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Panunzite

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Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy
© OT. Ljostad

Show Panunzite Photos (2)
Formula:
(Na,K)[AlSiO
 
4
]
System:Hexagonal
This page provides mineralogical data about Panunzite.

Classification of Panunzite

IMA status:Approved 1978
Strunz 8th edition ID:8/J.02-40
Nickel-Strunz 10th (pending) edition ID:9.FA.05

9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
A : Tektosilicates without additional non-tetrahedral anions
Dana 8th edition ID:76.2.1.4

76 : TECTOSILICATES Al-Si Framework
2 : Al-Si Framework Feldspathoids and related species
Hey's CIM Ref.:16.4.2

16 : Silicates Containing Aluminum and other Metals
4 : Aluminosilicates of Na and K
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Type Occurrence of Panunzite

Type Locality:Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy
Year of Discovery:1985

Crystallography of Panunzite

Crystal System:Hexagonal
Cell Parameters:a = 20.51Å, b = 8.55Å
Ratio:a:b = 2.399 : 1
Unit Cell Volume:V 0.00 ų (Calculated from Unit Cell)

Optical Data of Panunzite

Type:Uniaxial (-)
RI values: nω = 1.540 nε = 1.535
Maximum Birefringence:δ = 0.005

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

Chemical Properties of Panunzite

Formula:
(Na,K)[AlSiO
 
4
]
Essential elements:Al, Na, O, Si
All elements listed in formula:Al, K, Na, O, Si
Common Impurities:Fe,Mg,Ca,Sr,Ba,Rb,H2O

Relationship of Panunzite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.FA.05Kaliophilite
K[AlSiO
 
4
]
9.FA.05Kalsilite
K[AlSiO
 
4
]
9.FA.05Nepheline
(Na,K)[AlSiO
 
4
]
9.FA.05Trikalsilite
(Na,K)[AlSiO
 
4
]
9.FA.05Yoshiokaite
(Ca,Na)[Al(Al,Si)O
 
4
]
9.FA.05Megakalsilite
KAlSiO
 
4
9.FA.10Malinkoite
NaBSiO
 
4
9.FA.15Virgilite
LiAlSi
 
2
O
 
6
9.FA.25Lisitsynite
KBSi
 
2
O
 
6
9.FA.30Adularia
KAlSi
 
3
O
 
8
9.FA.30Anorthoclase
(Na,K)[AlSi
 
3
O
 
8
]
9.FA.30Buddingtonite
(NH
 
4
)[AlSi
 
3
O
 
8
]
9.FA.30Celsian
Ba[Al
 
2
Si
 
2
O
 
8
]
9.FA.30Hyalophane
(K,Ba)[Al(Si,Al)Si
 
2
O
 
8
]
9.FA.30Microcline
K[AlSi
 
3
O
 
8
]
9.FA.30Orthoclase
K[AlSi
 
3
O
 
8
]
9.FA.30Sanidine
K[AlSi
 
3
O
 
8
]
9.FA.30Rubicline
(Rb,K)[AlSi
 
3
O
 
8
]
9.FA.30Monalbite
Na[AlSi
 
3
O
 
8
]
9.FA.35Albite
Na[AlSi
 
3
O
 
8
]
9.FA.35Andesine
(Na,Ca)[Al(Si,Al)Si
 
2
O
 
8
]
9.FA.35Anorthite
Ca[Al
 
2
Si
 
2
O
 
8
]
9.FA.35Bytownite
(Ca,Na)[Al(Al,Si)Si
 
2
O
 
8
]
9.FA.35Labradorite
(Ca,Na)[Al(Al,Si)Si
 
2
O
 
8
]
9.FA.35Oligoclase
(Na,Ca)[Al(Si,Al)Si
 
2
O
 
8
]
9.FA.35Reedmergnerite
Na[BSi
 
3
O
 
8
]
9.FA.40Paracelsian
Ba[Al
 
2
Si
 
2
O
 
8
]
9.FA.45Svyatoslavite
Ca[Al
 
2
Si
 
2
O
 
8
]
9.FA.45Kumdykolite
NaAlSi
 
3
O
 
8
9.FA.50Slawsonite
(Sr,Ca)[Al
 
2
Si
 
2
O
 
8
]
9.FA.55Lisetite
CaNa
 
2
Al
 
4
Si
 
4
O
 
16
9.FA.60Banalsite
BaNa
 
2
[Al
 
2
Si
 
2
O
 
8
]
 
2
9.FA.60Stronalsite
SrNa
 
2
[Al
 
2
Si
 
2
O
 
8
]
 
2
9.FA.65Danburite
CaB
 
2
Si
 
2
O
 
8
9.FA.65Maleevite
BaB
 
2
Si
 
2
O
 
8
9.FA.65Pekovite
SrB
 
2
Si
 
2
O
 
8
9.FA.70Lingunite
(Na,Ca)AlSi
 
3
O
 
8
9.FA.75Kokchetavite
KAlSi
 
3
O
 
8
Related Minerals - Hey's Index Grouping:

- +
16.4.1Nepheline
(Na,K)[AlSiO
 
4
]
16.4.3Trikalsilite
(Na,K)[AlSiO
 
4
]
16.4.4Anorthoclase
(Na,K)[AlSi
 
3
O
 
8
]
16.4.5Naujakasite
(Na,K)
 
6
(Fe
2+
 
,Mn
2+
 
,Ca)(Al,Fe)
 
4
Si
 
8
O
 
26
16.4.6Montesommaite
(K,Na)
 
9
Al
 
9
Si
 
23
O
 
64
·10H
 
2
O

Other Names for Panunzite

Synonyms:
IMA1978-050
Other Languages:
German:Panunzit
Russian:Панунцит
Spanish:Panunzita

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 Panunzite

Reference List:American Mineralogist (1957): 42: 286.

American Mineralogist (1979): 64: 658.

Merlino S., Franco E., Mattia C.A., Pasero M., De Gennaro M.(1985) : The crystal structure of panunzite (natural tetrakalsilite). Neues Jahrbuch für Mineralogie, Monatshefte: 7: 322-328.

American Mineralogist (1988): 73: 420-421.

Internet Links for Panunzite

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  • Raman and XRD data at RRUFF project
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  • Panunzite details from Handbook of Mineralogy (PDF)
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    Localities for Panunzite

    Hide Locality List
    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.
    (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
     
    • Campania
      • Naples Province
        • Somma-Vesuvius Complex
    		[Amer.Min.(1988) 73, 420-421; Lapis 1994:5 p.13-23,58]
    • Umbria
      • Terni Province
        • Marsciano
          • San Venanzo
    		Ciriotti, M.E., Fascio, L., Pasero, M. (2004): Italian Type Minerals. Felici, Ed. Pisa, CD-ROM
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 10th Oct 2009 04:16:21