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Heulandite-Sr

A valid IMA mineral species
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About Heulandite-SrHide

Formula:
(Sr,Na,Ca)5(Si27Al9)O72 · 24H2O
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 Sr. Despite having an international reputation, there are no known images of Henry Heuland.
The strontium analogue of Heulandite-Ba, Heulandite-Ca, Heulandite-K, and Heulandite-Na.


Unique IdentifiersHide

Mindat ID:
6991
Long-form identifier:
mindat:1:1:6991:1
GUID
(UUID V4):
d02f1f1e-9df0-41cb-8030-afa9d77640e6

IMA Classification of Heulandite-SrHide

Approved
IMA Formula:
(Sr,Ca,Na)5(Si27Al9)O72 · 24H2O
First published:
1982

Classification of Heulandite-SrHide

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

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-SrIMA–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

Pronunciation of Heulandite-SrHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of Heulandite-SrHide

Vitreous, Pearly
Transparency:
Transparent, Translucent
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)    2.24 g/cm3 (Calculated)

Optical Data of Heulandite-SrHide

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

Chemistry of Heulandite-SrHide

Mindat Formula:
(Sr,Na,Ca)5(Si27Al9)O72 · 24H2O

Crystallography of Heulandite-SrHide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Bm
Setting:
Cm
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

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0002991Heulandite-SrDobelin N, Armbruster T (2003) Stepwise dehydration of Sr-exchanged heulandite: A single-crystal X-ray study American Mineralogist 88 527-53320030293
0002992Heulandite-SrDobelin N, Armbruster T (2003) Stepwise dehydration of Sr-exchanged heulandite: A single-crystal X-ray study American Mineralogist 88 527-53320030293
0002993Heulandite-SrDobelin N, Armbruster T (2003) Stepwise dehydration of Sr-exchanged heulandite: A single-crystal X-ray study American Mineralogist 88 527-53320030293
0002994Heulandite-SrDobelin N, Armbruster T (2003) Stepwise dehydration of Sr-exchanged heulandite: A single-crystal X-ray study American Mineralogist 88 527-53320030293
0002995Heulandite-SrDobelin N, Armbruster T (2003) Stepwise dehydration of Sr-exchanged heulandite: A single-crystal X-ray study American Mineralogist 88 527-53320030293
CIF Raw Data - click here to close

Geological EnvironmentHide

Type Occurrence of Heulandite-SrHide

Place of Conservation of Type Material:
No designated type specimen.
Geological Setting of Type Material:
In fractures of gabbroic rocks.

Synonyms of Heulandite-SrHide

Other Language Names for Heulandite-SrHide

Relationship of Heulandite-Sr 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-Na(Na,Ca,K)6(Si,Al)36O72 · 22H2OMon. m : Bm

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Heulandite-Sr associated with StrontianiteSrCO3
4 photos of Heulandite-Sr associated with CalciteCaCO3
4 photos of Heulandite-Sr associated with FluorapatiteCa5(PO4)3F
4 photos of Heulandite-Sr associated with Brewsterite-Sr(Sr,Ba,Ca)[Al2Si6O16] · 5H2O
3 photos of Heulandite-Sr associated with Chabazite
3 photos of Heulandite-Sr associated with HydrozinciteZn5(CO3)2(OH)6
3 photos of Heulandite-Sr associated with Thomsonite Subgroup
3 photos of Heulandite-Sr associated with Wakefieldite-(Ce)Ce(VO4)
2 photos of Heulandite-Sr associated with Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
2 photos of Heulandite-Sr associated with Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)

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-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-Na(Na,Ca,K)6(Si,Al)36O72 · 22H2OMon. 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-SrHide

References for Heulandite-SrHide

Reference List:

Localities for Heulandite-SrHide

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.
Antarctica
 
  • Western Antarctica
    • Antarctic Peninsula
      • South Shetland Islands
        • King George Island
Soto et al. (2014)
Canada
 
  • British Columbia
    • Osoyoos Mining Division
      • Olalla
Tschernich (1992)
Italy (TL)
 
  • Liguria
    • Genoa
      • Castiglione Chiavarese
        • Campegli
Lucchetti et al. (1982) +1 other reference
Japan
 
  • Kochi Prefecture
Minakawa et al (2002)
Norway
 
  • Innlandet
    • Sel
Green et al. (2008)
  • Nordland
    • Fauske
      • Sulitjelma
Nordrum +1 other reference
  • Vestland
    • Luster
      • Berdalen
        • Hurrungane
Nordrum et al. (2005)
Russia
 
  • Murmansk Oblast
    • Lovozersky District
      • Seidozero Lake
Yakovenchuk et al. (2007)
Pekov (2000)
UK
 
  • Scotland
    • Highland
      • Fort William and Ardnamurchan
        • Strontian
Wolfe et al. (2008) +1 other reference
USA
 
  • California
    • San Bernardino County
      • Ord Mining District
        • Ord Mountains
          • Ord Mountain
            • Ord Mountain Mine (Ord Mountain Mine System; Ord Mine; Ord Mountain deposits; Osborn; Rio Vista claim; Brilliant claim; Josephine claim; Belgium claim; Copper Junction claim)
MarekC personal collection 2014
 
Mineral and/or Locality  
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