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Organovaite-Mn

Big Photo

Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© Elmar Lackner

Show Organovaite-Mn Photos (3)
Formula:
K
 
2
Mn(Nb,Ti)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 6H
 
2
O
System:MonoclinicColour:Pinkish in various ...
Hardness:5
Name:Named for Natalia Ivanovna Organova (b. 1929), Russian crystallographer


Labuntsovite Group.

Classification of Organovaite-Mn

IMA status:Approved 2000
Strunz 8th edition ID:8/E.07-
Nickel-Strunz 10th (pending) edition ID:9.CE.30g

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 Organovaite-Mn

Type Locality:Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
General Appearance of Type Material:stubby prismatic crystals up to 0.3 mm, and pseudomorphs after vuonnemite crystals up to 4 cm
Place of Conservation of Type Material:Fersman Mineralogical Museum, Moscow, Russia
Geological Setting of type material:ultrabasic massif
Associated Minerals at type locality:
YofortieriteSteenstrupine-(Ce)SodaliteRhabdophane-(Ce)Natrolite
MicroclineEudialyteElpiditeCristobaliteArfvedsonite
AlbiteAegirine

Physical Properties of Organovaite-Mn

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Pinkish in various shades, rose-brown, yellow-brown
Streak:White
Hardness (Mohs):5
Tenacity:Brittle
Cleavage:None Observed
Fracture:Irregular/Uneven
Density (measured):2.88 g/cm3
Density (calculated):2.92 g/cm3

Crystallography of Organovaite-Mn

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 = 14.551Å, b = 14.001Å, c = 15.702Å
β = 117.584°
Ratio:a:b:c = 1.039 : 1 : 1.121
Unit Cell Volume:V 2,835.33 ų (Calculated from Unit Cell)
Z:1
X-Ray Powder Diffraction:
d-spacingIntensity
6.99 (100)
6.43 (25)
4.936 (28)
3.227 (89)
3.123 (68)
2.607 (25)
Comments:Powder diffractogram, MoKalpha radiation
Format: d/A (I/%) (hkl)

Optical Data of Organovaite-Mn

Type:Biaxial (+)
RI values: nα = 1.683 nβ = 1.692 nγ = 1.775
2V:Calculated: 38°
Maximum Birefringence:δ = 0.092

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:weak
Pleochroism:Visible
Comments:X, Z: colourless
Y: light brown

Chemical Properties of Organovaite-Mn

Formula:
K
 
2
Mn(Nb,Ti)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 6H
 
2
O
All elements listed in formula:H, K, Mn, Nb, O, Si, Ti
Analytical Data:Results from electron microprobe analysis, excpet for water which was determined on a different sample by thermogravimetry
Na2O (0.51)
K2O (4.31)
CaO (1.06)
BaO (1.31)
MnO (5.07)
FeO (0.24)
ZnO (2.04)
Al2O3 (0.28)
SiO2 (38.36)
TiO2 (8.87)
Nb2O5 (27.97)
H2O (10.40)

sum 100.42 wt.-%
Empirical Formula:
(K
 
2.27
Zn
 
0.62
Ca
 
0.47
Na
 
0.41
Ba
 
0.21
)
 
=3.98
 (Mn
 
1.77
Fe
 
0.08
)
 
=1.85
(Nb
 
5.23
Ti
 
2.76
)
 
=7.99
[Si
 
15.86
Al
 
0.14
O
 
48
][O
 
6.03
(OH)
 
1.97
]
 
=8.00
 · 12.80H
 
2
O (for Z=2)

Relationship of Organovaite-Mn to other Species

Member of Group:
Labuntsovite Group:
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,[])
 
8
Nb
 
4
(Si
 
4
O
 
12
)
 
2
(O,OH)
 
4
·8H
 
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.30dLemmleinite-Ba
Na
 
2
K
 
2
Ba(Ti,Nb)
 
4
[(O,OH)
 
2
|Si
 
4
O
 
12
]
 
2
 · 5H
 
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
 · 7H
 
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-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.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 Organovaite-Mn

Synonyms:
IMA2000-031
Other Languages:

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 Organovaite-Mn

Reference List:N.V. Chukanov, I.V. Pekov, A.E. Zadov, S.V. Krivovichev, P.C.Burns, Yu. Schneider (2001): Organovaite-Mn,K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O, a new labuntsovite-group mineral from the Lovozero massif, Kola Peninsula. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 130(2), 46-­53.

American Mineralogist (2002): 87: 1731-1735 (abstract).

European Journal of Mineralogy (2002): 14: 165-173.

Internet Links for Organovaite-Mn

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    Localities for Organovaite-Mn

    (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
          • Lovozero Massif
    		N.V. Chukanov, I.V. Pekov, A.E. Zadov, S.V. Krivovichev, P.C.Burns, Yu. Schneider (2001): Organovaite-Mn,K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O, a new labuntsovite-group mineral from the Lovozero massif, Kola Peninsula. Zap. Vseross. Mineral. Obshch. 130(2), 46­53
    N.V. Chukanov, I.V. Pekov, A.E. Zadov, S.V. Krivovichev, P.C.Burns, Yu. Schneider (2001): Organovaite-Mn,K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O, a new labuntsovite-group mineral from the Lovozero massif, Kola Peninsula. Zap. Vseross. Mineral. Obshch. 130(2), 46­53
    Mineral and/or Locality
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