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Mozartite

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Big Photo

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

Show Mozartite Photos (10)



Formula:
CaMn
3+
 
(SiO
 
4
)(OH)
System:OrthorhombicColour:Reddish brown to deep red
Hardness:6
Name:
For Wolfgang Amadeus Mozart (27 January 1756 – 5 December 1791), was a prolific and influential composer of the Classical era. Mineral was discovered 200 years after his death.
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
Geological Setting of type material:Manganese deposit in ophiolitic metachert.
Associated Minerals at type locality:
QuartzPectoliteHausmanniteCalcite

Physical Properties of Mozartite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Reddish brown to deep red
Streak:Red
Hardness (Mohs):6
Tenacity:Brittle
Fracture:Conchoidal
Density (measured):3.63(4) g/cm3
Density (calculated):3.68 g/cm3

Crystallography of Mozartite

Crystal System:Orthorhombic
Class (H-M):2 2 2 - Disphenoidal
Space Group:P21 21 21
Cell Parameters:a = 5.838(1) Å, b = 7.224(1) Å, c = 8.690(1) Å
Ratio:a:b:c = 0.808 : 1 : 1.203
Unit Cell Volume:V 366.49 ų (Calculated from Unit Cell)
Z:4
Morphology:Subhedral crystals, short prismatic

Optical Data of Mozartite

Type:Biaxial (+)
RI values: nα = 1.840(5) nβ = 1.855(5) nγ = 1.920(5)
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
Pleochroism:Strong
Comments:X= yellow-brown
Y= yellow
Z= red-orange

Chemical Properties of Mozartite

Formula:
CaMn
3+
 
(SiO
 
4
)(OH)
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
(SiO
 
4
)O
 
8
9.AG.05Braunite
Mn
2+
 
Mn
3+
6
(SiO
 
4
)O
 
8
9.AG.05Neltnerite
CaMn
3+
6
(SiO
 
4
)O
 
8
9.AG.05Braunite-II
CaMn
3+
14
(SiO
 
4
)O
 
20
9.AG.10Långbanite
(Mn
2+
 
,Ca)
 
4
(Mn
3+
 
,Fe
3+
 
)
 
9
Sb
5+
 
(SiO
 
4
)
 
2
O
 
16
9.AG.15Malayaite
CaSn(SiO
 
4
)O
9.AG.15Titanite
CaTi(SiO
 
4
)O
9.AG.15Vanadomalayaite
CaV
4+
 
(SiO
 
4
)O
9.AG.20Cerite-(Ce)
(Ce,Ca)
 
9
(Fe,Mg)(SiO
 
4
)
 
3
(HSiO
 
4
)
 
4
(OH)
 
3
9.AG.20Cerite-(La)
(La,Ce,Ca)
 
9
(Fe,Ca,Mg)(SiO
 
4
)
 
3
(HSiO
 
4
)
 
4
(OH)
 
3
9.AG.20Aluminocerite-(Ce)
(Ce,La,Ca)
 
9
(Al,Fe
3+
 
)(SiO
 
4
)
 
3
(HSiO
 
4
)
 
4
(OH)
 
3
9.AG.25Trimounsite-(Y)
Y
 
2
Ti
 
2
(SiO
 
4
)O
 
5
9.AG.25Yftisite-(Y)
(Y,Dy,Er)
 
4
(Ti,Sn)(SiO
 
4
)
 
2
O(F,OH)
 
6
9.AG.30Sitinakite
KNa
 
2
Ti
 
4
(SiO
 
4
)
 
2
O
 
5
(OH) · 4H
 
2
O
9.AG.35Kittatinnyite
Ca
 
2
Mn
 
2
Mn(SiO
 
4
)
 
2
(OH)
 
4
 · 9H
 
2
O
9.AG.40aNatisite
Na
 
2
Ti(SiO
 
4
)O
9.AG.40bParanatisite
Na
 
2
Ti(SiO
 
4
)O
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
(SiO
 
4
)(OH)
 
4
9.AG.60Vuagnatite
CaAl(SiO
 
4
)(OH)
9.AG.65Hatrurite
Ca
 
3
(SiO
 
4
)O
9.AG.70Jasmundite
Ca
 
11
(SiO
 
4
)
 
4
O
 
2
S
9.AG.75Afwillite
Ca
 
3
(HSiO
 
4
)
 
2
 · 2H
 
2
O
9.AG.80Bultfonteinite
Ca
 
2
(HSiO
 
4
)F · H
 
2
O
9.AG.85Zoltaiite
BaV
4+
2
V
3+
12
(SiO
 
4
)
 
2
O
 
19
9.AG.90Tranquillityite
(Fe
2+
 
,Ca)
 
8
(Zr,Y)
 
2
Ti
 
3
(SiO
 
4
)
 
3
O
 
4

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.

Internet Links for Mozartite

Search Engines:
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    • External Links:
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  • Look for Mozartite on Athena Mineralogy
  • Look for Mozartite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mozartite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Find Mozartite on www.crystalclassics.co.uk
  • SpiriferMinerals.com - high quality low prices
  • Fine Minerals from Weinrich Minerals, Inc.
  • The Arkenstone - Fine Minerals
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  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
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    • Specimens:The following Mozartite specimens are currently listed for sale on minfind.com.
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    • Localities for Mozartite

    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.
    India
     
    • Maharashtra
    		Van King
    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
        • Kuruman
          • N'Chwaning Mines
    		Minerals of South Africa
    Mineral and/or Locality
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