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Chibaite

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Formula:
SiO
 
2
· n(CH
 
4
, C
 
2
H
 
6
, C
 
3
H
 
8
, i-C
 
4
H
 
10
) (n = 3/17 (max))
System:Isometric


Natural analogue of synthetic clathrate MTN.

Classification of Chibaite

IMA status:Approved 2009
mindat.org URL:http://www.mindat.org/min-39335.html
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Type Occurrence of Chibaite

Type Locality:Arakawa, Minamiboso city, Chiba prefecture, Kanto region, Honshu Island, Japan

Crystallography of Chibaite

Crystal System:Isometric
Class (H-M):m3 (2/m 3) - Diploidal
Space Group:Fd3
Cell Parameters:a = 19.3742(4) Å
Unit Cell Volume:V 7,272.29 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
11.210 (24)
6.858 (38)
5.847 (83)
4.847 (24)
3.956 (25)
3.730 (91)
3.426 (40)
3.276 (100)

Chemical Properties of Chibaite

Formula:
SiO
 
2
· n(CH
 
4
, C
 
2
H
 
6
, C
 
3
H
 
8
, i-C
 
4
H
 
10
) (n = 3/17 (max))
Simplified for copy/paste:SiO2·n(CH4, C2H6, C3H8, i-C4H10) (n = 3/17 (max))
Essential elements:C, H, O, Si
All elements listed in formula:C, H, O, Si

Other Names for Chibaite

Synonyms:
IMA2008-067
Other Languages:
Japanese:千葉石

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.

References for Chibaite

Reference List:

- +
IMA website - approvals March 2009

Momma, K., Nishikubo, K., Takada, M., Takahashi, N., Honma, C., Nagase, T., Kudoh, Y. and Ikeda, T. (2008) A clathrate mineral from Arakawa, Chiba Prefecture, Japan.

Momma, K., et al (2011) New silica clathrate minerals that are isostructural with natural gas hydrates. Nature Communications 2, Article number 196.

Internet Links for Chibaite

Search Engines:
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  • External Links:
  • Look for Chibaite on Webmineral
  • Look for Chibaite on Athena Mineralogy
  • Look for Chibaite on Wikipedia
  • Look for Chibaite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
  • Find Chibaite on www.crystalclassics.co.uk
  • Rare and Unusual minerals at Mineralogical Research Company
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  • Localities for Chibaite

    (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.
    Japan
     
    • Honshu Island
      • Kanto region
        • Chiba prefecture
          • Minamiboso city
    IMA website - approvals March 2009
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