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Heulandite-K

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Heulandite-K

Kamfjord Quarry, Vesterøya, Sandefjord, Vestfold, Norway
Heulandite-K

Contrada Lovati, San Rocco di Tretto, Tretto, Schio, Vicenza Province, Veneto, Italy
Heulandite-K

Contrada Segani, Segàn Mt., San Bortolo di Arzignano, Vicenza Province, Veneto, Italy
Heulandite-K

Kamfjord Quarry, Vesterøya, Sandefjord, Vestfold, Norway
Heulandite-K

Contrada Lovati, San Rocco di Tretto, Tretto, Schio, Vicenza Province, Veneto, Italy
Heulandite-K

Contrada Segani, Segàn Mt., San Bortolo di Arzignano, Vicenza Province, Veneto, Italy
Heulandite-K

Kamfjord Quarry, Vesterøya, Sandefjord, Vestfold, Norway
Heulandite-K

Contrada Lovati, San Rocco di Tretto, Tretto, Schio, Vicenza Province, Veneto, Italy
Formula:
(K,Ca,Na)5(Si27Al9)O72 · 26H2O
System:
Monoclinic
Colour:
White, Colorless, Red, ...
Lustre:
Vitreous, Pearly
Hardness:
3 - 3½
Name:
Named in 1822 by Henry James Brooke in honor of Johann Heinrich "John Henry" Heuland [March 21, 1778 Beyreuth, Germany - November 16, 1856 Hastings, Sussex, England, UK], a mineral collector and mineral dealer living in England and for the suffix indicating dominant K. Despite having an international reputaion, there are no known images of Henry Heuland.
The potassium analogue of Heulandite-Ba, Heulandite-Ca, Heulandite-Na, and Heulandite-Sr. Clinoptilolite-K-Heulandite-K Series.


Classification of Heulandite-K

IMA status:
Approved
Strunz 8th ed.:
8/J.23-08
Nickel-Strunz 10th (pending) ed.:
9.GE.05

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

Physical Properties of Heulandite-K

Lustre:
Vitreous, Pearly
Diaphaneity (Transparency):
Transparent
Colour:
White, Colorless, Red, Yellow, Brown, Green
Streak:
White
Hardness (Mohs):
3 - 3½
Tenacity:
Brittle
Cleavage:
Perfect
perfect on the {010}

Optical Data of Heulandite-K

Type:
Biaxial (+)
RI values:
nα = 1.476 - 1.506 nβ = 1.479 - 1.510 nγ = 1.479 - 1.517
2V:
Measured: 10° to 48°
Max Birefringence:
δ = 0.003 - 0.011
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v

Chemical Properties of Heulandite-K

Formula:
(K,Ca,Na)5(Si27Al9)O72 · 26H2O
Elements listed in formula:
Al, Ca, H, K, Na, O, Si - search for minerals with similar chemistry

Crystallography of Heulandite-K

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Space Group Setting:
C2/m
Cell Parameters:
a = 17.636 Å, b = 17.934 Å, c = 7.397 Å
β = 116.0°
Ratio:
a:b:c = 0.983 : 1 : 0.412
Unit Cell Volume:
V 2,102.78 ų (Calculated from Unit Cell)
Z:
2

Type Occurrence of Heulandite-K

Type Locality:
Near Albero Bassi locality, Santorso, Vicenza Province, Veneto, Italy

Relationship of Heulandite-K to other Species

Series:
Forms a series with Clinoptilolite-K (see here)
Member of:
Heulandite Group > Zeolite Group
Other Members of Group:
Heulandite-Ba(Ba,Ca,K)5(Si27Al9)O72 · 22H2O
Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
Heulandite-Na(Na,Ca,K)6(Si,Al)36O72 · 22H2O
Heulandite-Sr(Sr,Na,Ca)5(Si27Al9)O72 · 24H2O
Related Minerals - Nickel-Strunz Grouping):
9.GE.05Clinoptilolite-CaCa3(Si30Al6)O72 · 20H2O
9.GE.05Clinoptilolite-KK6(Si30Al6)O72 · 20H2O
9.GE.05Clinoptilolite-NaNa6(Si30Al6)O72 · 20H2O
9.GE.05Heulandite-Ca(Ca,Na,K)5(Si27Al9)O72 · 26H2O
9.GE.05Heulandite-Na(Na,Ca,K)6(Si,Al)36O72 · 22H2O
9.GE.05Heulandite-Sr(Sr,Ca,Na)5(Si27Al9)O72 · 24H2O
9.GE.05Heulandite-Ba(Ba,Ca,K)5(Si27Al9)O72 · 22H2O
9.GE.10Stilbite-CaNaCa4(Si27Al9)O72 · 28H2O
9.GE.10Stilbite-NaNa9(Si27Al9)O72 · 28H2O
9.GE.15BarreriteNa2(Al2Si7)O18 · 6H2O
9.GE.15StelleriteCa4(Si28Al8)O72 · 28H2O
9.GE.20Brewsterite-BaBa(Al2Si6)O16 · 5H2O
9.GE.20Brewsterite-SrSr(Al2Si6)O16 · 5H2O
Related Minerals - Dana Grouping):
77.1.4.1Heulandite-Ca(Ca,Na,K)5(Si27Al9)O72 · 26H2O
77.1.4.1Heulandite-Na(Na,Ca,K)6(Si,Al)36O72 · 22H2O
77.1.4.1Heulandite-Sr(Sr,Ca,Na)5(Si27Al9)O72 · 24H2O
77.1.4.3Stilbite-CaNaCa4(Si27Al9)O72 · 28H2O
77.1.4.3Stilbite-NaNa9(Si27Al9)O72 · 28H2O
77.1.4.5BarreriteNa2(Al2Si7)O18 · 6H2O

Other Names for Heulandite-K

Name in Other Languages:
Simplified Chinese:钾片沸石
片沸石-K
Spanish:Heulandita-K

Other Information

Health Risks:
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-K

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.

Fahri Esenli and Isik Kumbasar (1998) X-Ray Diffraction Intensity Ratios I(111)//(311) of Natural Heulandites and Clinoptilolites, Clays and Clay Minerals, Vol. 46, No. 6, 679-686, 1998.

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-K

mindat.org URL:
https://www.mindat.org/min-6989.html
Please feel free to link to this page.
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    • Localities for Heulandite-K

    This 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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
    Canada
     
    • Nova Scotia
      • Kings Co.
        • Bay of Fundy
    		Canadian Mineralogist 38, 1215
    France
     
    • Nouvelle-Aquitaine
      • Haute-Vienne
        • Champagnac-la-Rivière
    		Lebocey j. & RDAG (2011) - autres gisements et indices de zéolites, In zéolites de France, Le Règne Minéral hors-série 17, 113-121
    Italy
     
    • Sardinia
      • Sassari Province
        • Anglona
    		AMI UK Service
    • Trentino-Alto Adige (Trentino-Südtirol)
      • Trento Province
        • Lagarina Valley
          • Mt. Baldo
            • Brentonico
    		Ferretti P., Gualtieri A., Masetto M. (2013): Armotomo, heulandite-K e “gmelinite” nelle vulcaniti eoceniche del Monte Baldo (Brentonico, Trentino-Alto Adige). Studi Trent. Sci. Nat., 93, 139-147.
    • Veneto
      • Vicenza Province
        • Altissimo
          • Campanella
    		Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
        • 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.
    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.
        • Monte di Malo
          • Contrada Vanzi
    		Carbonin, S., Manzone, A., Boscardin M., Pegoraro, S. (2003): Zeoliti del Vicentino: caratterizzazioni chimiche e ottiche nella serie dell'heulandite. Rivista Mineralogica Italiana, 4, 186-195.
    Boscardin M., Daleffe A., Rocchetti I., Zordan A. “I minerali nel Vicentino”, Museo “G. Zannato”, Montecchio Maggiore (Vicenza), 2011.
        • Santorso
    		Passaglia, E. (1969): Le zeoliti di Albero Bassi (Vicenza). Periodico di Mineralogia, 38, 237-243; Coombs, D.S., Alberti, A., Armbruster, T., Artioli, G., Colella, C., Galli, E., Grice, J.D., Liebau, F., Mandarino, J.A., Minato, H., Nickel, E.H., Passaglia, E., Peacor, R.D., Quartieri, S., Rinaldi, R., Ross, M., Sheppard, R.A., Tillmanns, S., Vezzalini, G. (1997): Recommended nomenclature for zeolite minerals: report of the sub commitee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. Canadian Mineralogist, 35, 1571-1606; Carbonin, S., Manzone, A., Boscardin, M., Pegoraro, S. (2003): Zeoliti del Vicentino: caratterizzazioni chimiche e ottiche nella serie dell'heulandite. Rivista Mineralogica Italiana, 27, 4 (4/2003), 186-195; Boscardin, M., Daleffe, A., Rocchetti, I., Zordan, A. (2011): Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni. Museo di Archeologia e Scienze Naturali “G. Zannato”, Montecchio Maggiore (Vicenza), 183 pp.; Della Costa, L. (2014): Zeoliti e altri minerali della Valle del Timonchiello, Tretto, Schio, Vicenza. Rivista Mineralogica Italiana, 38, 4 (4-2014),248-259; Zordan, A. (2014): Provincia di Vicenza. In: Zorzi, F., Boscardin, M., (eds.), Minerali del Veneto. Alla scoperta dei tesori della nostra regione. Museo di Storia Naturale e Archeologia di Montebelluna - Treviso, Cierre Edizioni, Sommacampagna, 173-246.
        • Santorso and Schio
    		Carbonin, S., Manzone, A., Boscardin, M., Pegoraro, S. (2003): Zeoliti del Vicentino: caratterizzazioni chimiche e ottiche nella serie dell'heulandite. Rivista Mineralogica Italiana, 27, 4 (4/2003), 186-195; Della Costa, L. (2014): Zeoliti e altri minerali della Valle del Timonchiello, Tretto, Schio, Vicenza. Rivista Mineralogica Italiana, 38, 4 (4-2014), 248-259.
        • Schio
          • Monte Magrè
    		Boscardin M., Daleffe A., Rocchetti I., Zordan A. "I minerali nel Vicentino", Museo "G. Zannato", Montecchio Maggiore, (Vicenza), 2011
          • Tretto
            • San Rocco di Tretto (San Rocco)
    		Della Costa, L. (2014): Zeoliti e altri minerali della Valle del Timonchiello, Tretto, Schio, Vicenza. Rivista Mineralogica Italiana, 38, 4 (4-2014), 248-259; Zordan, A. (2014): Provincia di Vicenza. In: Zorzi, F., Boscardin, M., (eds.), Minerali del Veneto. Alla scoperta dei tesori della nostra regione. Museo di Storia Naturale e Archeologia di Montebelluna - Treviso, Cierre Edizioni, Sommacampagna, 173-246.
    Carbonin, S., Manzone, A., Boscardin, M., Pegoraro, S. (2003): Zeoliti del Vicentino: caratterizzazioni chimiche e ottiche nella serie dell'heulandite. Rivista Mineralogica Italiana, 27, 4 (4/2003), 186-195; Boscardin, M., Daleffe, A., Rocchetti, I., Zordan, A. (2011): Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni. Museo di Archeologia e Scienze Naturali “G. Zannato”, Montecchio Maggiore (Vicenza), 183 pp.; Della Costa, L. (2014): Zeoliti e altri minerali della Valle del Timonchiello, Tretto, Schio, Vicenza. Rivista Mineralogica Italiana, 38, 4 (4-2014), 248-259; Zordan, A. (2014): Provincia di Vicenza. In: Zorzi, F., Boscardin, M., (eds.), Minerali del Veneto. Alla scoperta dei tesori della nostra regione. Museo di Storia Naturale e Archeologia di Montebelluna - Treviso, Cierre Edizioni, Sommacampagna, 173-246.
        • Valdagno
          • Cerealto
    		Boscardin, M., Checchi, A., Filippi, F., Guglielmino, S., Pegoraro, S., Pretto, G., Zattra, A. (1998): Offretite del Veneto. Rivista Mineralogica Italiana, 1/1998, 25-30.
    Norway
     
    • Akershus
      • Asker
    		Stensrud, S. (2004): Mineralfunn i ny sikkerhetstunnel i Vardåsen og langs ny gangvei langs Heggedalsveien i Asker i 2002-2003. Norsk Bergverksmuseum Skrift 28: 76-102; Nordrum, F. S., Larsen, A.O. & Erambert, M. (2005): Minerals of the heulandite series in Norway- additional data and summary. Norsk Bergverksmuseum Skrift, 30: 98-112
    • Aust-Agder
      • Arendal
        • Arendal Iron Mines
          • Barbudalen
            • Steinsås
    		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
    Nordrum, F. S., Larsen, A.O. & Erambert, M. (2005): Minerals of the heulandite series in Norway- additional data and summary. Norsk Bergverksmuseum Skrift, 30: 98-112
    • Hordaland
      • Øygarden
        • Nautnes
    		Nordrum, F.S., Larsen, A.O. & Erambert M. (2006): Minerals of the heulandite- and axinite series in Norway- additional data. Norsk Bergverksmuseum Skrift, 33: 27-34
    • Telemark
      • Kragerø
        • Valberg
    		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
    • Vestfold
      • Holmestrand
    		Nordrum, F. S., Larsen, A.O. & Erambert, M. (2005): Minerals of the heulandite series in Norway- additional data and summary. Norsk Bergverksmuseum Skrift, 30: 98-112
    Nordrum, F. S., Larsen, A.O. & Erambert, M. (2005): Minerals of the heulandite series in Norway- additional data and summary. Norsk Bergverksmuseum Skrift, 30: 98-112
      • Horten
        • Borre
          • Falkensten
    		Nordrum, F.S. et al. (2005): Minerals of the heulandite series in Norway- additional data and summary. Norsk Bergverksmuseum Skrift , 30: 98-112; [with analysis of heulandite-K from Falkenstensvingen]
      • Re
    		Nordrum, F. S., Larsen, A.O. & Erambert, M. (2005): Minerals of the heulandite series in Norway- additional data and summary. Norsk Bergverksmuseum Skrift, 30: 98-112
      • Sandefjord
        • Vesterøya
    		Larsen, A. O. (2002): Zeolitter fra syenittpegmatittene i Oslofeltet. Bergverksmuseets Skrift 20, 60-65; Larsen, A. O. (ed.) (2010): The Langesundsfjord. History, geology, pegmatites, minerals. Bode Verlag Gmbh, Salzhemmendorf, Germany, 240 pp
    Nordrum, F.S., Larsen, A.O. & Erambert M. (2006): Minerals of the heulandite- and axinite series in Norway- additional data. Norsk Bergverksmuseum Skrift, 33: 27-34 ; Larsen, A. O. (ed.) (2010): The Langesundsfjord. History, geology, pegmatites, minerals. Bode Verlag Gmbh, Salzhemmendorf, Germany, 240 p.
    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
    		Pekov, I.V. (2000): Lovozero Massif. Moscow, Ocean Pictures Ltd, 480 pp.
            • Tyul'bnyunuai River Valley
    		Pekov, I.V. (2000): Lovozero Massif. Moscow, Ocean Pictures Ltd, 480 pp.
    UK
     
    • England
      • Cornwall
        • St Just District
          • St Just
            • Botallack
              • Botallack Mine sett
    		J. Russell Socierty 2006, 68-71
    USA
     
    • Arizona
      • Maricopa Co.
    		AM61_853
    • Oregon
      • Clackamas Co.
        • Clackamas River localities
    		Tschernich, R. (1992): Zeolites of the World: 423; Howard, Don & Thornton, Jocelyn (1998) MicroProbe: 8(7), Spring 1998: 7-9; Tschernich, Rudy (2001) MicroProbe: 9(9), Spring 2001: 20-23; Gladwell, Jon ( ), Crystals & Minerals, Vol 3: 24-25.
    Mineral and/or Locality  
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