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[1] |
| Crystal system | Monoclinic |
| Identification | |
| Mohs scale hardness | 5½ |
| Lustre | Vitreous |
| Streak | Pale blue-grey |
Name
[edit]The mineral is named after Howard James Winch, who was the one discovered it in Madhya Pradesh, India.[3] Sir Lewis Fermor was the one who named the mineral.[4]
Winchite is also called Aluminowinchite or Eckrite.[3]
Chemistry
[edit]Winchite has a chemical composition similar to tremolite. But it contains iron, potassium, sodium, and manganese.[5]
Occurrence
[edit]Winchite occurs on grains of riebeckite.[6]: 137 It can be found in schist with metamorphosed manganese deposits.[7]
Distribution
[edit]It has been found on the south eastern part of Anglesey.[2] It has been found in Kajlidongri mine located in India as well at Ward creek in California.[7]
References
[edit]- ↑ 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.