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Kainosite-(Y)

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Furka basis tunnel (west section), Oberwald, Goms, Wallis (Valais), Switzerland
© Stephan Wolfsried

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Formula:
Ca
 
2
(Y,Ce)
 
2
Si
 
4
O
 
12
CO
 
3
·H
 
2
O
System:OrthorhombicHardness:5 - 6
Name:Named by Nordenskiöld (1886) from the greek καινος, uncommon, in allusion to its unusual chemical composition
This page provides mineralogical data about Kainosite-(Y).

Classification of Kainosite-(Y)

IMA status:Approved
Strunz 8th edition ID:8/E.09-10
Nickel-Strunz 10th (pending) edition ID:9.CF.10

9 : SILICATES (Germanates)
C : Cyclosilicates
F : [Si4O12]8- 4-membered single rings, with insular complex anions
Dana 8th edition ID:60.2.1.1

60 : CYCLOSILICATES Four-Membered Rings
2 : Four-Membered Rings with other anion groups
Hey's CIM Ref.:17.4.10

17 : Silicates Containing other Anions
4 : Silicates with carbonates
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Type Occurrence of Kainosite-(Y)

Type Locality:Igletjern (Igeltjern) feldspar quarry, Hidra (Hitterø), Flekkefjord, Vest-Agder, Norway
Year of Discovery:1885

Physical Properties of Kainosite-(Y)

Hardness (Mohs):5 - 6

Crystallography of Kainosite-(Y)

Crystal System:Orthorhombic

Optical Data of Kainosite-(Y)

Type:Biaxial (-)
RI values: nα = 1.662 - 1.665 nβ = 1.682 - 1.689 nγ = 1.687 - 1.692
2V:Measured: 40° , Calculated: 38° to 52°
Maximum Birefringence:δ = 0.025 - 0.027

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

Chemical Properties of Kainosite-(Y)

Formula:
Ca
 
2
(Y,Ce)
 
2
Si
 
4
O
 
12
CO
 
3
·H
 
2
O
Essential elements:C, Ca, H, O, Si, Y
All elements listed in formula:C, Ca, Ce, H, O, Si, Y

Relationship of Kainosite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.CF.05Ashburtonite
Pb
 
4
Cu
 
4
[(OH)
 
3
|Cl|(HCO
 
3
)
 
4
|Si
 
4
O
 
12
] · H
 
2
O
9.CF.15Clinophosinaite
Na
 
12
(Ca,Sr)
 
4
(PO
 
4
)
 
4
(Si
 
4
O
 
12
)
9.CF.15Phosinaite-(Ce)
Na
 
13
Ca
 
2
(Ce,La,Th,Nd,Pr)[(PO
 
4
)
 
4
|Si
 
4
O
 
12
]
9.CF.20Strakhovite
NaBa
 
3
(Mn,Mn)
 
4
Si
 
6
O
 
19
(OH)
 
3
9.CF.25Cerchiaraite
Ba
 
4
Mn
 
4
Si
 
6
(O,OH,Cl)
 
26
Related Minerals - Hey's Index Grouping:

- +
17.4.1Tilleyite
Ca
 
5
[(CO
 
3
)
 
2
|Si
 
2
O
 
7
]
17.4.2Spurrite
Ca
 
5
[CO
 
3
|(SiO
 
4
)
 
2
]
17.4.3Paraspurrite
Ca
 
5
[CO
 
3
|(SiO
 
4
)
 
2
]
17.4.4Scawtite
Ca
 
7
Si
 
6
(CO
 
3
)O
 
18
·2H
 
2
O
17.4.5Fukalite
Ca
 
4
[CO
 
3
|(HSiO
 
4
)
 
2
]
17.4.6Meionite
Ca
 
4
[CO
 
3
|(Al
 
2
Si
 
2
O
 
8
)
 
3
]
17.4.7Cancrinite
Na
 
6
Ca
 
2
[(CO
 
3
)
 
2
|Al
 
6
Si
 
6
O
 
24
] · 2H
 
2
O
17.4.8Carletonite
KNa
 
4
Ca
 
4
Si
 
8
O
 
18
(CO
 
3
)
 
4
(OH,F)·H
 
2
O
17.4.9Iimoriite-(Y)
Y
 
2
[CO
 
3
|SiO
 
4
]
17.4.11Caysichite-(Y)
Ca
 
2
Y
 
2
Si
 
4
O
 
10
(CO
 
3
)
 
3
·4H
 
2
O
17.4.12Lepersonnite-(Gd)
Ca(Gd,Dy)
 
2
[(UO
 
2
)
 
6
(OH)
 
6
(CO
 
3
)
 
2
(SiO
 
4
)]
 
4
 ·48(H
 
2
O)
17.4.13Ashburtonite
Pb
 
4
Cu
 
4
[(OH)
 
3
|Cl|(HCO
 
3
)
 
4
|Si
 
4
O
 
12
] · H
 
2
O
17.4.14Surite
Pb(Pb,Ca)(CO
 
3
)
 
2
(Al,Fe,Mg)
 
2
(Si,Al)
 
4
O
 
10
(OH)
 
2
17.4.15Tundrite-(Ce)
Na
 
2
Ce
 
2
TiO
 
2
(SiO
 
4
)(CO
 
3
)
 
2
17.4.16Tundrite-(Nd)
Na
 
3
(Nd,La)
 
4
(Ti,Nb)
 
2
(SiO
 
4
)
 
2
(CO
 
3
)
 
3
O
 
4
(OH)·2H
 
2
O

Other Names for Kainosite-(Y)

Synonyms:
CenositeKainosite
Other Languages:
German:Cenosit
Kainosit
Russian:Кайнозит-(Y)
Spanish:Cenosita
Kainosita

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 Kainosite-(Y)

Reference List:Nordenskiöld, A.E. (1886): Mineralogiska bidrag. Kainosit, et nytt mineral från Hitterö i Norge. Geologiska Föreningen i Stockholm Förhandlingar 8, 143-146

Schetelig, J. (1922): Kainosit. 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, 124-127

Giuseppetti, G., Tadini, C., and Oddone, M. (1989) Cenosite-(Y) from Baveno, Novara (Italy): crystal structure. Neues Jahrbuch für Mineralogie, Monatshefte (1989): 153-164.

American Mineralogist (1964): 49: 1738.

Internet Links for Kainosite-(Y)

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    Localities for Kainosite-(Y)

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