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Heulandite-Ca

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Prospect Park Quarry (Sowerbutt Quarry; Vandermade Quarry; Warren Brothers Quarry), Prospect Park, Passaic Co., New Jersey, USA
© 2008, JGW

Show Heulandite-Ca Photos (88)
Formula:
(Ca,Na)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
System:MonoclinicColour:White, Colorless, Red, ...
Lustre:Vitreous, PearlyHardness:3½ - 4
Name:Named after the English mineral collector, John Henry Heuland (1778-1856), a British mineral collector and dealer. And for its calcium content.


The calcium analogue of Heulandite-Ba, Heulandite-K, Heulandite-Na, and Heulandite-Sr. Clinoptilolite-Ca-Heulandite-Ca Series.

Classification of Heulandite-Ca

IMA status:Approved 1997
Explanation of status:Redefined by Zeolites Subcommittee 1997
Strunz 8th edition ID:8/J.23-10
Nickel-Strunz 10th (pending) edition ID:9.GE.05

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
E : Chains of T10O20 Tetrahedra
Dana 7th edition ID:77.1.4.1
Dana 8th edition ID:77.1.4.1

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites
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Type Occurrence of Heulandite-Ca

Type Locality:Strathclyde (Dunbartonshire), Scotland, UK

Occurrences of Heulandite-Ca

Geological Setting:Cavities in basalt and as a devitrification product from volcanic glasses.

Physical Properties of Heulandite-Ca

Lustre:Vitreous, Pearly
Diaphaneity (Transparency):Transparent
Comment:Pearly on cleavage {010}
Colour:White, Colorless, Red, Yellow, Brown, Green
Streak:White
Hardness (Mohs):3½ - 4
Tenacity:Brittle
Cleavage:Perfect
Perfect on the {010}
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):2.1 - 2.2 g/cm3
Density (calculated):2.17 g/cm3

Crystallography of Heulandite-Ca

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m {B1 1 2/m} {C2/m} {C1 2/m 1}
Cell Parameters:a = 7.435(7) Å, b = 16.84Å, c = 15.88Å
β = 91.433°
Ratio:a:b:c = 0.442 : 1 : 0.943
Unit Cell Volume:V 1,987.64 ų (Calculated from Unit Cell)
Z:2
Morphology:Coffin shaped tabular crystals, granular, massive
Twinning:{100} is twin and contact plane

Optical Data of Heulandite-Ca

Type:Biaxial (+)
RI values: nα = 1.491 - 1.505 nβ = 1.493 - 1.503 nγ = 1.500 - 1.512
2V:Measured: 10° to 48°
Maximum Birefringence:δ = 0.009

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

Chemical Properties of Heulandite-Ca

Formula:
(Ca,Na)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
Essential elements:Al, Ca, H, O, Si
All elements listed in formula:Al, Ca, H, Na, O, Si

Relationship of Heulandite-Ca to other Species

Series:Forms a series with Clinoptilolite-Ca (see here)
Common Associates:
DatoliteCalciteApophyllite
Related Minerals - Nickel-Strunz Grouping):

- +
9.GE.05Clinoptilolite-Ca
(Ca,Na,K)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Clinoptilolite-K
(K,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Clinoptilolite-Na
(Na,K,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Heulandite-K
(K,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Heulandite-Na
(Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Heulandite-Sr
(Sr,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
9.GE.05Heulandite-Ba
(Ba,Ca,K,Na,Sr)
 
5
Al
 
9
Si
 
27
O
 
72
·22H
 
2
O
9.GE.10Stilbite-Ca
NaCa
 
4
[Al
 
9
Si
 
27
O
 
72
] · nH
 
2
O
9.GE.10Stilbite-Na
Na
 
3
Ca
 
3
[Al
 
8
Si
 
28
O
 
72
]·nH
 
2
O
9.GE.15Barrerite
(Na,K,Ca
 
0.5
)
 
2
[Al
 
2
Si
 
7
O
 
18
] · 7H
 
2
O
9.GE.15Stellerite
Ca[Al
 
2
Si
 
7
O
 
18
] · 7H
 
2
O
9.GE.20Brewsterite-Ba
(Ba,Sr)[Al
 
2
Si
 
6
O
 
16
] · 5H
 
2
O
9.GE.20Brewsterite-Sr
(Sr,Ba,Ca)[Al
 
2
Si
 
6
O
 
16
] · 5H
 
2
O
Related Minerals - Dana Grouping):

- +
77.1.4.1Heulandite-K
(K,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
77.1.4.1Heulandite-Na
(Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
77.1.4.1Heulandite-Sr
(Sr,Na,Ca)
 
2-3
Al
 
3
(Al,Si)
 
2
Si
 
13
O
 
36
·12H
 
2
O
77.1.4.3Stilbite-Ca
NaCa
 
4
[Al
 
9
Si
 
27
O
 
72
] · nH
 
2
O
77.1.4.3Stilbite-Na
Na
 
3
Ca
 
3
[Al
 
8
Si
 
28
O
 
72
]·nH
 
2
O
77.1.4.5Barrerite
(Na,K,Ca
 
0.5
)
 
2
[Al
 
2
Si
 
7
O
 
18
] · 7H
 
2
O

Other Names for Heulandite-Ca

Other Languages:
Russian:Гейландит-Ca

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 Heulandite-Ca

Reference List:Merkle, A.B., and M. Slaughter (1968), Determination and refinement of the structure of heulandite: American Mineralogist: 53: 1120-1138.

Alberti, A. (1972), On the crystal structure of the zeolite heulandite: Tschermaks Mineralogische und Petrographische Mitteilungen: 18: 129-146.

Comodi, P., G.D. Gatta, & P.F. Zanazzi (2001), High-pressure structural behavior of heulandite: European Journal of Mineralogy: 15: 247-255.

Internet Links for Heulandite-Ca

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
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    Localities for Heulandite-Ca

    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.
    Austria
     
    • Styria
      • Koralpe Mts
        • Stainz
          • Marhof
    		Postl, W. et al. (2007)
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Doce valley
          • Divino das Laranjeiras
    		Rob Lavinsky
      • São Paulo
        • Pederneiras
    		Tested by Gunnar Färber
    Canada
     
    • Nova Scotia
      • Kings Co.
        • Bay of Fundy
    		Canadian Mineralogist Vol 38 pp. 1215-1232 (2000)
    Rob Lavinsky
    • Québec
      • Laurentides
        • Argenteuil RCM
          • Harrington
    		Van Velthuizen et al. (2006). Min. Record 37, 283
          • Wentworth
            • Laurel
    		Van Velthuizen et al. (2006) Mineral. Record 37, 283 [locality 48]; Tschernich, R. (1992): Zeolites of the World, p.52,255
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Hradec Králové Region
        • Jičín (Jitschin; Gitschin)
    		Zeman, M.: Zeolity melafyrů SV Čech. Minerál, 1996, roč. 4, č. 2, s. 107
      • Liberec Region
        • Železný Brod (Eisenbrod)
    		No reference listed
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Šumperk (Mährisch Schönberg)
          • Dolní Temenice
    		Novotný, P.: Minerály žil alpského typu v severovýchodní části Českého masivu. Zprávy Vlastivědného muzea v Olomouci, 2004, č. 281, s. 13-63.
          • Horni Temenice
    		Novotný, P.: Minerály žil alpského typu v severovýchodní části Českého masivu. Zprávy Vlastivědného muzea v Olomouci, 2004, č. 281, s. 13-63.
          • Kouty nad Desnou
    		Novotný, P.: Minerály žil alpského typu v severovýchodní části Českého masivu. Zprávy Vlastivědného muzea v Olomouci, 2004, č. 281, s. 13-63.
    Novotný, P., Zimák, J., Toegel, V.: Mineralizace alpského typu z lomu v Krásném u Šumperka. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2002, roč. 10, s. 259-264.
          • Sobotín (Zöptau; Zoeptau)
    		Novotný, P.: Minerály žil alpského typu v severovýchodní části Českého masivu. Zprávy Vlastivědného muzea v Olomouci, 2004, č. 281, s. 13-63.
          • Vikyrovice
    		Novotný, P.: Minerály žil alpského typu v severovýchodní části Českého masivu. Zprávy Vlastivědného muzea v Olomouci, 2004, č. 281, s. 13-63.
    France
     
    • Rhône-Alpes
      • Savoie
        • La Lauzière massif
          • Pussy
    		DE ASCENCAO GUEDES R., VALANGE S. et GABELICA Z. (2002). L’heulandite de La Gorraz, Pussy, massif de La Lauzière, Savoie. Le Règne Minéral n°45, pp. 18-21. Editions du Piat.
    Germany
     
    • Bavaria
      • Lower Bavaria
        • Bavarian Forest
          • Waldkirchen
            • Röhrnbach
    		Habel, M. (2009): Der Granodioritbruch der Fa. Josef Uhrmann OHG, Steinerleinbach bei Röhrnbach. Mineralien-Welt 20 (2), 66-86.
    • Lower Saxony
      • Harz Mts
        • St Andreasberg District
          • St Andreasberg
    		No reference listed
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Peine
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Salzgitter
        • Lengede
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Rhineland-Palatinate
      • Kusel
        • Rathsweiler
    		Weiss: "Mineralfundstellen, Deutschland West", 1990
    • Thuringia
      • Wurzbach
        • Weitisberga
    		Wittern: "Mineralfundorte in Deutschland", 2001
    Hungary
     
    • Baranya Co.
      • Mecsek Mts.
        • Magyaregregy
    		Mineral Species of Hungary, 2005
    Mineral Species of Hungary, 2005
    India
     
    • Maharashtra
    		www.johnbetts-fineminerals.com/jhbnyc/minsize.htm
      • Pune District (Poonah District)
        • Lonavale (Lonavala)
    		Min Rec 2007 38:185-189
    Ireland
     
    • Co. Galway
      • Connemara
    		Moreton, S. & Green, D.I. (2006) J. Russ. Soc., 9, p.90-2.
    Italy
     
    • Aosta Valley
      • Courmayeur
        • Monte Bianco Massif
          • Veny Valley
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    • Liguria
      • La Spezia Province
        • Levanto
    		Bracco R., Castellaro F., Kolitsch U. (2005): Levyna-Ca e altre zeoliti da Costa Sopramare, Levanto (La Spezia, Liguria). Micro, (notizie mineralogiche), 2/2005, 55-64.
    • Lombardy
      • Sondrio Province
        • Novate Mezzola
          • Codera Valley
    		Ghizzoni, S. & Mazzoleni, G. (2005): Itinerari mineralogici in val Codera. Geologia Insubrica, Ed., Milano, 316 pp.
    Ghizzoni, S. & Mazzoleni, G. (2005): Itinerari mineralogici in val Codera. Geologia Insubrica, Ed., Milano, 316 pp.
    Ghizzoni, S. & Mazzoleni, G. (2005): Itinerari mineralogici in val Codera. Geologia Insubrica, Ed., Milano, 316 pp.
    Ghizzoni, S. & Mazzoleni, G. (2005): Itinerari mineralogici in val Codera. Geologia Insubrica, Ed., Milano, 316 pp.
    Ghizzoni, S. & Mazzoleni, G. (2005): Itinerari mineralogici in val Codera. Geologia Insubrica, Ed., Milano, 316 pp.
    • Piedmont
      • Biella Province
        • Cervo Valley
    		Piccoli, G. C., Maletto, G., Bosio, P., & Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo F. Eusebio - Alba, 607 pag.
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d\'Aosta. Associazione Amici del Museo \"F. Eusebio\" Alba, Ed., Alba (Cuneo) 607 pp.
          • Rosazza
    		Piccoli, G. C., Maletto, G., Bosio, P., & Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo F. Eusebio - Alba, 607 pag.
      • Cuneo Province
        • Bagnolo Piemonte
          • Infernotto Valley
            • Ortieul
    		Piccoli, G. C., Maletto, G., Bosio, P., & Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo F. Eusebio - Alba, 607 pag.
      • Torino Province
        • Canavese District
          • Chiusella Valley
            • Traversella
    		Bianco, S., & Barresi, A. (2006). La cava di diorite "Tomaino" di Traversella. Osservazioni mineralogiche al 2005. MICRO (località), 2006, 141-160
        • Germanasca Valley
          • Prali
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
        • Luserna San Giovanni
    		Ambrino, P., Brizio, P., Ciriotti, M.E., Finello, G., Marello, B. (2009). Minerali della pietra di Luserna. AMI. CD-ROM (in italian and in english)
      • Verbano-Cusio-Ossola Province
        • Formazza Valley
          • Formazza
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo " F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
        • Ossola Valley
          • Antigorio Valley
            • Premia
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
          • Beura-Cardezza
    		Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d\'Aosta. Associazione Amici del Museo \"F. Eusebio\" Alba, Ed., Alba (Cuneo) 607 pp.
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d\'Aosta. Associazione Amici del Museo \"F. Eusebio\" Alba, Ed., Alba (Cuneo) 607 pp.
    • Trentino-Alto Adige
      • Trento Province
        • Fassa Valley
          • Buffaure Group
    		M.E. Ciriotti, 2006, probed
    • Veneto
      • Vicenza Province
        • Arzignano
          • Main Mt.
    		M. Boscardin (2002): \" Presenze Mineralogiche significative nei Lessini Vicentini - Studi e Ricerche- Associazione Amici del Museo- Museo Civico \"G. Zannato\" Montecchio Maggiore (VI). 15 Dicembre 2002, pp. 49-56.
        • Montorso Vicentino
          • Case Nori
    		- M.Boscardin (2002) -Presenze mineralogiche significative nei Lessini vicentini - Studi e Ricerche- Associazione Amici del Museo-Museo Civico "G.Zannato" Montecchio Maggiore (Vicenza) , pp 49 - 56.
        • Santorso
    		http://www.tron.vi.it/minerali/index.html
        • Schio
          • San Rocco di Tretto
    		Carbonin, S., Manzone, A., Boscardin, M., Pegoraro, S. : Zeoliti del
    Japan
     
    • Honshu Island
      • Kanto Region
        • Kanagawa Prefecture
          • Yugawara
    		Harada et al (1969) Chishitsugaku Zasshi, 75, 551-552.
    • Tokyo Prefecture
      • Ogasawara Islands
        • Chichijima Group
    		Mineralogical Journal Vol. 11 (1982) , No. 1 pp1-14
    Mexico
     
    • Chihuahua
      • Mun. de Batopilas
        • Andres del Rio District
    		Wilson, W. and Panczner, C., 1986, Batopilas, Mineralogical Record, v 17: 61-80.
    Norway
     
    • Akershus
      • Bærum (Baerum)
        • Fossum
    		Self collected by P. Andresen.
      • Nittedal
    		Nordrum, F.S. ; Larsen, A.O. & Erambert, M. (2003): Minerals of the heulandite series in Norway- a progress report. Norsk Bergverksmuseum skrift 25: 51-62
    • Aust-Agder
    		[minmax website]
        • Arendal Iron Mines
          • Neskilen (Næskil)
            • Neskilen Mines (Næskil Mines)
    		Nordrum, F.S. ; Larsen, A.O. & Erambert, M. (2003): Minerals of the heulandite series in Norway- a progress report. Norsk Bergverksmuseum skrift 25: 51-62
      • Evje og Hornnes
        • Flåt
    		Nordrum, F. S. ; Larsen, A. O. & Erambert, M. (2003): Minerals of the heulandite series in Norway - a progress report. Norsk Bergverksmuseum skrift 25: 51-62
    • Buskerud
      • Flesberg
        • Svene
          • Kongsberg Silver Mining District
    		Nordrum, F.S. ; Larsen, A.O. & Erambert, M. (2003): Minerals of the heulandite series in Norway- a progress report. Norsk Bergverksmuseum skrift 25: 51-62
            • Vinoren Silver Mine Field
              • Vinoren Southern Mines
    		Nordrum, F.S. ; Larsen, A.O. & Erambert, M. (2003): Minerals of the heulandite series in Norway- a progress report. Norsk Bergverksmuseum skrift 25: 51-62
      • Lier
        • Sylling
    		Nordrum, F.S. ; Larsen, A.O. & Erambert, M. (2003): Minerals of the heulandite series in Norway- a progress report. Norsk Bergverksmuseum skrift 25: 51-62 [with analysis on heulandite-Ca]
      • Nedre Eiker
    		Nordrum, F.S. ; Larsen, A.O. & Erambert, M. (2003): Minerals of the heulandite series in Norway- a progress report. Norsk Bergverksmuseum skrift 25: 51-62
      • Øvre Eiker
    		Nordrum, F.S. ; Larsen, A.O. & Erambert, M. (2003): Minerals of the heulandite series in Norway- a progress report. Norsk Bergverksmuseum skrift 25: 51-62
    • Hordaland
      • Osterøy
    		Nordrum, F. S. ; Larsen, A. O. & Erambert, M. (2003): Minerals of the heulandite series in Norway - a progress report. Norsk Bergverksmuseum skrift 25: 51-62
    • Nordland
      • Fauske
    		Nordrum, F. S. ; Larsen, A. O. & Erambert, M. (2003): Minerals of the heulandite series in Norway - a progress report. Norsk Bergverksmuseum skrift 25: 51-62
      • Grane
    		Nordrum, F. S. ; Larsen, A. O. & Erambert, M. (2003): Minerals of the heulandite series in Norway - a progress report. Norsk Bergverksmuseum skrift 25: 51-62
      • Sørfold
    		Husdal, T. (2008): The minerals of the pegmatites within the Tysfjord granite, northern Norway. Norsk Bergverksmuseum, skrift 38, 5-28.
    • Sogn og Fjordane
    		Nordrum, F. S. ; Larsen, A. O. & Erambert, M. (2003): Minerals of the heulandite series in Norway - a progress report. Norsk Bergverksmuseum skrift 25: 51-62
    • Sør-Trøndelag
      • Rennebu
    		Nordrum, F. S. ; Larsen, A. O. & Erambert, M. (2003): Minerals of the heulandite series in Norway - a progress report. Norsk Bergverksmuseum skrift 25: 51-62
    • Telemark
      • Kragerø
    		Nordrum, F.S. ; Larsen, A.O. & Erambert, M. (2003): Minerals of the heulandite series in Norway- a progress report. Norsk Bergverksmuseum skrift 25: 51-62
      • Porsgrunn
        • Mørje
          • Sagåsen (Strandåsen)
    		A. O. Larsen, A. Åsheim and R. A. Gault, 2005.
    • Vestfold
      • Larvik
        • Tjølling
          • Håkestad
    		Larsen, A. O. (2002): Zeolitter fra syenittpegmatittene i Oslofeltet. Bergverksmuseets Skrift 20, 60-65
    Larsen, A. O. (2002): Zeolitter fra syenittpegmatittene i Oslofeltet. Bergverksmuseets Skrift 20, 60-65
        • Tvedalen
    		Larsen, A. O. (2002): Zeolitter fra syenittpegmatittene i Oslofeltet. Bergverksmuseets Skrift 20, 60-65
    Collection of Peter Andresen.
    Larsen, A. O. (2002): Zeolitter fra syenittpegmatittene i Oslofeltet. Bergverksmuseets Skrift 20, 60-65
      • Re
        • Helland
    		Larsen, K. E. & Larsen, S. (2005): Mineralforekomster på Vestfold lavaplatå. Del 2: I B1-nivåets basalter. Bergverksmuseets skrift nr 30, 41-57
      • Sandefjord
        • Vesterøya
    		Nordrum, F.S. ; Larsen, A.O. & Erambert, M. (2003): Minerals of the heulandite series in Norway- a progress report. Norsk Bergverksmuseum skrift 25: 51-62
    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
          • Lovozero Massif
            • Seidozero Lake
    		Yakovenchuk, V.N., Pakhomovsky, Ya.A., Men’shikov, Yu.P., Mikhailova, J.A., and Ivanyuk, G.Yu. (2007): Canadian Mineralogist 45, 451-456.
    • Urals Region
      • Tyumenskaya Oblast'
        • Prepolar Ural
          • Saranpaul
    		[MinRec 30:465]
    South Africa
     
    • KwaZulu-Natal Province
      • Durban
        • Umhlatuzana valley
    		Tschernich, R.W. (1992). Zeolites of the World. Geoscience Press Inc.: Phoenix; Cairncross, B. & Dixon, R. (1995). Minerals of South Africa. Geological Society of South Africa: Linden; Heron, H.D.C. New analyses performed in 2004.
    Switzerland
     
    • Bern
      • Hasli Valley
        • Grimsel area
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
    • Grischun (Grisons; Graubünden)
      • Bregaglia Valley (Bergell)
        • Forno Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 215.
        • Promontogno
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 215.
        • Soglio
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 215.
      • Misox (Mesolcina Valley)
        • Calanca Valley
          • Arvigo
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
      • Vorderrhein Valley
        • Trun
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
        • Tujetsch (Tavetsch)
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
          • Milà Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
          • Sedrun
    		Jahn, S. (2008): Der Druntobel bei Sedrun - ein weltbekannter Fundort. Mienralien-Welt, 19 (3), 42-67.
          • Strem Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
    • Ticino (Tessin)
      • Leventina
        • Central St Gotthard Massif
          • Airolo
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
      • Maggia Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
    • Uri
      • Maderanertal
        • Etzli Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
      • Reuss Valley
        • Felli Valley
          • Schattig Wichel (Piz Giuv)
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
        • Rien Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
    • Wallis (Valais)
      • Binn Valley
        • Kriegalp Valley (Chriegalp Valley)
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
      • Goms
        • Fiesch
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.; American Mineralogist (1968), 53:1120-1138
      • Hérens Valley
        • Arolla Valley
          • Arolla
    		Stéphane Cuchet and Nicolas Meisser, Schweizer Strahler 1/2008, p.9-16
      • Lötschen valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
        • Lang glacier area
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
    Tanzania
     
    • Arusha Region
      • Lelatema Mts
    		Mineralogical Record (2009) 40:347-408
    UK
     
    • England
      • Cornwall
        • St Just District
          • Botallack - Pendeen Area
            • Botallack
              • Botallack Mine
    		J. Russell Socierty 2006, 68-71
    • Northern Ireland
      • Co. Down
        • Mourne Mts
          • Newcastle
    		Green, D.I., Bell, R. & Moreton, S. (2005) UK J. Mines & Minerals, No. 25, p.25-30.
    • Scotland
    		Brooke H J (1822) On the comptonite of Vesuvius, the brewsterite of Scotland, the stilbite and the heulandite, Edinburgh Philosophy Journal, 6, 112-115
    Ukraine
     
    • Crimea Oblast'
      • Crimea peninsula
        • Balaklava area
    		Dobrovolskaya T.I., Polkanov Y.A. The Paleovolcano Fiolent. Giude (2004) - Simferopol, 2004, 19 p. (in Russ.) Oleg V. Zinchenko at al. (2008).The mineralogy of seasonal sulfates in the cape Fiolent - Zapiski Ukrainskogo Mineralogichnogo Tovaristva (Proceeding Ukrainian Mineralogical Society), 2008, #5, p. 75-83 (in Ukr.)
    Tischenko A. data
      • Simferopol area
    		Tischenko Alexander
        • Ukrainka (Kurtsy) village
    		- Dvoichenko P.A. The minerals of Crimea (1914) - Zapiski Krymskogo obshchestva estestvoispytatelei (Proceeding of the Crimea Society of Naturalistes), 1914, vol. 4, p. 1-208 (Rus.) - Popov S.P. Mineralogy of the Crimea (1938). - M.-L., AN SSSR, 1938, 352 p. (Rus.)
    USA
     
    • Colorado
      • Jefferson Co.
        • Golden District
          • Golden
    		Rocks & Minerals 79:4
    Rocks & Minerals 79:4
    • Hawaii
      • Honolulu Co.
        • Oahu Island
    		Dunham, K.C. (1933) The American Mineralogist, 18, 369-385.
    • Idaho
      • Custer Co.
    		Rocks & Minerals (March, 2001)
    Idaho Minerals (2004) L. Ream 2nd ed
    • Michigan
      • Houghton Co.
        • Houghton
    		Mineralogy of Michigan (2004) Heinrich & Robinson
    • New Jersey
      • Passaic Co.
        • Paterson
    		Rob Lavinsky photo
        • Prospect Park
    		http://rruff.info/index.php/r=sample_detail/sample_id=21/sample_search_id=ljmWWUIjwBmqgvPyDuhvjyWK
    • New York
      • New York City
        • Queens (Queens Co.)
          • Woodside
    		Jeff Weissman specimen
      • Westchester Co.
    		New York State Museum mineral collection; specimen number 438.6
    Leonard S.Wiener and Sigrid Ballew,1995, Updated by Kenny Gay,2006, A Listing Of North Carolina Minerals,Geologic Note No.4
      • Catawba Co.
        • Hickory
    		Kenny Gay - North Carolina Geological Survey
      • Guilford Co.
        • Jamestown
    		Kenny Gay - North Carolina Geological Survey
      • Rowan Co.
        • Woodleaf
    		Kenny Gay - North Carolina Geological Survey
    • Oregon
      • Clackamas Co.
        • Clackamas River Localities
    		Micro Probe Volume IX Number 3 Spring 2001
      • Jackson Co.
        • Lost Creek Reservoir
    		Phyllis Richardson
    Phyllis Richardson
    • Rhode Island
      • Providence Co.
        • Lincoln
          • Lime Rock
    		Michael W. Kieron collection
      • Washington Co.
        • Westerly
          • Bradford
    		Michael W. Kieron collection
    Mineral and/or Locality
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