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SiO2 · n(CH4, C2H6, C3H8, i-C4H10) (n = 3/17 (max))
Natural analogue of synthetic clathrate MTN.

Classification of Chibaite

Approved 2009 URL:
Please feel free to link to this page.

Type Occurrence of Chibaite

Crystallography of Chibaite

Crystal System:
Class (H-M):
m3 (2/m 3) - Diploidal
Space Group:
Cell Parameters:
a = 19.3742(4) Å
Unit Cell Volume:
V 7,272.29 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
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

SiO2 · n(CH4, C2H6, C3H8, i-C4H10) (n = 3/17 (max))
All elements listed in formula:

Other Names for Chibaite

Name in Other Languages:

Other Information

Health Risks:
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., 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

Localities for Chibaite

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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 (TL)
  • Honshu Island
    • Kanto region
      • Chiba prefecture
        • Minamiboso city
IMA website - approvals March 2009
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