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Bariumbannisterite

Formula:
(K,H
 
3
O)(Ba,Ca)(Mn
2+
 
,Fe
2+
 
,Mg)
 
21
(Si,Al)
 
32
O
 
80
(O,OH)
 
16
·4-12H
 
2
O
System:MonoclinicHardness:4
This page provides mineralogical data about Bariumbannisterite.

Classification of Bariumbannisterite

Strunz 8th edition ID:8/H.17-20

8 : Silicates
H : Phyllosilicates (layered), Tetragonal or pseudotetragonal layered structures [Si4O10]4- and others
17 : Stilpnomelane series
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Physical Properties of Bariumbannisterite

Hardness (Mohs):4
Cleavage:Perfect
Perfect

Crystallography of Bariumbannisterite

Crystal System:Monoclinic

Chemical Properties of Bariumbannisterite

Formula:
(K,H
 
3
O)(Ba,Ca)(Mn
2+
 
,Fe
2+
 
,Mg)
 
21
(Si,Al)
 
32
O
 
80
(O,OH)
 
16
·4-12H
 
2
O
Essential elements:Ba, H, K, Mn, O, Si
All elements listed in formula:Al, Ba, Ca, Fe, H, K, Mg, Mn, O, Si

Relationship of Bariumbannisterite to other Species

Related Minerals - Strunz Grouping):

- +
8/H.17-10Bannisterite
Ca
 
0.5
(K,Na)
 
0.5
(Mn,Fe,Zn)
 
10
(Si,Al)
 
16
O
 
38
(OH)
 
8
·5.5H
 
2
O
8/H.17-30Lennilenapeite
K
 
6-7
(Mg,Mn,Fe,Zn)
 
48
(Si,Al)
 
72
(O,OH)
 
216
·16H
 
2
O
8/H.17-40Stilpnomelane
(K,Ca,Na)(Fe
2+
 
,Mg,Al,Fe
3+
 
)
 
8
(Si,Al)
 
12
(O,OH)
 
36
 · nH
 
2
O
8/H.17-45Franklinphilite
(K,Na)
 
4
(Mn,Zn,Mg,Fe)
 
48
(Si,Al)
 
72
(O,OH)
 
216
·6H
 
2
O
8/H.17-50Parsettensite
K
 
1.2
Mn
 
8
(Si,Al)
 
12
O
 
26
(OH)
 
10
8/H.17-55Middendorfite
K
 
3
Na
 
2
Mn
 
5
Si
 
12
(O,OH)
 
36
 · 2H
 
2
O
8/H.17-60Ganophyllite
(K,Na,Ca)
 
2
Mn
 
8
(Si,Al)
 
12
(O,OH)
 
32
·8H
 
2
O
8/H.17-70Eggletonite
(Na,K,Ca)
 
2
(Mn,Fe)
 
8
(Si,Al)
 
12
O
 
29
(OH)
 
7
·11H
 
2
O

Other Names for Bariumbannisterite

Other Languages:
German:Bariumbannisterit
Spanish:Bariumbannisterita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 16th Nov 2009 13:46:41