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Heulandite-Ca

A valid IMA mineral species - grandfathered
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About Heulandite-CaHide

Formula:
(Ca,Na)5(Si27Al9)O72 · 26H2O
Colour:
White, colorless, red, yellow, brown, green
Lustre:
Vitreous, Pearly
Hardness:
3½ - 4
Specific Gravity:
2.1 - 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 Ca. Despite having an international reputation, there are no known images of Henry Heuland.

Unique IdentifiersHide

Mindat ID:
6988
Long-form identifier:
mindat:1:1:6988:1
GUID
(UUID V4):
6311f3b5-b1e7-43d3-856e-3d80a89ea48d

IMA Classification of Heulandite-CaHide

Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
(Ca,Na,K)5(Si27Al9)O72 · 26H2O
Approval year:
1997

Classification of Heulandite-CaHide

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
77.1.4.1

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
Hul-CaIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
HulKretz (1983)Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279.
HulSiivolam & Schmid (2007)Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download
HulWhitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
HulThe Canadian Mineralogist (2019)The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download
HulWarr (2020)Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30

Physical Properties of Heulandite-CaHide

Vitreous, Pearly
Transparency:
Transparent
Comment:
Pearly on cleavage {010}
Colour:
White, colorless, red, yellow, brown, green
Streak:
White
Hardness:
3½ - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on the {010}
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
2.1 - 2.2 g/cm3 (Measured)    2.17 g/cm3 (Calculated)

Optical Data of Heulandite-CaHide

Type:
Biaxial (+)
RI values:
nα = 1.491 - 1.505 nβ = 1.493 - 1.503 nγ = 1.500 - 1.512
2V:
Measured: 10° to 48°
Max Birefringence:
δ = 0.009
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v distinct
Optical Extinction:
Z = b; X ∧ a = 0°-34°; Y ∧ c = 0°-32°.

Chemistry of Heulandite-CaHide

Mindat Formula:
(Ca,Na)5(Si27Al9)O72 · 26H2O

Crystallography of Heulandite-CaHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 17.73 Å, b = 17.82 Å, c = 7.43 Å
β = 116.33°
Ratio:
a:b:c = 0.995 : 1 : 0.417
Unit Cell V:
2,103.96 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Rhombic prisms, or coffin-shaped tabular crystals, granular, massive. Often in curved aggregates.
Twinning:
{100} is twin and contact plane.
Comment:
Merkle & Slaughter (1967). The reduced cell has beta ~113°. May be triclinic due to Al-Si ordering.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000154Heulandite-CaMerkle A B, Slaughter M (1967) The crystal structure of heulandite (Ca,Na2)[Al2Si7O18].6H2O American Mineralogist 52 273-27619670293
0000180Heulandite-CaMerkle A B, Slaughter M (1968) Determination and refinement of the structure of heulandite American Mineralogist 53 1120-113819680293
0000810Heulandite-CaMortier W J, Pearce J R (1981) Thermal stability of the heulandite-type framework: Crystal structure of the calcium/ammonium form dehydrated at 483K American Mineralogist 66 309-31419810293
0001668Heulandite-CaGunter M E, Armbruster T, Kohler T, Knowles C R (1994) Crystal structure and optical properties of Na- and Pb-exchanged heulandite-group zeolites Atomic parameters from ICSD American Mineralogist 79 675-68219940293
0006866Heulandite-CaComodi P, Gatta G D, Zanazzi P F (2001) High-pressure structural behaviour of heulandite European Journal of Mineralogy 13 497-50520010.0001293
0006867Heulandite-CaComodi P, Gatta G D, Zanazzi P F (2001) High-pressure structural behaviour of heulandite European Journal of Mineralogy 13 497-50520011.45293
0006868Heulandite-CaComodi P, Gatta G D, Zanazzi P F (2001) High-pressure structural behaviour of heulandite European Journal of Mineralogy 13 497-50520013.4293
0006869Heulandite-CaComodi P, Gatta G D, Zanazzi P F (2001) High-pressure structural behaviour of heulandite European Journal of Mineralogy 13 497-50520010.0001293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.917 Å(100)
2.959 Å(90)
8.84 Å(80)
7.80 Å(70)
5.096 Å(70)
3.420 Å(70)
2.805 Å(70)

Geological EnvironmentHide

Paragenetic Mode(s):
Geological Setting:
Cavities in basalt and as a devitrification product from volcanic glasses.

Type Occurrence of Heulandite-CaHide

Synonyms of Heulandite-CaHide

Other Language Names for Heulandite-CaHide

Varieties of Heulandite-CaHide

Beaumontite (of Lévy)Beaumontite differs from standard heulandite as a crystallographic variety with fewer crystal faces, resulting in beaumontite resembling an orthorhombic mineral with "right square prism". Most beaumontite, by coincidence, is generally golden yellow.

Relationship of Heulandite-Ca to other SpeciesHide

Other Members of this group:
Heulandite-Ba(Ba,Ca,K)5(Si27Al9)O72 · 22H2OMon. 2/m : B2/m
Heulandite-K(K,Ca,Na)5(Si27Al9)O72 · 26H2OMon. 2/m : B2/m
Heulandite-Na(Na,Ca,K)6(Si,Al)36O72 · 22H2OMon. m : Bm
Heulandite-Sr(Sr,Na,Ca)5(Si27Al9)O72 · 24H2OMon. m : Bm
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
386 photos of Heulandite-Ca associated with Stilbite-CaNaCa4(Si27Al9)O72 · 28H2O
198 photos of Heulandite-Ca associated with QuartzSiO2
171 photos of Heulandite-Ca associated with Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
169 photos of Heulandite-Ca associated with CalciteCaCO3
121 photos of Heulandite-Ca associated with Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
111 photos of Heulandite-Ca associated with ChalcedonySiO2
85 photos of Heulandite-Ca associated with CeladoniteK(MgFe3+◻)(Si4O10)(OH)2
85 photos of Heulandite-Ca associated with Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
75 photos of Heulandite-Ca associated with LaumontiteCaAl2Si4O12 · 4H2O
58 photos of Heulandite-Ca associated with PrehniteCa2Al2Si3O10(OH)2

Related Minerals - Strunz-mindat GroupingHide

9.GE.05Clinoptilolite-CaCa3(Si30Al6)O72 · 20H2OMon. 2/m
9.GE.05Clinoptilolite-KK6(Si30Al6)O72 · 20H2OMon. 2/m
9.GE.05Clinoptilolite-NaNa6(Si30Al6)O72 · 20H2OMon. 2/m : B2/m
9.GE.05Heulandite-K(K,Ca,Na)5(Si27Al9)O72 · 26H2OMon. 2/m : B2/m
9.GE.05Heulandite-Na(Na,Ca,K)6(Si,Al)36O72 · 22H2OMon. m : Bm
9.GE.05Heulandite-Sr(Sr,Na,Ca)5(Si27Al9)O72 · 24H2OMon. m : Bm
9.GE.05Heulandite-Ba(Ba,Ca,K)5(Si27Al9)O72 · 22H2OMon. 2/m : B2/m
9.GE.10Stilbite-CaNaCa4(Si27Al9)O72 · 28H2OMon. 2/m : B2/m
9.GE.10Stilbite-NaNa9(Si27Al9)O72 · 28H2OMon. 2/m : B2/m
9.GE.15BarreriteNa2(Si7Al2)O18 · 6H2OOrth. 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] · 5H2OMon. 2/m : P21/m

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.

Internet Links for Heulandite-CaHide

References for Heulandite-CaHide

Localities for Heulandite-CaHide

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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Argentina
 
  • Santa Cruz Province
    • Deseado Department
      • Bosques Petrificados de Jaramillo National Park
G. Aliotta et al. (1996)
Australia
 
  • New South Wales
    • Pottinger Co.
RRUFF Database - File RO60465
  • Victoria
    • Bass Coast Shire
Birch (1989)
Austria
 
  • Carinthia
    • Wolfsberg District
      • Frantschach-Sankt Gertraud
Carinthia II (2013)
  • Lower Austria
    • Krems-Land District
      • Lichtenau im Waldviertel
Kolitsch (2016)
      • Paudorf
        • Meidling
Kolitsch et al. (2023)
    • Melk District
      • Persenbeug-Gottsdorf
        • Loja
Löffler et al. (2011)
      • Pöchlarn
Knobloch et al. (2021)
    • Waidhofen an der Thaya District
      • Raabs an der Thaya
        • Eibenstein an der Thaya
Kolitsch et al. (2015)
    • Zwettl District
      • Kottes-Purk
        • Tretelhof
Kolitsch et al. (2022)
  • Styria
    • Deutschlandsberg District
      • Stainz
        • Marhof
Postl (2007)
  • Tyrol
    • Landeck District
      • Kaunertal
        • Vergötschen
Bernhard (2009)
  • Vorarlberg
    • Bludenz District
      • Gaschurn
        • Ochsen valley
Kolitsch (2022)
      • Sankt Gallenkirch
        • Gargellen valley
          • Gargellen
Kolitsch (2017) +1 other reference
Kolitsch (2014)
      • Schruns
Kolitsch (2017)
Brazil
 
  • Minas Gerais
    • Divino das Laranjeiras
Rob Lavinsky
  • Rio Grande do Sul
Pinto V. et al. (2011)
  • São Paulo
    • Pederneiras
      • Pederneiras
Färber (n.d.)
    • Serrana
Ruiz (2001)
Canada
 
  • New Brunswick
    • Charlotte Co.
      • Grand Manan Island
King (n.d.)
        • Eel Brook Beach
Grand Manan Museum
Grand Manan Museum
King (n.d.)
Sabina (2015)
  • Northwest Territories
    • Mackenzie Mountains
      • Tungsten
Groat et al. (2003)
  • Nova Scotia
    • Cumberland Co.
      • Two Islands
Pe-Piper et al. (2002)
    • Digby Co.
Walker et al. (1922)
Traill (1970)
    • Kings Co.
Pe-Piper et al. (2002)
Rob Lavinsky
Walker et al. (1922) +1 other reference
Pe-Piper (2000)
    • Yarmouth Co.
      • Argyle
        • East Kemptville
Ronnie Van Dommelen collection. Kerry ...
  • Québec
    • Laurentides
      • Argenteuil RCM
        • Harrington
Van Velthuizen et al. (2006)
        • Wentworth
          • Laurel
Tschernich (1992) +1 other reference
    • Outaouais
      • La Vallée-de-la-Gatineau RCM
        • Lac-Pythonga
          • Maniwaki occurrences
Van Velthuizen et al. (2006)
      • Les Collines-de-l'Outaouais RCM
        • Cantley
          • Lac Saint Antoine
Van Velthuizen et al. (2006)
        • Chelsea
          • Autoroute 5 extension
Horváth collection
      • Pontiac RCM
        • Otter Lake
Lafontaine (1979) +1 other reference
Czech Republic
 
  • Central Bohemian Region
    • Kladno District
Bohuslav Bures photo and specimen (confirmed by PXRD and EMPA WDS) +2 other references
  • Hradec Králové Region
    • Jičín District
      • Železnice
        • Doubravice
Zeman +4 other references
  • Liberec Region
    • Česká Lípa District
      • Česká Lípa
        • Stará Lípa
P.Pauliš et al. (2014) +1 other reference
      • Provodín
Erionite-Ca from the Michlův hill near ...
      • Svor
P.Pauliš et al. (Czech rep.)
    • Jablonec nad Nisou District
      • Frýdštejn
        • Bezděčín
  • Moravian-Silesian Region
    • Nový Jičín District
      • Skotnice
Kudělásková et al. (1990)
  • Olomouc Region
    • Šumperk District
      • Hraběšice
Novotný +2 other references
      • Loučná nad Desnou
        • Kouty nad Desnou
Novotný
      • Šumperk
        • Temenice
          • Dolní Temenice
Novotný
          • Horní Temenice
Novotný
      • Velké Losiny
        • Maršíkov (Marchendorf)
Novotný
      • Vikýřovice
Novotný
  • Pardubice Region
    • Pardubice District
PAULIŠ et al. (2022)
  • Ústí nad Labem Region
    • Děčín District
      • Česká Kamenice
Pauliš et al. (2015) +1 other reference
      • Těchlovice
Bulletin Mineralogie Petrologie vol.26
    • Ústí nad Labem District
      • Ústí nad Labem
        • Sebuzin (Sebusein)
Dvorák et al. (2017)
  • Vysočina Region
    • Žďár nad Sázavou District
Review of zeolite mineralizations from ...
Ecuador
 
  • Guayas Province
    • Guayaquil Canton
R. S. Bowman and S. E. Delap (Eds.)
    • Isidro Ayora Canton
R. S. Bowman and S. E. Delap (Eds.)
France
 
  • Auvergne-Rhône-Alpes
    • Savoie
      • Albertville
        • La Léchère
          • Bonneval-Tarentaise
Bernard (2011)
          • Pussy
De Ascenção Guedes et al. (2002)
Germany
 
  • Bavaria
    • Lower Bavaria
      • Freyung-Grafenau District
        • Röhrnbach
Habel (2009)
  • Hesse
    • Darmstadt
      • Darmstadt-Dieburg
        • Mühltal
Belendorff (2021)
Belendorff (2021)
  • Lower Saxony
    • Goslar District
      • Braunlage
        • St Andreasberg
          • Beerberg
Weiß (1990)
    • Peine District
      • Ilsede
Weiß (1990)
      • Lengede
Weiß (1990)
  • Rhineland-Palatinate
    • Birkenfeld
      • Baumholder
        • Baumholder
Weiß (1990)
  • Saxony
    • Görlitz District
      • Ebersbach-Neugersdorf
Andreas Gerstenberg collection
  • Thuringia
    • Saale-Orla District
      • Wurzbach
        • Weitisberga
Wittern (2001)
Hungary
 
  • Baranya County
    • Komló District
      • Magyaregregy
Mineral Species of Hungary
Mineral Species of Hungary
  • Heves County
    • Gyöngyös District
Szakáll (2002)
Iceland
 
  • Capital Region
    • Kjósarhreppur
Weisenberger et al. (2009)
Weisenberger et al. (2009)
  • Eastern Region
    • Fjarðabyggð
      • Neskaupstaður
Personally collected by Günter Frenz
    • Múlaþing
      • Djúpavogshreppur
        • Berufjörður
Zeolite collection of Volker Betz +1 other reference
Weisenberger et al. (2009)
  • Northwestern Region
    • Sveitarfélagið Skagafjörður
      • Sauðárkrókur
Personally collected by Günter Frenz
India
 
  • Maharashtra
    • Aurangabad Division
      • Aurangabad District
Tony Nichisher
    • Nashik Division
...
Rob Lavinsky
Verlag Ch.Weise (in German) +2 other references
Verlag Ch.Weise (in German) +1 other reference
    • Pune Division
      • Pune District
Arnav Khokarale Collection
        • Junnar
Arnav Khokarale Collection
Arnav Khokarale Collection
        • Lonavale (Lonavala)
Praszkier et al. (2007)
        • Pashan
Rock Currier photo
Arnav Khokarale Collection
Iran
 
  • Qom Province
Kousehlar et al. (2012)
  • Tehran Province
Bazargani-Guilani et al. (2004)
Ireland
 
  • Connacht
    • Galway County
      • Connemara
Moreton et al. (2006)
Italy
 
  • Aosta Valley
    • Courmayeur
Piccoli et al. (2007)
Piccoli et al. (2007)
Piccoli et al. (2007)
Piccoli et al. (2007)
  • Liguria
    • La Spezia Province
      • Levanto
Bracco R. et al. (2005)
  • Lombardy
    • Sondrio Province
      • Novate Mezzola
        • Codera Valley
Ghizzoni et al. (2005)
Ghizzoni et al. (2005)
Ghizzoni et al. (2005)
Ghizzoni et al. (2005)
Ghizzoni et al. (2005)
      • Valdidentro
Bedognè et al. (2006)
  • Piedmont
    • Biella Province
      • Campiglia Cervo
Piccoli et al. (2007)
Piccoli et al. (2007)
        • San Paolo Cervo
Martini et al. (2012)
Martini et al. (2012)
      • Rosazza
Piccoli et al. (2007)
    • Cuneo Province
      • Bagnolo Piemonte
Piccoli et al. (2007)
Piccoli et al. (2007) +1 other reference
    • Metropolitan City of Turin
Ambrino et al. (2009)
      • Prali
Piccoli et al. (2007)
      • Traversella
Franco Luca Bonino's collection
Bianco et al. (2006) +1 other reference
    • Verbano-Cusio-Ossola Province
      • Beura-Cardezza
Piccoli et al. (2007)
      • Formazza
        • Vallone del Vannino
Mattioli V. (1976) +2 other references
      • Premia
        • Premia gneiss quarries
Piccoli et al. (2007)
Piccoli et al. (2007)
  • Sardinia
    • Metropolitan City of Cagliari
      • Pula
Pongiluppi et al. (1974) +3 other references
Pongiluppi et al. (1974) +3 other references
Pongiluppi et al. (1974)
    • Sassari Province
      • Arzachena
        • Mt. Mazzolu
Gamboni et al. (2012)
S. Cuccuru (2011)
  • Trentino-Alto Adige (Trentino-South Tyrol)
    • South Tyrol
      • Salten-Schlern (Salto-Sciliar)
        • Kastelruth (Castelrotto)
Passaglia (1972) +5 other references
    • Trento Province (Trentino)
      • Canazei
Exel (1980) +3 other references
      • Mazzin
De Michele (1974) +7 other references
      • Moena
Ferretti et al. (2013)
  • Veneto
Mattioli et al. (2016)
    • Belluno Province
      • Rocca Pietore
        • Pettorina Valley
          • Sottoguda-Palue area
Andrea Canal collection. Performed analyses : XRD at the laboratory of ENI-Versalis (Porto Marghera)
    • Verona Province
      • Soave
Pegoraro et al. (2017)
    • Vicenza Province
      • Arzignano
        • Monte Main
Boscardin (2002) +3 other references
      • Cornedo Vicentino
        • Spagnago
Boscardin M. et al. (2011) +1 other reference
      • Montorso Vicentino
        • Contrada Nori
Boscardin (2002) +2 other references
      • Santorso
www.tron.vi.it (2001) +1 other reference
      • Schio
        • Monte Magrè
Boscardin M. et al. (Vicenza)
Della Costa (2014)
        • Tretto
          • San Rocco di Tretto (San Rocco)
Carbonin et al. (2003) +3 other references
Carbonin et al. (2003) +3 other references
Japan
 
  • Ehime Prefecture
    • Kamiukena District
Mark Mauthner collection No. 382 (originally collected by Dr. Atsushi Gomi)
  • Kanagawa Prefecture
    • Ashigarashimo District
      • Yugawara
Harada et al (1969)
  • Tokyo Metropolis
    • Ogasawara Subprefecture
      • Ogasawara Islands
        • Chichijima Group
Mineralogical Journal Vol. 11 (1982)
Madagascar
 
  • Sava
    • Sambava District
      • Ambohimalaza Commune
        • Ambariomiambana
Praszkier (2010)
Mexico
 
  • Chihuahua
    • Batopilas Municipality
      • Andrés del Rio mining district
Wilson et al. (1986)
  • Veracruz
    • Las Vigas de Ramírez Municipality
Peter Megaw specimens
    • Tatatila Municipality
Megaw (2023)
New Zealand
 
  • Auckland Region
    • Waitakere Ranges
T. Saunderson collection +1 other reference
T. Saunderson collection
  • Northland Region
    • Kaipara District
      • Hukatere Peninsula
T. Saunderson collection
Norway
 
  • Agder
    • Arendal
      • Austre Moland
Nordrum et al. (2005)
      • Barbudalen
        • Steinsås
Nordrum +1 other reference
    • Bygland
Breivik (2017)
    • Evje og Hornnes
      • Flåt
Frigstad (1985) +1 other reference
    • Iveland
      • Ljosland
Breivik et al. (2010)
  • Buskerud
    • Drammen
Nordrum et al. (2005)
Nordrum et al. (2005)
      • Nedre Eiker
Nordrum +2 other references
    • Flesberg
      • Svene
Nordrum +1 other reference
      • Vinoren Silver Mine Field
        • Vinoren Southern Mines
Nordrum +1 other reference
    • Lier
      • Lierskogen
Eldjarn (1973) +1 other reference
Nordrum et al. (2005)
      • Sylling
Nordrum +1 other reference
    • Øvre Eiker
Nordrum et al. (2003)
  • Innlandet
    • Lom
Nordrum et al. (2005)
    • Øystre Slidre
Nordrum et al. (2005)
    • Tynset
Nordrum et al. (2005)
    • Vang
Nordrum et al. (2005)
  • Nordland
    • Fauske
      • Sulitjelma
Nordrum +1 other reference
    • Grane
Nordrum +1 other reference
    • Sørfold
Ellingsen et al. (1995) +1 other reference
  • Oslo
    • Grorud
Nordrum et al. (2005)
  • Telemark
    • Kragerø
      • Valberg
Nordrum +1 other reference
    • Porsgrunn
      • Auenlandet
        • Sagåsen
Larsen et al. (2005)
  • Troms og Finnmark
    • Tromsø
      • Kvaløya
Nordrum (2008)
  • Trøndelag
    • Oppdal
Nordrum et al. (2005)
      • Trollheimen
Nordrum et al. (2005)
    • Rennebu
Nordrum +1 other reference
  • Vestfold
    • Holmestrand
Nordrum et al. (2005)
      • Botne
Nordrum et al. (2006)
      • Helland
Nordrum +2 other references
Nordrum et al. (2005)
    • Horten
      • Borre
        • Falkensten
Nordrum et al. (2005)
    • Larvik
      • Tjølling
        • Håkestad
Larsen (2002)
        • Klåstad
Larsen (2002)
Larsen et al. (2010)
        • Stålaker
Larsen et al. (2010)
      • Tvedalen
Larsen (2002) +1 other reference
Larsen (2002)
    • Sandefjord
      • Vesterøya
Nordrum +1 other reference
  • Vestland
Nordrum et al. (2005)
    • Luster
      • Berdalen
        • Hurrungane
Nordrum et al. (2005)
    • Osterøy
Nordrum +1 other reference
    • Sunnfjord
Nordrum +1 other reference
  • Viken
    • Asker
Stensrud (2004) +1 other reference
    • Eidsvoll
      • Feiring
Nordrum et al. (2005)
    • Lunner
      • Øståsen
Nordrum et al. (2005)
    • Nittedal
Nordrum +1 other reference
Peru
 
  • Lima
    • Huaura Province
      • Sayán District
Hyrsl (2013)
Philippines
 
  • Luzon
    • Ilocos Region
      • Pangasinan Province
        • Mangatarem
Olegario-Sanchez et al. (2017, December)
Poland
 
  • Lesser Poland Voivodeship
    • Chrzanów County
      • Gmina Alwernia
Pusch (1833) +2 other references
Kreutz S. (1931) +1 other reference
    • Kraków County
      • Gmina Krzeszowice
Piekarska E. (1954)
  • Lower Silesian Voivodeship
    • Karkonosze County
      • Piechowice
Krzysztof Andrzejewski
    • Świdnica County
      • Gmina Strzegom
        • Żółkiewka
Geologia Sudetica 20 (2) +1 other reference
Geologia Sudetica 20 (2) +1 other reference
Portugal
 
  • Lisbon
SEM-EDX by Marco E Ciriotti April 2012
Rui Nunes collection
      • Lousa
Rui Nunes' collection
Rui Nunes collection
      • Ramada e Caneças
Pedro Alves analytical data. Specimens ...
    • Oeiras
Rui Nunes collection
Alexandre Pedroso collection.
Russia
 
  • Kamchatka Krai
Pavel M. Kartashov analytical data (1984)
  • Khanty-Mansi Autonomous Okrug
    • Berezovo district
      • Saranpaul
Burlakov (1999)
  • Krasnoyarsk Krai
    • Evenkiysky District
      • Nizhnyaya Tunguska River Basin
Krzysztof Andrzejewski ( https://www.mindat.org/mesg-613516.html ) +1 other reference
Levitsky (webmineral.ru)
collection V.V. Levitsky
in collection of Fersman Mineralogical ...
Chukanov et al. (2003)
Kievlenko et al. (1987)
        • Tura
Kudryashova (1973) +1 other reference
  • Murmansk Oblast
    • Khibiny Massif
Pekov et al. (2004)
    • Lovozersky District
Arzamastsev et al. (2008)
Pekov (2000)
Yakovenchuk et al. (2011)
      • Seidozero Lake
Yakovenchuk et al. (2007)
    • Olenegorsk
Bazai et al. (2009)
  • Sverdlovsk Oblast
    • Asbest
Antonov A.A. [Антонов А.А.] (2003)
Slovakia
 
  • Prešov Region
    • Poprad District
      • Poprad
Martin Števko
      • Vysoké Tatry
Kreutz S. (1931)
    • Vranov nad Topľou District
      • Vechec
Števko M. et al. (2019)
South Africa
 
  • KwaZulu-Natal
    • eThekwini Metropolitan Municipality
      • Durban
        • Umhlatuzana valley
Heron +2 other references
Spain
 
  • Andalusia
    • Málaga
      • Canillas de Aceituno
Calvo (2018)
  • Community of Madrid
    • La Cabrera
Tanago et al. (2012)
Switzerland
 
  • Bern
    • Interlaken-Oberhasli
      • Guttannen
Stalder et al. (1998)
  • Grisons
    • Maloja Region
      • Bregaglia
        • Upper Val Bregaglia
          • Promontogno
Stalder et al. (1998)
          • Soglio
Stalder et al. (1998)
          • Val Forno
Stalder et al. (1998)
    • Moesa Region
      • Calanca
        • Arvigo
Stalder et al. (1998) +2 other references
    • Surselva Region
      • Trun
Stalder et al. (1998)
      • Tujetsch
        • Sedrun
Jahn (2008)
Stalder et al. (1998)
        • Val Milà
Stalder et al. (1998)
        • Val Strem
Stalder et al. (1998)
  • Ticino
    • Leventina
      • Airolo
Stalder et al. (1998)
    • Vallemaggia
      • Cevio
Stalder et al. (1998)
  • Uri
    • Reuss Valley
      • Felli Valley
        • Schattig Wichel (Piz Giuv)
Stalder et al. (1998)
      • Göschenen
        • Göschenen Valley
          • Göscheneralp
Färber (n.d.)
      • Rien Valley
Stalder et al. (1998)
    • Silenen
      • Maderanertal
        • Etzli Valley
Stalder et al. (1998)
  • Valais
    • Goms
      • Binn
        • Chriegalp valley
Stalder et al. (1998)
      • Fiesch
American Mineralogist (1968) +1 other reference
    • Hérens
      • Evolène
        • Arolla Valley
          • Arolla
Stéphane Cuchet and Nicolas Meisser
    • Sierre
      • Anniviers
        • Ayer
Ansermet et al. (2012)
        • Zinal
Ansermet et al. (2012)
    • Westlich Raron
      • Blatten
        • Lang glacier area
Stalder et al. (1998)
Stalder et al. (1998)
      • Kippel
Stalder et al. (1998)
Tajikistan
 
  • Sughd
    • Mastchoh District
      • Altyn-Topkan ore field (Zarnisor ore field)
Badalov et al. (1977)
Tanzania
 
  • Manyara Region
    • Simanjiro District
      • Lelatema Mountains
Mineralogical Record (2009)
UK
 
  • England
    • Cornwall
      • St Just
        • Botallack
          • Botallack Mine
J. Russell Socierty 2006
  • Northern Ireland
    • County Down
      • Mourne Mountains
        • Newcastle
Green et al. (2005)
  • Scotland
Brooke H J (1822)
Ukraine
 
  • Crimea
Tischenko A. data
    • Simferopol area
      • Lozovoye Village area
Tischenko Alexander
      • Ukrainka Village area (Kurtsy)
Dvoichenko (1914) +1 other reference
  • Sevastopol
    • Balaklava district
Dobrovolskaya T.I. (2004)
  • Volyn Oblast
Emetz et al. (2005)
USA
 
  • Alaska
    • Petersburg Borough
Di Renzo et al. (1997)
  • Colorado
    • Jefferson County
      • Golden Mining District
        • Golden
Rocks & Minerals 79:4
Rocks & Minerals 79:4
  • Connecticut
    • Fairfield County
      • Brookfield
Former Ronald Januzzi collection
      • Newtown
        • Hawleyville
Januzzi et al. (1976)
Tschernich (1992) +1 other reference
      • Trumbull
        • Long Hill
'Heulandite' should be changed to ...
    • Hartford County
      • Farmington
Moritz (n.d.)
      • Newington
Moritz (n.d.)
    • Litchfield County
      • Thomaston
        • Thomaston Dam
Moritz (n.d.)
      • Torrington (Wolcottville)
Field observations July 2020
      • Woodbury
        • Orenaug Hills
Moritz (n.d.)
Moritz (n.d.) +1 other reference
    • New Haven County
Moritz (n.d.)
Moritz (n.d.)
Walter D. Munson (of Southbury)
Visually identified by Mike Polletta
Identified by Mike Polletta
  • Hawaii
    • Honolulu County
      • Oahu Island
        • Koolau Range (Koolau caldera)
          • Kailua
Fujishima et al. (1977)
Dunham (1933)
  • Idaho
    • Custer County
      • Bay Horse Mining District
Rocks & Minerals (March, 2001)
Ream (2004)
  • Maryland
    • Baltimore City
[var: Beaumontite (of Lévy)] M. Levy (1839)
  • Massachusetts
    • Hampshire County
      • Amherst
Ted Johnson collection
  • Michigan
    • Houghton County
      • Portage Township
Heinrich et al. (2004)
  • New Jersey
    • Passaic County
      • Paterson
Rob Lavinsky photo
      • Prospect Park
rruff.info (n.d.)
    • Sussex County
      • Franklin
King (2022)
      • Ogdensburg
        • Sterling Hill
Lance Kearns
    • Union County
      • Springfield Township
        • Springfield
Tony Nikischer
  • New Mexico
    • Grant County
      • Alum Mountain Mining District (Alum Mining District)
        • Gila Hot Springs
Patrick Haynes
    • Otero County
      • Cornudas Mountains
Michael C. Michayluk collection
  • New York
    • New York City
      • Queens (Queens County)
        • Woodside
Jeff Weissman specimen
    • St. Lawrence County
      • Fine
Marian Lupulescu (2010)
      • West Pierrepont
Chamberlain
    • Westchester County
New York State Museum mineral collection +1 other reference
Leonard S.Wiener and Sigrid Ballew
    • Catawba County
      • Hickory
Kenny Gay - North Carolina Geological ...
    • Guilford County
      • Jamestown
Kenny Gay - North Carolina Geological ...
    • Rowan County
      • Woodleaf
Kenny Gay - North Carolina Geological ...
  • Oregon
    • Clackamas County
      • Clackamas River localities
Micro Probe Volume IX Number 3 Spring ...
    • Jackson County
      • Lost Creek Reservoir
Phyllis Richardson
Phyllis Richardson
  • Pennsylvania
    • Montgomery County
      • Lower Merion Township
Gordon (1922)
  • Rhode Island
    • Providence County
      • Lincoln
        • Lime Rock
Michael W. Kieron collection
    • Washington County
      • Westerly
        • Bradford
Michael W. Kieron collection
  • Virginia
    • Fairfax County
ID'd by Tony Kampf
    • Prince William County
      • Manassas
ID'd by Tony Kampf. I had listed them ...
 
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