxial (-)
RI values: nα = 1.602 nβ = 1.607 nγ = 1.611
Maximum Birefringence:δ = 0.009

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

Chemical Properties of Gerenite-(Y)

Formula:
(Ca,Na)
 
2
(Y,REE)
 
3
Si
 
6
O
 
18
·2H
 
2
O
Essential elements:Ca, H, O, Si, Y
All elements listed in formula:Ca, H, Na, O, Si, Y

Relationship of Gerenite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.CJ.05Bazzite
Be
 
3
Sc
 
2
Si
 
6
O
 
18
9.CJ.05Beryl
Be
 
3
Al
 
2
Si
 
6
O
 
18
9.CJ.05Indialite
Mg
 
2
Al
 
4
Si
 
5
O
 
18
9.CJ.05Stoppaniite
(Na,[ ])
 
2
(Fe,Al,Mg)
 
4
[Be
 
6
Si
 
12
O
 
36
]·2H2O
9.CJ.10Cordierite
(Mg,Fe)
 
2
Al
 
4
Si
 
5
O
 
18
9.CJ.10Sekaninaite
(Fe,Mg)
 
2
Al
 
4
Si
 
5
O
 
18
9.CJ.15aCombeite
Na
 
2
Ca
 
2
Si
 
3
O
 
9
9.CJ.15bImandrite
Na
 
12
Ca
 
3
Fe
3+
2
[Si
 
6
O
 
18
]
 
2
9.CJ.15aKazakovite
Na
 
6
Ti[Si
 
6
O
 
16
(OH)
 
2
]
9.CJ.15cKoashvite
Na
 
6
(Ca,Mn)(Ti,Fe)Si
 
6
O
 
18
·H
 
2
O
9.CJ.15aLovozerite
Na
 
2
Ca(Zr,Ti)[Si
 
6
O
 
12
(OH,O)
 
6
]*H
 
2
O
9.CJ.15aTisinalite
Na
 
3
H
 
3
(Mn,Ca,Fe)TiSi
 
6
(O,OH)
 
18
·2H
 
2
O
9.CJ.15aZirsinalite
Na
 
6
(Ca,Mn
2+
 
,Fe
2+
 
)Zr[Si
 
6
O
 
18
]
9.CJ.15aLitvinskite
Na
 
2
([],Na,Mn)ZrSi
 
6
O
 
12
(OH,O)
 
6
9.CJ.15aKapustinite
Na
 
5
(Na,Mn
2+
 
)
 
<1
Zr[Si
 
6
O
 
16
(OH)
 
2
]
9.CJ.25Baratovite
KCa
 
7
(Ti,Zr)
 
2
Li
 
3
Si
 
12
O
 
36
F
 
2
9.CJ.25Katayamalite
KCa
 
7
Ti
 
2
Li
 
3
Si
 
12
O
 
36
(OH)
 
2
9.CJ.25Aleksandrovite
KCa
 
7
Sn
 
2
Li
 
3
Si
 
12
O
 
30
F
 
2
9.CJ.30Dioptase
Cu
 
6
(Si
 
6
O
 
18
)·6H
 
2
O
9.CJ.35Kostylevite
K
 
2
ZrSi
 
3
O
 
9
·H
 
2
O
9.CJ.40Petarasite
Na
 
5
Zr
 
2
[(OH,Cl)|Si
 
6
O
 
18
]·2H
 
2
O
9.CJ.50Odintsovite
K
 
2
Na
 
4
Ca
 
3
Ti
 
2
Be
 
4
Si
 
12
O
 
38
9.CJ.55Mathewrogersite
Pb
 
7
(Fe
2+
 
,Cu)Al
 
3
Ge[(OH,H
 
2
O)
 
6
|(Si
 
3
O
 
9
)
 
4
]
9.CJ.60Pezzottaite
Cs(Be
 
2
Li)Al
 
2
Si
 
6
O
 
18

Other Names for Gerenite-(Y)

Synonyms:
IMA1993-034
Other Languages:
Russian:Джеренит-(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 Gerenite-(Y)

Reference List:Canadian Mineralogist: 36: 793-800.

Internet Links for Gerenite-(Y)

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    Localities for Gerenite-(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
     
    • Newfoundland and Labrador
      • Labrador
    		Can.Min.(1998) 36, 793-800
    Mongolia
     
    • Hovd Aimag (Khovd Aimag)
      • Altai Mts
    		P.M.Kartashov data
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. Current server date and time: 18th Nov 2009 23:10:19