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Wollastonite-7Å

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Formula:
CaSiO3
Colour:
White
Lustre:
Vitreous
Hardness:
5
Crystal System:
Triclinic
Name:
Named after William Hyde Wollaston (1766-1828), English chemist and mineralogist who discovered palladium (1804) and rhodium (1809) and invented the reflecting goniometer (1809) and the camera lucida (1812).
A polytype of Wollastonite

The polytype wollastonite-7A (also known as -7T) was originally described from Fuka mine, Bitchu-cho (Bicchu-cho), Takahashi, Okayama Prefecture, Chugoku Region, Honshu Island, Japan.


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Physical Properties of Wollastonite-7ÅHide

Vitreous
Colour:
White
Streak:
White
Hardness:

Chemical Properties of Wollastonite-7ÅHide

Formula:
CaSiO3

Crystallography of Wollastonite-7ÅHide

Crystal System:
Triclinic

Synonyms of Wollastonite-Hide

Other Language Names for Wollastonite-Hide

Other InformationHide

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 Wollastonite-7ÅHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Henmi, C., Kusachi, I., Kawahara, A., and Henmi, K. (1978) 7T wollastonite from Fuka, Okayama Prefecture. Mineralogical Journal: 9: 169-181.

Internet Links for Wollastonite-7ÅHide

Localities for Wollastonite-7ÅHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Japan
 
  • Honshu Island
    • Chugoku Region
      • Hiroshima prefecture
        • Hiba-gun
Henmi, C., Kawahara, A., Henmi, K., Kusachi, I., and Takeuchi, Y. (1983) The 3T, 4T and 5T polytypes of the wollastonite from Kushiro, Hiroshima Prefecture, Japan. American Mineralogist: 68: 156-163.
      • Okayama Prefecture
        • Takahashi City
          • Bicchu-cho (Bitchu-cho)
            • Fuka
Henmi, C., Kusachi, I., Kawahara, A., & Henmi, K. (1978). 7T wollastonite from Fuka, Okayama Prefecture. Mineralogical Journal, 9(3), 169-181.
Mineral and/or Locality  
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