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Heulandite-Na

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Formula:
(Na,Ca,K)6(Si,Al)36O72 · 22H2O
Colour:
White, Colorless, Red, Yellow, Brown, Green
Lustre:
Vitreous, Pearly
Hardness:
3 - 3½
Specific Gravity:
2.2
Crystal System:
Monoclinic
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 Na. Despite having an international reputation, there are no known images of Henry Heuland.
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Classification of Heulandite-NaHide

Approved
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-NaHide

Vitreous, Pearly
Transparency:
Transparent
Colour:
White, Colorless, Red, Yellow, Brown, Green
Streak:
White
Hardness:
3 - 3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on the {010}
Density:
2.2 g/cm3 (Measured)    2.12 g/cm3 (Calculated)

Optical Data of Heulandite-NaHide

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-NaHide

Formula:
(Na,Ca,K)6(Si,Al)36O72 · 22H2O

Crystallography of Heulandite-NaHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 7.46 Å, b = 17.84 Å, c = 15.88 Å
β = 91.433°
Ratio:
a:b:c = 0.418 : 1 : 0.89
Unit Cell V:
2 ų
Z:
2

X-Ray Powder DiffractionHide

Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Type Occurrence of Heulandite-NaHide

Other Language Names for Heulandite-NaHide

Relationship of Heulandite-Na to other SpeciesHide

Other Members of this group:
Heulandite-Ba(Ba,Ca,K)5(Si27Al9)O72 · 22H2OMon. 2/m : B2/m
Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2OMon. 2/m : B2/m
Heulandite-K(K,Ca,Na)5(Si27Al9)O72 · 26H2OMon. 2/m : B2/m
Heulandite-Sr(Sr,Na,Ca)5(Si27Al9)O72 · 24H2OMon. 2/m : B2/m
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
Dolomite6 photos of Heulandite-Na associated with Dolomite on mindat.org.
Opal-AN4 photos of Heulandite-Na associated with Opal-AN on mindat.org.
Pyrite2 photos of Heulandite-Na associated with Pyrite on mindat.org.
Hydroxylapatite1 photo of Heulandite-Na associated with Hydroxylapatite on mindat.org.
Stilbite-Ca1 photo of Heulandite-Na associated with Stilbite-Ca on mindat.org.
Chalcedony1 photo of Heulandite-Na associated with Chalcedony on mindat.org.
Clinoptilolite-Na1 photo of Heulandite-Na associated with Clinoptilolite-Na on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.GE.05Clinoptilolite-CaCa3(Si30Al6)O72·20H2OMon.
9.GE.05Clinoptilolite-KK6(Si30Al6)O72·20H2OMon. 2/m
9.GE.05Clinoptilolite-NaNa6(Si30Al6)O72·20H2OMon. 2/m : B2/m
9.GE.05Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2OMon. 2/m : B2/m
9.GE.05Heulandite-K(K,Ca,Na)5(Si27Al9)O72 · 26H2OMon. 2/m : B2/m
9.GE.05Heulandite-Sr(Sr,Na,Ca)5(Si27Al9)O72 · 24H2OMon. 2/m : B2/m
9.GE.05Heulandite-Ba(Ba,Ca,K)5(Si27Al9)O72 · 22H2OMon. 2/m : B2/m
9.GE.10Stilbite-CaNaCa4[Al9Si27O72] · nH2OMon. 2/m : B2/m
9.GE.10Stilbite-Na(Na,Ca,K)6-7[Al8Si28O72] · nH2OMon. 2/m : B2/m
9.GE.15Barrerite(Na,K,Ca0.5)2[Al2Si7O18] · 7H2OOrth. mmm (2/m 2/m 2/m)
9.GE.15StelleriteCa4(Si28Al8)O72 · 28H2OOrth. mmm (2/m 2/m 2/m) : Fmmm
9.GE.20Brewsterite-Ba(Ba,Sr)[Al2Si6O16] · 5H2OMon. 2/m : P21/m
9.GE.20Brewsterite-Sr(Sr,Ba,Ca)[Al2Si6O16] · 5H2O

Other InformationHide

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-NaHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Merkle, A.B., Slaughter, M. (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.
Esenli, F., Kumbasar, I. (1998) X-Ray Diffraction Intensity Ratios I(111)//(311) of Natural Heulandites and Clinoptilolites, Clays and Clay Minerals: 46(6): 679-686.
Comodi, P., Gatta, G.D., Zanazzi, P.F. (2001) High-pressure structural behavior of heulandite. European Journal of Mineralogy: 15: 247-255.

Internet Links for Heulandite-NaHide

Localities for Heulandite-NaHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Upper Austria
    • Linz-Land
      • Traun
        • Pucking
Kolitsch, U. (2015): 1935) Almandin, Aragonit, Baryt, Heulandit-Na, Klinoptilolith-Na, ein Magnesiochromit-Spinell-Mischkristall und Schwefel vom Traunkraftwerk Pucking, Oberösterreich. Pp. 241-243 in Niedermayr, G. et al. (2015): Neue Mineralfunde aus Österreich LXIV. Carinthia II, 205./125., 207-280.
Greece
 
  • Aegean Islands Department (Aiyaíon)
    • Kykládes Prefecture
      • Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon)
        • Tinos Island
          • Panormos Bay
Gunnar Färber specimens
Italy
 
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Omegna
- Albertini,C. (2000) : Ritrovamenti nel Rio Inferno, Brughiere di Omegna. Prima segnalazione nel granito di Baveno : uranofane-beta - Rivista Mineralogica Italiana, Milano, XXIV, 2, 88-92.
  • Veneto
    • Vicenza Province
      • Gambellara
        • S. Marco hill
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
      • 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.
      • Montecchio Maggiore
        • San Pietro
Carbonin
Japan
 
  • Kyushu Region
    • Fukuoka prefecture
      • Munakata
Ueno et al (1982) Sanko-Gakkai Kou'en-Youshi, 149.
  • Tokyo Metropolis
    • Ogasawara Islands
      • Chichijima Group
Mineralogical Journal Vol. 11 (1982) , No. 1 pp1-14
Namibia
 
  • Khomas Region
    • Windhoek District
      • Aris
Uwe Kolitsch (SXRD and EDS analyses); Kolitsch, U., Blaß, G., Jahn, S., Cámara, F., von Bezing, L., Wartha, R. R., Tremmel, G., Sturla, M., Cerea, P., Skebo, M. and Ciriotti, M. E. (2016): Aris - mineralogy of the famous alkaline phonolite. AMI - Associazione Micromineralogica Italiana, Cremona, Italy, 95 pp.
Norway
 
  • 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
Russia
 
  • Eastern-Siberian Region
    • Transbaikalia (Zabaykalye)
      • Chitinskaya Oblast'
P.M. Kartashov data
  • Far-Eastern Region
    • Kamchatka Oblast'
Pavel M. Kartashov analytical data (1984)
USA
 
  • California
    • Kern Co.
      • Kramer District (Kramer Borate District)
        • Boron
          • Kramer Borate deposit
            • U.S. Borax Mine (Pacific West Coast Borax; Pacific Coast Borax Co.; Boron Mine; Boron open pit; U.S. Borax and Chemical Corporation Mine; Kramer Mine; Kramer pit; Baker Mine)
Am Min 90:1186-1191; Tschernich, R. (1992): Zeolites of the World, 64; Clays and Clay Minerals, Vol. 36, No. 2, 131-136, 1988
  • Colorado
    • Mineral Co.
      • San Juan Mts
        • Wolf Creek Pass
Patrick haynes. ID via Tony Kampf
  • Idaho
    • Custer Co.
      • Bay Horse District
        • Challis
Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
Fluorescent Zeolites and Associated Minerals from the Rat's Nest Mine, Challis, Idaho: John Cornish, Jan 7, 2005
Tschernich, R. (1992): Zeolites of the World, p.349
      • Warm Spring Creek District
Tom Loomis specimen
Mineral and/or Locality  
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