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Lemmleinite-Ba

Big Photo

Zheleznyi Mine (Iron Mine), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© O. Dziallas

Show Lemmleinite-Ba Photos (6)
Formula:
Na
 
2
K
 
2
Ba(Ti,Nb)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 5H
 
2
O
System:MonoclinicColour:orange, reddish-brown, ...
Hardness:5½
Name:Named in allusion to its composition with dominant barium, and its relationship to Lemmleinite-K.


The barium analogue of Lemmleinite-K.

Classification of Lemmleinite-Ba

IMA status:Approved 1998
Strunz 8th edition ID:8/E.07-75
Nickel-Strunz 10th (pending) edition ID:9.CE.30d

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 Lemmleinite-Ba

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

Physical Properties of Lemmleinite-Ba

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:orange, reddish-brown, brownish, yellowish, nearly colourless
Streak:white
Hardness (Mohs):5½
Hardness Data:Measured
Cleavage:Poor/Indistinct
Density (measured):3.03 g/cm3
Density (calculated):3.05 g/cm3

Crystallography of Lemmleinite-Ba

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 = 14.216Å, b = 13.755Å, c = 7.767Å
β = 116.7°
Ratio:a:b:c = 1.034 : 1 : 0.565
Unit Cell Volume:V 1357 ų
Z:2

Optical Data of Lemmleinite-Ba

Type:Biaxial (+)
RI values: nα = 1.684 nβ = 1.690 nγ = 1.820
Maximum Birefringence:δ = 0.136

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

Chemical Properties of Lemmleinite-Ba

Formula:
Na
 
2
K
 
2
Ba(Ti,Nb)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 5H
 
2
O
All elements listed in formula:Ba, H, K, Na, Nb, O, Si, Ti

Relationship of Lemmleinite-Ba to other Species

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
 
8
O
 
26
·H
 
2
O
9.CE.25Byelorussite-(Ce)
Ba
 
2
NaCe
 
2
MnTi
 
2
Si
 
8
O
 
26
(F,OH) · H
 
2
O
9.CE.25Joaquinite-(Ce)
Ba
 
2
NaCe
 
2
FeTi
 
2
Si
 
8
O
 
26
(OH,F) · H
 
2
O
9.CE.25Orthojoaquinite-(Ce)
Ba
 
2
NaCe
 
2
FeTi
 
2
Si
 
8
O
 
26
(O,OH) · H
 
2
O
9.CE.25Strontiojoaquinite
Sr
 
2
Ba
 
2
(Na,Fe)
 
2
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
2
·H
 
2
O
9.CE.25Strontio-orthojoaquinite
Sr
 
2
Ba
 
2
(Na,Fe)
 
2
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
2
·H
 
2
O
9.CE.25Orthojoaquinite-(La)
Ba
 
2
NaLa
 
2
Fe
2+
 
Ti
 
2
Si
 
8
O
 
26
(O,OH)·H
 
2
O
9.CE.30eLabuntsovite-Mn
Na
 
4
K
 
4
(Ba,K)
 
2
Mn
2+
 
(Ti,Nb)
 
8
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
4
 · 10-12H
 
2
O
9.CE.30aNenadkevichite
(Na,Ca)(Nb,Ti)Si
 
2
O
 
7
·2H
 
2
O
9.CE.30dLemmleinite-K
K
 
2
(Ti,Nb)
 
2
[(OH,O)
 
2
|Si
 
4
O
 
12
] · 4H
 
2
O
9.CE.30aKorobitsynite
Na
 
2
(Ti,Nb)
 
2
[(OH,O)
 
2
|Si
 
4
O
 
12
] · 3-4H
 
2
O
9.CE.30cKuzmenkoite-Mn
K
 
2
Mn
2+
 
(Ti,Nb)
 
4
[(OH,O)
 
2
|Si
 
4
O
 
12
]
 
2
 · 5H
 
2
O
9.CE.30bVuoriyarvite-K
K
 
2
(Nb,Ti)
 
2
[(O,OH)
 
2
|Si
 
4
O
 
12
] · 4H
 
2
O
9.CE.30bTsepinite-Na
Na
 
2
(Ti,Nb)
 
2
[(OH,O)
 
2
|Si
 
4
O
 
12
] · 3H
 
2
O
9.CE.30cKarupmøllerite-Ca
(Na,Ca,K)
 
2
Ca(Nb,Ti)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 7H
 
2
O
9.CE.30eLabuntsovite-Mg
Na
 
4
K
 
4
(Ba,K)
 
2
Mg(Ti,Nb)
 
8
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
4
 · 10H
 
2
O
9.CE.30eLabuntsovite-Fe
Na
 
4
K
 
4
(Ba,K)
 
2
Fe
2+
 
(Ti,Nb)
 
8
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
4
 · 10H
 
2
O
9.CE.30cGjerdingenite-Fe
K
 
2
Fe
2+
 
(Nb,Ti)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 6H
 
2
O
9.CE.30hNeskevaaraite-Fe
K
 
3
Na
 
2
Fe
2+
 
(Ti,Nb)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 5-6 H
 
2
O
9.CE.30bTsepinite-K
K
 
2
(Ti,Nb)
 
2
[(OH,O)
 
2
|Si
 
4
O
 
12
] · 3H
 
2
O
9.CE.30bParatsepinite-Ba
Ba
 
4
(Ti,Nb)
 
8
[(OH,O)
 
2
|Si
 
4
O
 
12
]
 
4
 · 8H
 
2
O
9.CE.30bTsepinite-Ca
Ca(Ti,Nb)
 
2
[(OH,O)
 
2
|Si
 
4
O
 
12
] · 3H
 
2
O
9.CE.30hAlsakharovite-Zn
NaSrKZn(Ti,Nb)
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
 · 7 H
 
2
O
9.CE.30cGjerdingenite-Mn
K
 
2
Mn
2+
 
(Nb,Ti)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 6H
 
2
O
9.CE.30cLepkhenelmite-Zn
(Ba,K)
 
2
Zn(Ti,Nb)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 7H
 
2
O
9.CE.30bTsepinite-Sr
Sr(Ti,Nb)
 
2
[(OH,O)
 
2
|Si
 
4
O
 
12
] · 3H
 
2
O
9.CE.30bParatsepinite-Na
(Na,Sr,K,Ca)
 
7
(Ti,Nb)
 
8
[Si
 
4
O
 
12
]
 
4
(O,OH)
 
8
·nH
 
2
O n ~ 8
9.CE.30fParalabuntsovite-Mg
Na
 
8
K
 
8
Mg
 
8
Ti
 
16
(Si
 
4
O
 
12
)
 
8
(O,OH)
 
16
· n(H
 
2
O)
9.CE.30cGjerdingenite-Ca
K
 
2
Ca(Nb,Ti)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 6H
 
2
O
9.CE.30cGjerdingenite-Na
K
 
2
Na
 
2
(Nb,Ti)
 
4
[(OH,O)
 
2
|Si
 
4
O
 
12
]
 
2
 · 5H
 
2
O
9.CE.30hGutkovaite-Mn
K
 
2
CaMn(Ti,Nb)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 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
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 6H
 
2
O
9.CE.30gOrganovaite-Zn
K
 
2
Zn(Nb,Ti)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 6H
 
2
O
9.CE.30gParakuzmenkoite-Fe
(K,Ba)
 
4
Fe(Ti,Nb)
 
8
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
4
 · 14H
 
2
O
9.CE.30cIMA2008-001
(K,Na,Sr,Ba)
 
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 Lemmleinite-Ba

Synonyms:
IMA1998-052a
Other Languages:
Russian:Леммлейнит-Ba

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 Lemmleinite-Ba

Reference List:Chukanov, N.V., I.V. Pekov, R.K. Rastsvetaeva, A.E. Zadov & V.V. Nedel’ko (2001): Lemmleinite-Ba, Na2K2Ba1+XTi8(Si4O12)2(O,OH)4 · 5 H2O, a new mineral of the labuntsovite group.- Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 130(3), 36-43.

European Journal of Mineralogy: 14: 165-173.

Articles/Blogs about Lemmleinite-Ba

Internet Links for Lemmleinite-Ba

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    Localities for Lemmleinite-Ba

    (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
    		P.M. Kartashov data
    N.V. Chukanov et al. (2001) Zap. Vser. Min. Ob. 130(3), 36-43
          • Kovdor Massif
    		http://maurice.strahlen.org/kola/kovdor.htm
          • Lovozero Massif
    Mineral and/or Locality
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