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Metahalloysite

Formula:
Al
 
2
Si
 
2
O
 
5
(OH)
 
4


Can be considered a dehydrated halloysite.

Classification of Metahalloysite

Hey's CIM Ref.:15.9

15 : Silicates of Aluminum
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Chemical Properties of Metahalloysite

Formula:
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
Essential elements:Al, H, O, Si
All elements listed in formula:Al, H, O, Si

Relationship of Metahalloysite to other Species

Related Minerals - Hey's Index Grouping:
15.1Andalusite
Al
 
2
[O|SiO
 
4
]
15.2Kyanite
Al
 
2
[O|SiO
 
4
]
15.3Sillimanite
Al
 
2
[O|SiO
 
4
]
15.4Mullite
Al
 
8
[(O,OH,F)|(Si,Al)O
 
4
]
 
4
15.5Pyrophyllite
Al
 
2
Si
 
4
O
 
10
(OH)
 
2
15.6Dickite
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
15.7Nacrite
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
15.8Kaolinite
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
15.10Halloysite
Al
 
2
Si
 
2
O
 
5
(OH)
 
4
15.11Allophane
(Al
 
2
O
 
3
)(SiO
 
2
)
 
1.3-2
·2.5-3H
 
2
O

Other Names for Metahalloysite

Synonyms:
AlumyteHalloysite (of Hendricks)
German names:
Metahalloysit
Spanish names:
Metahalloysita

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 Metahalloysite

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  • Rare and Unusual minerals at Mineralogical Research Company
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Search for Metahalloysite at Thames Valley Minerals
  • Find Metahalloysite on www.crystalclassics.co.uk
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    Localities for Metahalloysite

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    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.
    Austria
     
    • Lower Austria
      • Waldviertel
        • Mühldorf
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    China
     
    • Hunan Province
      • Huaihua Prefecture
        • Chenxi Co.
    		Shu-Gen Zhang, Jun Ding, and Xiao-Hu Liu (2006): Journal of Central South University (Science and Technology) [Zhongnan Daxue Xuebao (Ziran Kexue Ban)] 37(5), 896-902
    France
     
    • Auvergne
      • Haute-Loire
        • Paulhaguet
          • Salzuit
        • Saint-Julien-Chapteuil
          • Le Pertuis
    		Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, p. 494.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
    Romania
     
    • Maramures Co.
      • Satu Mare
    		Clain, E. & Haake, R. (2006): Die Blei-Zink-Lagerstätte von Turt, Oasgebirge, Rumänien. Mineralien-Welt 17 (5), 52-64. (in German)
    Slovakia
     
    • Košice Region
      • Southern Vihorlat Mts
        • Michalovce
    		Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
    • Nitra Region
      • Štiavnické Mts
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    • Prešov Region
      • Northern Slanské Mts
        • Červenica (Czerwenitza)
          • Dubník
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
    USA
     
    • Virginia
      • Albemarle Co.
        • Charlottesville
    		Minerals of Virginia, 1990 by R. V. Dietrich
      • Amherst Co.
        • Roseland
    		Minerals of Virginia, 1990 by R. V. Dietrich
      • Campbell Co.
        • Alta Vista
    		Minerals of Virginia, 1990 by R. V. Dietrich
      • Nelson Co.
    		Minerals of Virginia, 1990 by R. V. Dietrich
    Mineral and/or Locality
    Google
     
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