Winchite
 | This article's lead section may be too short to adequately summarize the key points. (November 2021) |
| Winchite | |
|---|---|
 | |
| General | |
| Category | Minerals |
| IMA symbol | Wnc |
| Crystal system | Monoclinic |
| Identification | |
| Mohs scale hardness | 5½ |
| Lustre | Vitreous |
| Streak | Pale blue-grey |
Winchite is a mineral in the amphibole group.
Name
The mineral is named after Howard James Winch, who was the one discovered it in Madhya Pradesh, India. Sir Lewis Fermor was the one who named the mineral.
Winchite is also called Aluminowinchite or Eckrite.
Chemistry
Winchite has a chemical composition similar to tremolite. But it contains iron, potassium, sodium, and manganese.
Occurrence
Winchite occurs on grains of riebeckite.: 137 It can be found in schist with metamorphosed manganese deposits.
Distribution
It has been found on the south eastern part of Anglesey. It has been found in Kajlidongri mine located in India as well at Ward creek in California.
References
- ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- 1 2 "Mineral Database - Mineralogy of Wales". National Museum Wales. Retrieved 2021-11-07.
- 1 2 "Winchite". www.mindat.org. Retrieved 2021-11-07.
- ↑ Fermor, Lewis Leigh (1904). "A new form of blue amphibole from Central India". Records of the Geological Survey of lndia. 31: 235–236.
- ↑ Mineralogical Magazine. Oxford University Press. 1907. p. 413.
- ↑ Ring, Uwe; London, Geological Society of; Brendan, M. T.; Lister, G.; Willett, Sean D. (1999). Exhumation Processes: Normal Faulting, Ductile Flow and Erosion. Geological Society of London. ISBN 978-1-86239-032-4.
- 1 2 "Winchite [NaCa][(Mg; Fe2+)4Al]Si8O22(OH)2" (PDF). Retrieved 2023-10-06.