Mineralogy Database

Heulandite-Ba Mineral Data

Search Webmineral :
  
Advertisment

General Heulandite-Ba Information

Help on Chemical  Formula: Chemical Formula: (Ba,Ca,K,Na,Sr)5Al9Si27O72•22(H2O)
Help on Composition: Composition: Molecular Weight = 2,990.65 gm
   Potassium   0.48 %  K     0.58 % K2O
   Barium     11.43 %  Ba   12.77 % BaO
   Sodium      0.25 %  Na    0.34 % Na2O
   Strontium   0.88 %  Sr    1.04 % SrO
   Calcium     1.89 %  Ca    2.64 % CaO
   Aluminum    8.08 %  Al   15.27 % Al2O3
   Silicon    25.36 %  Si   54.25 % SiO2
   Hydrogen    1.47 %  H    13.10 % H2O
   Oxygen     50.15 %  O
             ______        ______ 
             100.00 %       99.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba2.49Ca1.41Sr0.3K0.37Na0.33Al8.96Si27O72•21.75(H2O)
Help on Environment: Environment: Accessory mineral in hydrothermal veins of the Kongsberg silver deposit type. Chemical zoning is frequent, with transitions to heulandite-Ca and heulandite-Sr.
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Northern Ravn�s prospect, southern Vinoren, 14 km NNW of Kongsberg town, Kongsberg ore district, Flesberg community, Buskerud county, Norway. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Ba-dominant analogue of heulandite (heulandite-Ca).
Help on Name Pronunciation: Name Pronunciation: Heulandite-Ba + Pronunciation Say HEULANDITE-BA
Help on Synonym: Synonym: IMA2003-001
 

Heulandite-Ba Image

Click Here for Larger   Image in a New Browser Window Images:
Click Here for Larger   Image

  Heulandite-Ba

Comments: BSE image of a heulandite crystal. Darker areas are enriched in Ca and Sr, while lighter areas are enriched in Ba. (Eur. J. Mineral, v17:143).
Location: Northern Ravnås silver prospect, southern Vinoren, Flesberg community, Buskerud county, Norway. Scale: Scale bar is 0.1 mm.
© Eur. J. Mineral

Heulandite-Ba Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9933:1:0.4154
Help on Cell Dimensions: Cell Dimensions: a = 17.738, b = 17.856, c = 7.419, Z = 1; beta = 116.55° V = 2,102.02 Den(Calc)= 2.36
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.973(1)(151), 3.978(0.97)(131), 4.65(0.66)(131),7.941(0.66)(200), 2.807(0.65)(621), 5.12(0.59), 3.181(0.56),
 

Physical Properties of Heulandite-Ba

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Colorelss, White, Yellowish white, Pale biege.
Help on Density: Density: 2.35
Help on Diaphaneity: Diaphaneity: Translucent to transparent
Help on Fracture: Fracture: Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces.
Help on Habit: Habit: Blocky - Crystal shape tends to be equant (e.g. feldspars).
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Heulandite-Ba

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.011 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2157,KPDmeas= 0.2166,KC= 0.2142
Ncalc = 1.5 - 1.51
Help on Optical Data: Optical Data: Biaxial (+), a=1.5056, b=1.5064, g=1.515, bire=0.0094, 2V(Calc)=36, 2V(Meas)=38. Dispersion r > v distinct.
 

Calculated Properties of Heulandite-Ba

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.33 gm/cc
note: Specific Gravity of Heulandite-Ba =2.36 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEHeulandite-Ba = 48.87 barns/electron
U=PEHeulandite-Ba x relectron= 113.98 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 6.92 (Gamma Ray American Petroleum Institute Units)
Concentration of Heulandite-Ba per GRapi unit = 14.46 (%)

Estimated Radioactivity from Heulandite-Ba - barely detectable

 

Heulandite-Ba Classification

Help on  Dana Class: Dana Class: 77.01.04.01d (77)Tectosilicate Zeolite group
  (77.01)true zeolites
  (77.01.04)Heulandite and related species
 
77.01.04.01 Heulandite-Ca (Ca,Na)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono
 
77.01.04.01a Heulandite-Na! (Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono
 
77.01.04.01b Heulandite-K! (K,Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 2/m
 
77.01.04.01c Heulandite-Sr! (Sr,Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono
 
77.01.04.01d Heulandite-Ba! (Ba,Ca,K,Na,Sr)5Al9Si27O72•22(H2O) C 2/m 2/m
 
77.01.04.02 Clinoptilolite-K (Na,K,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, C 2, Cm Mono
 
77.01.04.02a Clinoptilolite-Na! (Na,K,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, C 2, Cm Mono
 
77.01.04.02b Clinoptilolite-Ca! (Ca,Na,K)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m 2/m
 
77.01.04.03 Stilbite-Ca NaCa4[Al8Si28O72]•n(H2O)(n=28-32) C 2/m 2/m
 
77.01.04.03a Stilbite-Na! Na3Ca3[Al8Si28O72]•n(H2O)(n=28-32) C 2/m 2/m
 
77.01.04.04 Stellerite CaAl2Si7O18•7(H2O) F mmm 2/m 2/m 2/m
 
77.01.04.05 Barrerite (Na,K,Ca)2Al2Si7O18•6(H2O) Amma or Ammm 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.GE.05 09 - SILICATES (Germanates)
  09.G - Tektosilicates with Zeolitic H2O
  09.GE -Chains of T10O20 Tetrahedra
 
09.GE.05 Clinoptilolite-Na! (Na,K,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, C 2, Cm Mono
 
09.GE.05 Clinoptilolite-K (Na,K,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, C 2, Cm Mono
 
09.GE.05 Clinoptilolite-Ca! (Ca,Na,K)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m 2/m
 
09.GE.05 Heulandite-Ca (Ca,Na)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono
 
09.GE.05 Heulandite-K! (K,Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 2/m
 
09.GE.05 Heulandite-Na! (Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono
 
09.GE.05 Heulandite-Sr! (Sr,Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono
 
09.GE.05 Heulandite-Ba! (Ba,Ca,K,Na,Sr)5Al9Si27O72•22(H2O) C 2/m 2/m
 

Other Heulandite-Ba Information

Help on References: References: NAME( EurJMin, 17:143) PHYS. PROP.(Collectors Book of Fluorescent Minerals) OPTIC PROP.(EurJMin, 17:143)
Help on See Also: See Also: Links to other databases for Heulandite-Ba :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Heulandite-Ba using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Heulandite-Ba :

Ask about Heulandite-Ba here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaol

Print or Cut-and-Paste your Heulandite-Ba Specimen Label here :

Heulandite-Ba

(Ba,Ca,K,Na,Sr)5Al9Si27O72•22(H2O)
Dana No: 77.01.04.01d Strunz No: 09.GE.05
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.