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Paratsepinite-Na

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Formula:
(Na,Sr,K,Ca)
 
7
(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(O,OH)
 
8
·nH
 
2
O n ~ 8
System:MonoclinicColour:Colourless
Member of:Labuntsovite Group


Labuntsovite Group.

Classification of Paratsepinite-Na

IMA status:Approved 2003
Nickel-Strunz 10th (pending) edition ID:9.CE.30b

9 : SILICATES (Germanates)
C : Cyclosilicates
E : [Si4O12]8- 4-membered single rings (vierer-Einfachringe), without insular complex anions
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Type Occurrence of Paratsepinite-Na

Type Locality:Khibinpakhkchorr Mt., Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

Physical Properties of Paratsepinite-Na

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colourless

Crystallography of Paratsepinite-Na

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m {B1 1 2/m} {C2/m} {C1 2/m 1}
Cell Parameters:a = 14.596Å, b = 14.249Å, c = 15.852Å
β = 117.27°
Ratio:a:b:c = 1.024 : 1 : 1.112
Unit Cell Volume:V 2,930.45 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
7.09(100)
3.24(90)
3.15(80)
3.11(80)
2.54(70)
2.491(70)
Comments:From type description.

Optical Data of Paratsepinite-Na

Type:Biaxial (+)
RI values: nα = 1.657 nβ = 1.666 nγ = 1.765
2V:Measured: 19° to 31°, Calculated: 35°
Maximum Birefringence:δ = 0.108

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

Chemical Properties of Paratsepinite-Na

Formula:
(Na,Sr,K,Ca)
 
7
(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(O,OH)
 
8
·nH
 
2
O n ~ 8
Essential elements:H, Na, O, Si, Ti
All elements listed in formula:Ca, H, K, Na, Nb, O, Si, Sr, Ti

Relationship of Paratsepinite-Na to other Species

Member of:Labuntsovite Group
Other Members of Group:

- +
Gutkovaite-Mn
K
 
2
CaMn(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 5H
 
2
O
Karupmøllerite-Ca
(Na,Ca,K)
 
2
Ca(Nb,Ti)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 7H
 
2
O
Korobitsynite
Na
 
2
(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 3-4H
 
2
O
Kuzmenkoite-Mn
K
 
2
Mn
2+
 
(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(OH,O)
 
4
 · 5H
 
2
O
Kuzmenkoite-Zn
K
 
2
Zn(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(OH,O)
 
4
·6-8H
 
2
O
Labuntsovite-Fe
Na
 
4
K
 
4
(Ba,K)
 
2
Fe
2+
 
(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(O,OH)
 
8
 · 10H
 
2
O
Labuntsovite-Mg
Na
 
4
K
 
4
(Ba,K)
 
2
Mg(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(O,OH)
 
8
 · 10H
 
2
O
Labuntsovite-Mn
Na
 
4
K
 
4
(Ba,K)
 
2
Mn
2+
 
(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(O,OH)
 
8
 · 10-12H
 
2
O
Lemmleinite-Ba
Na
 
2
K
 
2
Ba(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 5H
 
2
O
Lemmleinite-K
K
 
2
(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 4H
 
2
O
Lepkhenelmite-Zn
(Ba,K)
 
2
Zn(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 7H
 
2
O
Nenadkevichite Subgroup
Neskevaaraite-Fe
K
 
3
Na
 
2
Fe
2+
 
(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 5-6 H
 
2
O
Organovaite-Mn
K
 
2
Mn(Nb,Ti)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 6H
 
2
O
Organovaite-Zn
K
 
2
Zn(Nb,Ti)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 6H
 
2
O
Parakuzmenkoite-Fe
(K,Ba)
 
4
Fe(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(O,OH)
 
8
 · 14H
 
2
O
Paralabuntsovite-Mg
Na
 
8
K
 
8
Mg
 
8
Ti
 
16
(Si
 
4
O
 
12
)
 
8
(O,OH)
 
16
· nH
 
2
O
Paratsepinite-Ba
Ba
 
4
(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(OH,O)
 
8
 · 8H
 
2
O
Tsepinite-Ca
Ca(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 3H
 
2
O
Tsepinite-K
K
 
2
(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 3H
 
2
O
Tsepinite-Na
Na
 
2
(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 3H
 
2
O
Tsepinite-Sr
Sr(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 3H
 
2
O
Vuoriyarvite-K
K
 
2
(Nb,Ti)
 
2
(Si
 
4
O
 
12
)(O,OH)
 
2
 · 4H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
9.CE.05Papagoite
CaCu[H
 
3
AlSi
 
2
O
 
9
]
9.CE.10Verplanckite
Ba
 
2
(Mn,Fe,Ti)Si
 
2
O
 
6
(O,OH,Cl,F)
 
2
 · 3H
 
2
O or near
9.CE.15Baotite
Ba
 
4
(Ti,Nb)
 
8
Si
 
4
O
 
28
Cl
9.CE.20Nagashimalite
Ba
 
4
(V,Ti)
 
4
B
 
2
Si
 
8
O
 
27
(O,OH)
 
2
Cl
9.CE.20Taramellite
Ba
 
4
(Fe
3+
 
,Ti,Fe
2+
 
,Mg)
 
4
(B
 
2
Si
 
8
O
 
27
)O
 
2
Cl
 
x
9.CE.20Titantaramellite
Ba
 
4
(Ti,Fe
3+
 
,Fe
2+
 
,Mg)
 
4
(B
 
2
Si
 
8
O
 
27
)O
 
2
Cl
 
x
9.CE.25Bario-orthojoaquinite
(Ba,Sr)
 
4
Fe
 
2
Ti
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
 · H
 
2
O
9.CE.25Byelorussite-(Ce)
NaBa
 
2
Ce
 
2
MnTi
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
(F,OH) · H
 
2
O
9.CE.25Joaquinite-(Ce)
NaBa
 
2
Ce
 
2
FeTi
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
(OH,F) · H
 
2
O
9.CE.25Orthojoaquinite-(Ce)
NaBa
 
2
Ce
 
2
FeTi
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
(O,OH) · H
 
2
O
9.CE.25Strontiojoaquinite
Sr
 
2
Ba
 
2
(Na,Fe)
 
2
Ti
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
(O,OH)
 
2
 · H
 
2
O
9.CE.25Strontio-orthojoaquinite
(Na,Fe)
 
2
Sr
 
2
Ba
 
2
Ti
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
(O,OH)
 
2
 · H
 
2
O
9.CE.25Orthojoaquinite-(La)
NaBa
 
2
La
 
2
Fe
2+
 
Ti
 
2
[Si
 
4
O
 
12
]
 
2
O
 
2
(O,OH) · H
 
2
O
9.CE.30eLabuntsovite-Mn
Na
 
4
K
 
4
(Ba,K)
 
2
Mn
2+
 
(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(O,OH)
 
8
 · 10-12H
 
2
O
9.CE.30aNenadkevichite
(Na,◻)
 
8
Nb
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 8H
 
2
O
9.CE.30dLemmleinite-K
K
 
2
(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 4H
 
2
O
9.CE.30aKorobitsynite
Na
 
2
(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 3-4H
 
2
O
9.CE.30cKuzmenkoite-Mn
K
 
2
Mn
2+
 
(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(OH,O)
 
4
 · 5H
 
2
O
9.CE.30bVuoriyarvite-K
K
 
2
(Nb,Ti)
 
2
(Si
 
4
O
 
12
)(O,OH)
 
2
 · 4H
 
2
O
9.CE.30bTsepinite-Na
Na
 
2
(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 3H
 
2
O
9.CE.30cKarupmøllerite-Ca
(Na,Ca,K)
 
2
Ca(Nb,Ti)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 7H
 
2
O
9.CE.30eLabuntsovite-Mg
Na
 
4
K
 
4
(Ba,K)
 
2
Mg(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(O,OH)
 
8
 · 10H
 
2
O
9.CE.30eLabuntsovite-Fe
Na
 
4
K
 
4
(Ba,K)
 
2
Fe
2+
 
(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(O,OH)
 
8
 · 10H
 
2
O
9.CE.30dLemmleinite-Ba
Na
 
2
K
 
2
Ba(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 5H
 
2
O
9.CE.30cGjerdingenite-Fe
K
 
2
Fe
2+
 
(Nb,Ti)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 6H
 
2
O
9.CE.30hNeskevaaraite-Fe
K
 
3
Na
 
2
Fe
2+
 
(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 5-6 H
 
2
O
9.CE.30bTsepinite-K
K
 
2
(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 3H
 
2
O
9.CE.30bParatsepinite-Ba
Ba
 
4
(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(OH,O)
 
8
 · 8H
 
2
O
9.CE.30bTsepinite-Ca
Ca(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 3H
 
2
O
9.CE.30hAlsakharovite-Zn
NaSrKZn(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 7H
 
2
O
9.CE.30cGjerdingenite-Mn
K
 
2
Mn
2+
 
(Nb,Ti)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 6H
 
2
O
9.CE.30cLepkhenelmite-Zn
(Ba,K)
 
2
Zn(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 7H
 
2
O
9.CE.30bTsepinite-Sr
Sr(Ti,Nb)
 
2
(Si
 
4
O
 
12
)(OH,O)
 
2
 · 3H
 
2
O
9.CE.30fParalabuntsovite-Mg
Na
 
8
K
 
8
Mg
 
8
Ti
 
16
(Si
 
4
O
 
12
)
 
8
(O,OH)
 
16
· nH
 
2
O
9.CE.30cGjerdingenite-Ca
K
 
2
Ca(Nb,Ti)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 6H
 
2
O
9.CE.30cGjerdingenite-Na
K
 
2
Na
 
2
(Nb,Ti)
 
4
(Si
 
4
O
 
12
)
 
2
(OH,O)
 
4
 · 5H
 
2
O
9.CE.30hGutkovaite-Mn
K
 
2
CaMn(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 5H
 
2
O
9.CE.30cKuzmenkoite-Zn
K
 
2
Zn(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(OH,O)
 
4
·6-8H
 
2
O
9.CE.30gOrganovaite-Mn
K
 
2
Mn(Nb,Ti)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 6H
 
2
O
9.CE.30gOrganovaite-Zn
K
 
2
Zn(Nb,Ti)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 6H
 
2
O
9.CE.30gParakuzmenkoite-Fe
(K,Ba)
 
4
Fe(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(O,OH)
 
8
 · 14H
 
2
O
9.CE.30cBurovaite-Ca
(Na,K)
 
4
Ca
 
2
(Ti,Nb)
 
8
(Si
 
4
O
 
12
)
 
4
(OH,O)
 
8
 · 12H
 
2
O
9.CE.45Komarovite
(Ca,Mn)Nb
 
2
[O
 
3
|Si
 
2
O
 
7
] · 3.5H
 
2
O
9.CE.45Natrokomarovite
(Na,Ca,H)
 
2
Nb
 
2
Si
 
2
O
 
10
(OH,F)
 
2
 · H
 
2
O

Other Names for Paratsepinite-Na

Synonyms:
IMA2003-008
Other Languages:
Russian:Парацепинит-Na

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 Paratsepinite-Na

Reference List:

- +
N. I. Organova, S. V. Krivovichev, Z. V. Shlyukova, A. E. Zadov, I. V. Rozhdestvenskaya and T. I. Ivanova (2004) Structure of the new mineral paratsepinite-Na and its place in the labuntsovite group
Crystallography Reports Volume 49, Number 6 / November Pages 946-952

Internet Links for Paratsepinite-Na

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    • Localities for Paratsepinite-Na

    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.
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		I,V, Pekov (2007) New minerals from former Soviet Union countries 1998-2006, - Miner. Almanac, v.11, p.39.
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