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Manganokukisvumite

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Formula:
Na
 
6
MnTi
 
4
(Si
 
8
O
 
24
)O
 
4
 · 4H
 
2
O
System:OrthorhombicColour:Colourless
Hardness:5½ - 6
Name:Named as the manganese-dominant analogue of kukisvumite.
This page provides mineralogical data about Manganokukisvumite.

Classification of Manganokukisvumite

IMA status:Approved 2002
Nickel-Strunz 10th (pending) edition ID:9.DB.20

9 : SILICATES (Germanates)
D : Inosilicates
B : Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals
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Type Occurrence of Manganokukisvumite

Type Locality:Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
General Appearance of Type Material:Thin, flattened and sword-shaped crystals to 0.5 mm in length, commonly forming rosette-like radiating groups.
Geological Setting of type material:From small cavities in an albite-rich syenite breccia.

Physical Properties of Manganokukisvumite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colourless
Streak:White
Hardness (Mohs):5½ - 6
Tenacity:Sectile
Cleavage:None Observed
Fracture:Splintery
Density (measured):2.86 g/cm3
Density (calculated):2.88 g/cm3

Crystallography of Manganokukisvumite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pccn {P21/c 21/c 2/n}
Cell Parameters:a = 29.05Å, b = 8.612Å, c = 5.22Å
Ratio:a:b:c = 3.373 : 1 : 0.606
Unit Cell Volume:V 1,305.93 ų (Calculated from Unit Cell)
Z:2

Optical Data of Manganokukisvumite

Type:Biaxial (-)
RI values: nα = 1.657 nβ = 1.741 - 1.747 nγ = 1.789 - 1.795
2V:Measured: 70°
Maximum Birefringence:δ = 0.132 - 0.138

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

Chemical Properties of Manganokukisvumite

Formula:
Na
 
6
MnTi
 
4
(Si
 
8
O
 
24
)O
 
4
 · 4H
 
2
O
Essential elements:H, Mn, Na, O, Si, Ti
All elements listed in formula:H, Mn, Na, O, Si, Ti

Relationship of Manganokukisvumite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.DB.05Balipholite
BaLiMg
 
2
Al
 
3
(Si
 
2
O
 
6
)
 
2
(OH)
 
4
9.DB.05Carpholite
Mn
2+
 
Al
 
2
(Si
 
2
O
 
6
)(OH)
 
4
9.DB.05Ferrocarpholite
(Fe
2+
 
,Mg)Al
 
2
(Si
 
2
O
 
6
)(OH)
 
4
9.DB.05Magnesiocarpholite
(Mg,Fe
2+
 
)Al
 
2
(Si
 
2
O
 
6
)(OH)
 
4
9.DB.05Potassiccarpholite
(K,☐)(Li,Mn
2+
 
)
 
2
Al
 
4
(Si
 
2
O
 
6
)
 
2
(OH,F)
 
8
9.DB.05Vanadiocarpholite
Mn
2+
 
V
3+
 
Al(Si
 
2
O
 
6
)(OH)
 
4
9.DB.10Lorenzenite
Na
 
2
Ti
 
2
(Si
 
2
O
 
6
)O
 
3
9.DB.15Lintisite
LiNa
 
3
Ti
 
2
(Si
 
2
O
 
6
)
 
2
O
 
2
 · 2H
 
2
O
9.DB.15Punkaruaivite
LiTi
 
2
(HSi
 
4
O
 
12
)(OH)
 
2
 · H
 
2
O
9.DB.17Eliseevite
LiNa
 
1.5
Ti
 
2
(H
 
1.5
Si
 
4
O
 
12
)O
 
2
 · 2H
 
2
O
9.DB.20Kukisvumite
Na
 
6
ZnTi
 
4
(Si
 
8
O
 
24
)O
 
4
 · 4H
 
2
O
9.DB.25Vinogradovite
(Na,Ca,K)
 
4
Ti
 
4
AlSi
 
6
O
 
23
(OH) · 2H
 
2
O
9.DB.25Paravinogradovite
Na
 
1-2
(Ti,Fe
3+
 
)
 
4
(Si
 
2
O
 
6
)
 
2
(AlSi
 
3
O
 
10
)(OH)
 
4
 · H
 
2
O
9.DB.30Nchwaningite
Mn
2+
2
(SiO
 
3
)(OH)
 
2
 · H
 
2
O
9.DB.35Plancheite
Cu
 
8
(Si
 
8
O
 
22
)(OH)
 
4
 · H
 
2
O
9.DB.40Shattuckite
Cu
 
5
(Si
 
2
O
 
6
)
 
2
(OH)
 
2
9.DB.40UM2005-31-SiO:CuH
Cu
 
11
(SiO
 
4
)(OH)
 
18
 · 9H
 
2
O ?
9.DB.45Aerinite
(Ca
 
5.1
Na
 
0.5
)(Fe
3+
 
,Al,Fe
2+
 
,Mg)
 
4
(Al,Mg)
 
6
[HSi
 
12
O
 
36
(OH)
 
12
][(CO
 
3
)
 
1.2
(H
 
2
O)
 
12
]
9.DB.50Capranicaite
KCaNaAl
 
4
B
 
4
Si
 
2
O
 
18

Other Names for Manganokukisvumite

Synonyms:
IMA2002-029Unnamed (MSH UK-112)
Other Languages:

Other Information

Fluorescence in UV light:None
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 Manganokukisvumite

Reference List:

- +
Gault et al. (2004), Canadian Mineralogist: 42: 781-785.

Internet Links for Manganokukisvumite

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    • Localities for Manganokukisvumite

    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.
    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.
    Canada
     
    • Québec
      • Montérégie
        • Rouville RCM
          • Mont Saint-Hilaire
    		Can Min 42:781-785(2004)
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
    		Gault et al. 2004; Yakovenchuk et al. 2005
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