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Baumite

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
[O|(OH)
 
2
|SiO
 
4
]
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

Search Engines:
  • Look for Baumite on Google
  • Look for Baumite images on Google
    • Mineral Dealers:
  • Rare and Unusual minerals at Mineralogical Research Company
  • Wilensky Fine Minerals
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Wendel Minerals - Auktion & Shop
  • Buy from David K Joyce minerals
  • High-end worldwide specimens & outstanding customer service
  • Buy Fine Minerals from mineralsweb.com
  • Buy fine minerals and gemstones from Pala International
  • Lapis Mineral Magazin
  • SpiriferMinerals.com - high quality specimens
  • Find Baumite on www.crystalclassics.co.uk
  • Fabre Minerals - search for Baumite specimens
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    Localities for Baumite

    (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.
    Mineral and/or Locality
    Google
     
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