Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Heulandite-Ba

This page is currently not sponsored. Click here to sponsor this page.
Formula:
(Ba,Ca,K)5(Si27Al9)O72 · 22H2O
System:
Monoclinic
Colour:
Colourless to white, ...
Lustre:
Vitreous, Pearly
Hardness:
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 Ba. Despite having an international reputaion, there are no known images of Henry Heuland.
The barium analogue of Heulandite-Ca, Heulandite-K, Heulandite-Na, and Heulandite-Sr.


Classification of Heulandite-Ba

Approved
Approval Year:
2003
9.GE.05

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
E : Chains of T10O20 Tetrahedra

Physical Properties of Heulandite-Ba

Vitreous, Pearly
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Colourless to white, Pale yellowish-white, Pale beige
Streak:
White
Hardness (Mohs):
Cleavage:
Perfect
Perfect on the {010}
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
2.35 g/cm3 (Measured)    2.35 g/cm3 (Calculated)

Optical Data of Heulandite-Ba

Type:
Biaxial (+)
RI values:
nα = 1.506 nβ = 1.506 nγ = 1.515
2V:
Measured: 38° , Calculated: 34°
Max Birefringence:
δ = 0.009
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of Heulandite-Ba

Formula:
(Ba,Ca,K)5(Si27Al9)O72 · 22H2O
Elements listed in formula:

Crystallography of Heulandite-Ba

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 17.738 Å, b = 17.856 Å, c = 7.419 Å
β = 116.55°
Ratio:
a:b:c = 0.993 : 1 : 0.415
Unit Cell Volume:
V 2,102.02 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
d-spacingIntensity
7.94 (66)
5.12 (59)
4.65 (66)
3.978 (97)
3.181 (56)
2.973 (100)
2.807 (65)

Type Occurrence of Heulandite-Ba

Relationship of Heulandite-Ba to other Species

Other Members of Group:
Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
Heulandite-K(K,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
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-K(K,Ca,Na)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.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

Other Names for Heulandite-Ba

Name in Other Languages:

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-Ba

Reference List:
Merkle, A.B. and 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.

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

Larsen, Alf Olav; Nordrum, Fred Steinar; Döbelin, Nicola; Armbruster, Thomas; Petersen, Ole V.; Erambert, Muriel (2005): Heulandite-Ba, a new zeolite species from Norway. European Journal of Mineralogy, 17, 143-154.

Internet Links for Heulandite-Ba

mindat.org URL:
https://www.mindat.org/min-25719.html
Please feel free to link to this page.

Localities for Heulandite-Ba

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
 
  • Alberta
Tschernich, R. (1992): Zeolites of the World, p.254
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Pardubice Region
Prachař, I.: Současný stav výskytu nerostů ve Chvaleticích. Acta musei Reginaehradecensis, série A: vědy přírodní, 1981, roč. XVI., s. 99-102.
Japan
 
  • Shikoku Island
    • Kochi Prefecture
Minakawa et al (2002) Strontian and Barian heulandite in sandy stone from the Shimanto formation and Izumi formation, Shikoku. (2002 annual meeting of JAMPEG, 282)
Norway (TL)
 
  • Buskerud
    • Flesberg
      • Svene
        • Kongsberg Silver Mining District
          • Vinoren Silver Mine Field
            • Vinoren Southern Mines
Larsen, A.O., Nordrum,F.S., Döbelin, N., Armbruster, T., Petersen, O.V. & Erambert, M.(2005): Heulandite-Ba, a new zeolite species from Norway. European Journal of Mineralogy, 17, 143-153
    • Kongsberg
      • Kongsberg Silver Mining District
        • Overberget Mining Field
Larsen, A.O., Nordrum,F.S., Döbelin, N., Armbruster, T., Petersen, O.V. & Erambert, M.(2005): Heulandite-Ba, a new zeolite species from Norway. European Journal of Mineralogy, 17, 143-153; 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
  • Oppland
    • Sel
      • Sjoa
Larsen, A.O., Nordrum,F.S., Döbelin, N., Armbruster, T., Petersen, O.V. & Erambert, M.(2005): Heulandite-Ba, a new zeolite species from Norway. European Journal of Mineralogy, 17, 143-153
    • Valdres
      • Vang
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
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2017, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: April 27, 2017 06:26:20 Page generated: April 22, 2017 17:44:28
Go to top of page