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Minguzzite

Formula:
K
 
3
Fe
3+
 
[C
 
2
O
 
4
]
 
3
 · 3H
 
2
O
System:MonoclinicColour:Green, yellow-green
Lustre:Vitreous
Name:For Italian mineralogist, Carlo Minguzzi (1910-1953).
This page provides mineralogical data about Minguzzite.

Classification of Minguzzite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:9/A.01-60
Nickel-Strunz 10th (pending) edition ID:10.AB.25

10 : ORGANIC COMPOUNDS
A : Salts of organic acids
B : Oxalates
Dana 8th edition ID:50.1.4.1

50 : ORGANIC COMPOUNDS
1 : Oxalates
Hey's CIM Ref.:31.1.10

31 : Oxalates, Citrates, Mellitates and Acetates
1 : Oxalates
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Type Occurrence of Minguzzite

Co-type Localities:Cape Calamita Mine (Calamita Mine), Capoliveri, Elba Island, Livorno Province, Tuscany, Italy
Vallone stope, Cape Calamita Mine (Calamita Mine), Capoliveri, Elba Island, Livorno Province, Tuscany, Italy
Year of Discovery:1955

Physical Properties of Minguzzite

Lustre:Vitreous
Colour:Green, yellow-green

Crystallography of Minguzzite

Crystal System:Monoclinic

Optical Data of Minguzzite

Type:Biaxial (-)
RI values: nα = 1.498 - 1.501 nβ = 1.554 - 1.555 nγ = 1.594 - 1.597
2V:Measured: 78° , Calculated: 76° to 80°
Maximum Birefringence:δ = 0.096

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

Chemical Properties of Minguzzite

Formula:
K
 
3
Fe
3+
 
[C
 
2
O
 
4
]
 
3
 · 3H
 
2
O
Essential elements:C, Fe, H, K, O
All elements listed in formula:C, Fe, H, K, O

Relationship of Minguzzite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
10.AB.05Humboldtine
Fe[C
 
2
O
 
4
] · 2H
 
2
O
10.AB.05Lindbergite
Mn
2+
 
[C
 
2
O
 
4
] · 2H
 
2
O
10.AB.10Glushinskite
Mg[C
 
2
O
 
4
] · 2H
 
2
O
10.AB.15Moolooite
Cu[C
 
2
O
 
4
]·0.4H
 
2
O
10.AB.20Stepanovite
NaMgFe
3+
 
[C
 
2
O
 
4
]
 
3
 · 8-9H
 
2
O
10.AB.30Wheatleyite
Na
 
2
Cu[C
 
2
O
 
4
]
 
2
 · 2H
 
2
O
10.AB.35Zhemchuzhnikovite
NaMg(Fe
3+
 
,Al)[C
 
2
O
 
4
]
 
3
 · 8H
 
2
O
10.AB.40Weddellite
Ca[C
 
2
O
 
4
] · 2H
 
2
O
10.AB.45Whewellite
Ca[C
 
2
O
 
4
] · H
 
2
O
10.AB.50Caoxite
Ca[C
 
2
O
 
4
] · 3H
 
2
O
10.AB.55Oxammite
(NH
 
4
)
 
2
[C
 
2
O
 
4
] · H
 
2
O
10.AB.60Natroxalate
Na
 
2
[C
 
2
O
 
4
]
10.AB.65Coskrenite-(Ce)
(Ce,Nd,La)
 
2
[(SO
 
4
)
 
2
|C
 
2
O
 
4
] · 12H
 
2
O
10.AB.70Levinsonite-(Y)
(Y,Nd,La)Al(SO
 
4
)
 
2
(C
 
2
O
 
4
)·12H
 
2
O
10.AB.75Zugshunstite-(Ce)
(Ce,Nd,La)Al(SO
 
4
)
 
2
(C
 
2
O
 
4
)·12H
 
2
O
10.AB.80Novgorodovaite
Ca
 
2
[Cl
 
2
|C
 
2
O
 
4
] · 2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
31.1.1Oxammite
(NH
 
4
)
 
2
[C
 
2
O
 
4
] · H
 
2
O
31.1.2Moolooite
Cu[C
 
2
O
 
4
]·0.4H
 
2
O
31.1.3Wheatleyite
Na
 
2
Cu[C
 
2
O
 
4
]
 
2
 · 2H
 
2
O
31.1.4Glushinskite
Mg[C
 
2
O
 
4
] · 2H
 
2
O
31.1.5Whewellite
Ca[C
 
2
O
 
4
] · H
 
2
O
31.1.6Weddellite
Ca[C
 
2
O
 
4
] · 2H
 
2
O
31.1.7Humboldtine
Fe[C
 
2
O
 
4
] · 2H
 
2
O
31.1.8Stepanovite
NaMgFe
3+
 
[C
 
2
O
 
4
]
 
3
 · 8-9H
 
2
O
31.1.9Zhemchuzhnikovite
NaMg(Fe
3+
 
,Al)[C
 
2
O
 
4
]
 
3
 · 8H
 
2
O

Other Names for Minguzzite

Other Languages:
German:Minguzzit
Spanish:Minguzzita

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 Minguzzite

Reference List:American Mineralogist (1956): 41: 370.

Bulletin de Mineralogie (1958): 81: 245-256.

Articles/Blogs about Minguzzite

Internet Links for Minguzzite

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  • Raman and XRD data at RRUFF project
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    Localities for Minguzzite

    (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
     
    • Tuscany
      • Livorno Province
        • Elba Island
          • Capoliveri
    		Atti Accad.Lincei.Rend.Cl.Sci.fis.mat.nat., Roma (1955) ser.8, 18, 392-402
    C.L. Garavelli (1955) – Un nuovo minerale tra i prodotti secondari del giacimento di Capo Calamita (Isola d ' Elba). – Atti Acc. Naz. Lincei, Rend., v.18, s.8, f.4: 392-402.
    Mineral and/or Locality
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