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Baumite

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Formula:
(Mg,Al,Mn,Zn,Fe)
 
3
(Si,Al)
 
2
O
 
5
(OH)
 
4


Clark [1993, "Hey's Mineral Index"] reports this as a species, but Nickel & Nichols [1991, "Mineral Reference Manual"] regard it as 'a mixture of several serpentines and chlorites', quoting Frondel & Ito, [AmMin 1975]

Classification of Baumite

IMA status:Discredited
Hey's CIM Ref.:16.7.10

16 : Silicates Containing Aluminum and other Metals
7 : Aluminosilicates of Mg
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Chemical Properties of Baumite

Formula:
(Mg,Al,Mn,Zn,Fe)
 
3
(Si,Al)
 
2
O
 
5
(OH)
 
4
Essential elements:H, Mg, O, Si
All elements listed in formula:Al, Fe, H, Mg, Mn, O, Si, Zn

Relationship of Baumite to other Species

Related Minerals - Hey's Index Grouping:

- +
16.7.1Pyrope
Mg
 
3
Al
 
2
(SiO
 
4
)
 
3
16.7.2Sapphirine
(Mg,Fe)
 
4-x
Al
 
4+x
[Al
 
4+x
Si
 
2-x
O
 
18
]O
 
2
16.7.3Sapphirine-1A
(Mg,Al,Fe
2+
 
)
 
8
[(Al,Si,Fe
3+
 
)
 
6
O
 
18
]O
 
2
16.7.4Magnesiochloritoid
MgAl
 
2
(SiO
 
4
)O(OH)
 
2
16.7.5Kulkeite
Mg
 
8
Al(AlSi
 
7
O
 
20
)(OH)
 
10
16.7.6Palygorskite
(Mg,Al)
 
5
(Si,Al)
 
8
O
 
20
(OH)
 
2
 · 8H
 
2
O
16.7.7Saponite
Ca
 
0.25
(Mg,Fe)
 
3
((Si,Al)
 
4
O
 
10
)(OH)
 
2
 · nH
 
2
O
16.7.8Aliettite
Ca
 
0.2
Mg
 
6
((Si,Al)
 
8
O
 
20
)(OH)
 
4
 · 4H
 
2
O
16.7.9Montmorillonite
(Na,Ca)
 
0.33
(Al,Mg)
 
2
(Si
 
4
O
 
10
)(OH)
 
2
 · nH
 
2
O

Other Names for Baumite

Synonyms:
IMA1972-024
Other Languages:
German:Baumit
Spanish:Baumita

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.

Internet Links for Baumite

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    • Localities for Baumite

    The 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.
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    (TL) indicates type locality. ? 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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Ústí Region
        • Chomutov
    		Řehoř, M., Dvořák, Z.: Nové poznatky o mineralogii lokality Ahníkov. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1997, roč. 4-5, s. 183-185.
    Norway
     
    • Sør-Trøndelag
      • Oppdal
    		Witsø, Tor (1994): Oppdal. Et spennende geologisk område. Oppdal. 24 pp. Published by Fridtjov Witsø, Oppdal.
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