Bariumbannisterite Mineral Data

[Minerals] [Gems] [Sale Items] [Gold Rings] [Big Stuff] [Main Page]
Shop early for Holiday Season and get the best stuff.
You can put it on layaway for up to six weeks!

General Bariumbannisterite Information

Chemical Formula:

(K,H3O)(Ba,Ca)(Mn++,Fe++,Mg)21(Si,Al)32O80(O,OH)16•4-12(H2O)

Composition:

Molecular Weight = 3,648.84 gm

Potassium 0.80 % K 0.97 % K₂O

Barium 2.82 % Ba 3.15 % BaO

Calcium 0.27 % Ca 0.38 % CaO

Magnesium 2.00 % Mg 3.31 % MgO

Manganese 21.08 % Mn 27.22 % MnO

Aluminum 2.96 % Al 5.59 % Al₂O₃

Iron 6.12 % Fe 7.88 % FeO

Silicon 21.55 % Si 46.11 % SiO₂

Hydrogen 0.19 % H 1.67 % H₂O

Oxygen 42.20 % O

______ ______

100.00 % 96.27 % = TOTAL OXIDE

Empirical Formula:

K_0.75(H₃O)_0.25Ba_0.75Ca_0.25Mn²⁺₁₄Fe²⁺₄Mg₃Si₂₈Al₄O₉₀(OH)₆

IMA Status:

Not Approved IMA

Locality:

Link to MinDat.org Location Data.

Name Origin:

Named as the barium analog of bannisterite.

Synonym:

Bannisterite - Barium rich

Search for Bariumbannisterite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Bariumbannisterite Crystallography

Crystal System:

Monoclinic

Physical Properties of Bariumbannisterite

Cleavage:

{???} Perfect

Color:

Dark brown.

Hardness:

4 - Fluorite

Optical Properties of Bariumbannisterite

Optical Data:

Calculated Properties of Bariumbannisterite

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_{Bariumbannisterite}= 19.95 barns/electron
U=PE_{Bariumbannisterite} x r_electron= . barns/cc.

Radioactivity:

GRapi = 11.29 (Gamma Ray American Petroleum Institute Units)
Concentration of Bariumbannisterite per GRapi unit = 8.86 (%)

Estimated Radioactivity from Bariumbannisterite - barely detectable

Bariumbannisterite Classification

Dana Class:

71.00.00.00 (71)Phyllosilicate Minerals

(71.00)Without Dana Classification Numbers

(71.00.00)Phyllosilicate Modulated Layers

71.00.00.00 Bariumbannisterite* (K,H3O)(Ba,Ca)(Mn,Fe,Mg)21(Si,Al)32O80(O,OH)16•4-12(H2O) Mono

71.00.00.00 Ekmanite? (Fe,Mg,Mn,Fe)3(Si,Al)4O10(OH)2•2(H2O) Unk Ortho

71.00.00.00 Griffithite* 4(Mg,Fe,Ca)O.(Al,Fe)2O3.5SiO2•7(H2O) Mono

71.00.00.00 Orlovite KLi2TiSi4O11F C 2 2

71.00.00.00 Shlykovite KCa[Si4O9(OH)]•3H2O P 2₁/c 2/m

71.00.00.00 Spodiophyllite? (Na,K)4(Mg,Fe)3(Fe,Al)2(Si8O24) Mono

71.00.00.00 Voloshinite Rb(LiAl1.5[]0.5)(Al0.5Si3.5)O10F2 C 2/c 2/m

Strunz Class:

09.EG.07.5 09 - SILICATES (Germanates)

09.E - Phyllosilicates

09.EG -Double nets with 6-membered and larger rings

09.EG.07.5 Bariumbannisterite* (K,H3O)(Ba,Ca)(Mn,Fe,Mg)21(Si,Al)32O80(O,OH)16•4-12(H2O) Mono

Other Bariumbannisterite Information

References:

PHYS. PROP.(Am.Min.,Vol.75,p936,1990)

See Also:

Links to other databases for Bariumbannisterite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Bariumbannisterite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Bariumbannisterite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Bariumbannisterite Mineral Data :

Ask about Bariumbannisterite 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 Español

Print or Cut-and-Paste your Bariumbannisterite Specimen Label here :

Bariumbannisterite

(K,H3O)(Ba,Ca)(Mn++,Fe++,Mg)21(Si,Al)32O80(O,OH)16•4-12(H2O)
Dana No: 71.00.00.00 Strunz No: 09.EG.07.5
Locality:

Notes: