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Paranatrolite

Big Photo

Schellkopf Mt., Brenk, Niederzissen, Eifel Mts, Rhineland-Palatinate, Germany
© Arliguie M

Formula:
Na
 
2
Al
 
2
Si
 
3
O
 
10
·3H
 
2
O
Colour:Colourless, gray, pale ...Hardness:5 - 5½


Zeolite Group. Natrolite Subgroup.

Paranatrolite is another natrolite analog with a high water content (Chao 1980; Ross et al. 1992). Paranatrolite is reported to transform to tetranatrolite upon exposure to the atmosphere after removal from its aqueous environment (Chao 1980; Lee et al. 2006; Seryotkin & Bakakin, 2007).

The dehydration of paranatrolite to tetranatrolite has been believed to be irreversible, but Seryotkin & Bakakin (2007) showed that it can be reversible. Paranatrolite to tetranatrolite transformation is also reversible through pressure-induced hydration. Paranatrolite is indeed a distinct mineral species, which can be formed at high pressure either from natrolite or tetranatrolite with a stability field that varies with composition (Lee et al. 2006).

Classification of Paranatrolite

IMA status:Approved
Nickel-Strunz 10th (pending) edition ID:9.GA.05

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
A : Zeolites with T5O10 Units – The Fibrous Zeolites
Dana 8th edition ID:77.1.5.3

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites
Hey's CIM Ref.:16.2.7

16 : Silicates Containing Aluminum and other Metals
2 : Aluminosilicates of Na
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Type Occurrence of Paranatrolite

Type Locality:Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville Co., Québec, Canada
Year of Discovery:1980

Physical Properties of Paranatrolite

Lustre:Greasy
Colour:Colourless, gray, pale yellow, pale pink
Hardness (Mohs):5 - 5½

Chemical Properties of Paranatrolite

Formula:
Na
 
2
Al
 
2
Si
 
3
O
 
10
·3H
 
2
O
Essential elements:Al, H, Na, O, Si
All elements listed in formula:Al, H, Na, O, Si
Common Impurities:Ca,K

Relationship of Paranatrolite to other Species

Related to:
  • Natrolite Subgroup
    • Related Minerals - Nickel-Strunz Grouping):
    9.GA.05Gonnardite
    Na
     
    2
    		Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    2
    		 · 7H
     
    2
    		O
    9.GA.05Mesolite
    Na
     
    2
    		Ca
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    3
    		 · 8H
     
    2
    		O
    9.GA.05Natrolite
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
    9.GA.05Scolecite
    Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 3H
     
    2
    		O
    9.GA.10Thomsonite-Ca
    NaCa
     
    2
    		[Al
     
    5
    		Si
     
    5
    		O
     
    20
    		] · 6H
     
    2
    		O
    9.GA.10Thomsonite-Sr
    (Sr,Ca)
     
    2
    		Na[Al
     
    5
    		Si
     
    5
    		O
     
    20
    		]·7H
     
    2
    		O
    9.GA.15Edingtonite
    Ba[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 4H
     
    2
    		O
    9.GA.15Kalborsite
    K
     
    6
    		[Cl|B(OH)
     
    4
    		|Al
     
    4
    		Si
     
    6
    		O
     
    20
    		]
    Related Minerals - Hey's Index Grouping:
    16.2.1Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    16.2.2Analcime
    Na
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
    16.2.3Ussingite
    Na
     
    2
    		AlSi
     
    3
    		O
     
    8
    		OH
    16.2.4Paragonite
    NaAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    16.2.5Natrolite
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
    16.2.6Tetranatrolite
    16.2.8Ephesite
    NaLiAl
     
    2
    		[(OH)
     
    2
    		|Al
     
    2
    		Si
     
    2
    		O
     
    10
    		]
    16.2.9Rectorite
    (Na,Ca)Al
     
    4
    		(Si,Al)
     
    8
    		O
     
    20
    		(OH)
     
    4
    		·2H
     
    2
    		O
    16.2.10Jadeite
    Na(Al,Fe
    3+
     
    		)[Si
     
    2
    		O
     
    6
    		]
    16.2.11Brammallite
    Na
     
    0.65
    		Al
     
    2.0
    		ٱAl
     
    0.65
    		Si
     
    3.35
    		O
     
    10
    		(OH)
     
    2

    Other Names for Paranatrolite

    Synonyms:
    IMA1978-017
    German names:
    Paranatrolit
    Russian names:
    Паранатролит
    Spanish names:
    Paranatrolita

    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 Paranatrolite

    Reference List:Chao, G.Y. (1980) Paranatrolite a new zeolite from mont St-Hilaire, Quebec. Canadian Mineralogist: 18: 85-88.

    American Mineralogist (1981): 66: 1276-1277.

    European Journal of Mineralogy (1995): 7: 501.

    Evans, H.T., Konnert, J.A., and Ross, M. (2000) The crystal structure of tetranatrolite from Mont Saint-Hilaire, Quebec, and its chemical and structural relationship to paranatrolite and gonnardite. American Mineralogist: 85: 1808-1815.

    Seryotkin, Y.V., Bakakin, V.V., and Belitsky, I.A. (2004) The crystal structure of paranatrolite. European Journal of Mineralogy: 16: 545-550.

    Lee, Y., Hriljac, J.H., Parise, J.B., and Vogt, T. (2005a) Pressure-induced stabilization of ordered paranatrolite: A new insight into the paranatrolite controversy. American Mineralogist: 90: 252-257.

    Lee, Yongjae, Hriljac, Joseph A., Parise, John B., and Vogt, Thomas (2006) Pressure-induced hydration in zeolite tetranatrolite. American Mineralogist: 91: 247-251.

    Seryotkin, Yu,V. & Bakakin, V.V. (2007): The reversibility of the paranatrolite-tetranatrolite transformation. European Journal of Mineralogy, 19, 593-598.

    Internet Links for Paranatrolite

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

    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.
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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.
    Austria
     
    • Styria
      • Bad Radkersburg
        • Klöch
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Canada
     
    • Québec
      • Rouville Co.
        • Mont Saint-Hilaire
    		Chao, G.Y. (1980), Paranatrolite, a new zeolite from Mont St-Hilaire, Quebec. Canadian Mineralogist: 18: 85-88; Tschernich, R. (1992): Zeolites of the World, p.52,394
      • Verchères Co.
        • Varennes & St-Amable
          • Saint-Amable sill
    		Mineralogical Record: 29: 83.
    Germany
     
    • Bavaria
      • Franconia
        • Fichtelgebirge
          • Marktredwitz
            • Pechbrunn
    		Weiss: "Mineralfundstellen, Deutschland West", 1990
          • Selb
            • Längenau
    		Keck, E. (2008): Der Wartberg bei Längenau, nordöstlich von Selb, in Oberfranken. Aufschluss 59, 109-128.
        • Maroldsweisach
    		Wittern: "Mineralfundorte in Deutschland", 2001
    • Rhineland-Palatinate
      • Eifel Mts
        • Niederzissen
          • Brenk
    		Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München, 1983
    Hungary
     
    • Veszprém Co.
      • Tapolcai Basin
        • Uzsabánya
    		Szakáll & Jánosi: Minerals of Hungary, 1995
    Szakáll & Jánosi: Minerals of Hungary, 1995
        • Zalahaláp
    		Szakáll & Jánosi: Minerals of Hungary, 1995
    Russia
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		Pekov, I.V. & Podlesnyi, A.S. (2004): Kukisvumchorr Deposit: Mineralogy of Alkaline Pegmatites and Hydrotermalites. Mineralogical Almanac, vol. 7, 140 pages + xxiv photo's pages
    www.koeln.netsurf.de/~w.steffens/lovo.htm
    • Urals Region
      • Chelyabinsk Oblast'
        • Vishnevye Mts
    USA
     
    • New Mexico
      • Colfax Co.
        • Springer
          • Point of Rocks Mesa (Pecks Mesa)
    		Rocks & Min.: 60:229.
    Mineral and/or Locality
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