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Mozartite

Big Photo

Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa
© Knut Eldjarn

Show Mozartite Photos (4)
Formula:
CaMn
3+
 
[OH|SiO
 
4
]
System:OrthorhombicColour:Deep red
Hardness:6
This page provides mineralogical data about Mozartite.

Classification of Mozartite

IMA status:Approved
Strunz 8th edition ID:8/B.23-15
Nickel-Strunz 10th (pending) edition ID:9.AG.60

9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
Dana 8th edition ID:52.4.2.1

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
4 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
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Type Occurrence of Mozartite

Type Locality:Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, Italy
Year of Discovery:1993

Physical Properties of Mozartite

Colour:Deep red
Hardness (Mohs):6

Crystallography of Mozartite

Crystal System:Orthorhombic
Cell Parameters:a = 5.83Å, b = 7.22Å, c = 8.69Å
Ratio:a:b:c = 0.807 : 1 : 1.204
Unit Cell Volume:V 365.78 ų (Calculated from Unit Cell)

Optical Data of Mozartite

Type:Biaxial (+)
RI values: nα = 1.840 nβ = 1.855 nγ = 1.920
2V:Measured: 50° to 52.8°, Calculated: 54°
Maximum Birefringence:δ = 0.080

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

Chemical Properties of Mozartite

Formula:
CaMn
3+
 
[OH|SiO
 
4
]
Essential elements:Ca, H, Mn, O, Si
All elements listed in formula:Ca, H, Mn, O, Si
Common Impurities:Mg,Al

Relationship of Mozartite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.AG.05Abswurmbachite
CuMn
3+
6
O
 
8
(SiO
 
4
)
9.AG.05Braunite
Mn
2+
 
Mn
3+
6
[O
 
8
|SiO
 
4
]
9.AG.05Neltnerite
CaMn
3+
6
[O
 
8
|SiO
 
4
]
9.AG.05Braunite-II
CaMn
3+
14
SiO
 
24
9.AG.10Långbanite
(Mn
2+
 
,Ca)
 
4
(Mn
3+
 
,Fe
3+
 
)
 
9
Sb
5+
 
[O
 
8
|SiO
 
4
]
 
2
9.AG.15Malayaite
CaSn[O|SiO
 
4
]
9.AG.15Titanite
CaTi[O|SiO
 
4
]
9.AG.15Vanadomalayaite
CaV
4+
 
[O|SiO
 
4
]
9.AG.20Cerite-(Ce)
(Ce,Ca)
 
9
(Mg,Fe)Si
 
7
(O,OH,F)
 
28
9.AG.20Cerite-(La)
(La,Ce,Ca)
 
9
(Fe,Ca,Mg)(SiO
 
4
)
 
3
[SiO
 
3
(OH)]
 
4
(OH)
 
3
9.AG.25Trimounsite-(Y)
Y
 
2
Ti
 
2
[O
 
5
|SiO
 
4
]
9.AG.25Yftisite-(Y)
(Y,Dy,Er)
 
4
(Ti,Sn)O(SiO
 
4
)
 
2
(F,OH)
 
6
9.AG.30Sitinakite
KNa
 
2
Ti
 
4
Si
 
2
O
 
13
(OH)·2H
 
2
O
9.AG.35Kittatinnyite
Ca
 
2
Mn
 
2
Mn(SiO
 
4
)
 
2
(OH)
 
4
·9H
 
2
O
9.AG.40aNatisite
Na
 
2
Ti[O|SiO
 
4
]
9.AG.40bParanatisite
Na
 
2
Ti[O|SiO
 
4
]
9.AG.45Törnebohmite-(Ce)
(Ce,La)
 
2
Al(SiO
 
4
)
 
2
OH
9.AG.45Törnebohmite-(La)
(La,Ce)
 
2
Al(SiO
 
4
)
 
2
OH
9.AG.50Kuliokite-(Y)
Y
 
4
Al(SiO
 
4
)
 
2
(OH)
 
2
F
 
5
9.AG.55Chantalite
CaAl
 
2
[(OH)
 
4
|SiO
 
4
]
9.AG.60Vuagnatite
CaAl[OH|SiO
 
4
]
9.AG.65Hatrurite
Ca
 
3
[O|SiO
 
4
]
9.AG.70Jasmundite
Ca
 
11
[O
 
2
|S|(SiO
 
4
)
 
4
]
9.AG.75Afwillite
Ca
 
3
[HSiO
 
4
]
 
2
 · 2H
 
2
O
9.AG.80Bultfonteinite
Ca
 
2
[F|HSiO
 
4
] · H
 
2
O
9.AG.85Zoltaiite
BaV
4+
2
V
3+
12
Si
 
2
O
 
27
9.AG.90Tranquillityite
(Fe
2+
 
,Ca)
 
8
(Zr,Y)
 
2
Ti
 
3
[O
 
4
|SiO
 
4
]
 
3

Other Names for Mozartite

Synonyms:
IMA1991-016
Other Languages:
German:Mozartit
Russian:Моцартит
Spanish:Mozartita

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 Mozartite

Reference List:Canadian Mineralogist (1993): 31: 331-336.

New Minerals (1997), New Minerals 1990-1994.

Articles/Blogs about Mozartite

Internet Links for Mozartite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Mozartite in the Natural History Museum (London) online catalogue
  • Mozartite details from Handbook of Mineralogy (PDF)
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    Localities for Mozartite

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    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.
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    (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.
    Italy
     
    • Liguria
      • La Spezia Province
        • Vara Valley
          • Borghetto Vara
    		[MinRec 32:211; Can.Min.:31:331-336.
    Japan
     
    • Shikoku Island
      • Ehime Prefecture
    		Minakawa (1995) Abstracts of the Meeting of the Mineralogical Society of Japan, 75.
    South Africa
     
    • Northern Cape Province
      • Kalahari manganese fields
        • Hotazel
    		Minerals of South Africa
        • N'Chwaning Mines
    		Minerals of South Africa
    Mineral and/or Locality
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