{{Short description|Mineral}} {{Lead too short|date=November 2021}}{{Infobox mineral|image=File:Hackmanite, winchite 1.JPG| IMAsymbol = Wnc<ref>{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3|pages=291–320|doi=10.1180/mgm.2021.43|bibcode=2021MinM...85..291W|s2cid=235729616|doi-access=free}}</ref>|system=Monoclinic|mohs=5½|streak=Pale blue-grey|lustre=Vitreous}}
'''Winchite''' is a mineral in the amphibole group.<ref name=":0">{{Cite web|title=Mineral Database - Mineralogy of Wales|url=https://museum.wales/mineralogy-of-wales/database/?mineral=234&name=Winchite|access-date=2021-11-07|website=National Museum Wales|language=en}}</ref>
== Name == The mineral is named after Howard James Winch, who was the one discovered it in Madhya Pradesh, India.<ref name=":2">{{Cite web|title=Winchite|url=https://www.mindat.org/min-4296.html|access-date=2021-11-07|website=www.mindat.org}}</ref> Sir Lewis Fermor was the one who named the mineral.<ref>{{Cite CiteSeerX|citeseerx=10.1.1.602.4009|title=End Member}}</ref>
Winchite is also called Aluminowinchite or Eckrite.<ref name=":2" />
== Chemistry == Winchite has a chemical composition similar to tremolite. But it contains iron, potassium, sodium, and manganese.<ref>{{Cite book|url=https://books.google.com/books?id=xFIPAAAAIAAJ&q=Winchite|title=Mineralogical Magazine|date=1907|publisher=Oxford University Press|pages=413|language=en}}</ref>
== Occurrence == Winchite occurs on grains of riebeckite.<ref>{{Cite book|last1=Ring|first1=Uwe|url=https://books.google.com/books?id=KxnB3szzvzgC&dq=winchite&pg=PA140|title=Exhumation Processes: Normal Faulting, Ductile Flow and Erosion|last2=London|first2=Geological Society of|last3=Brendan|first3=M. T.|last4=Lister|first4=G.|last5=Willett|first5=Sean D.|date=1999|publisher=Geological Society of London|isbn=978-1-86239-032-4|language=en}}</ref>{{Rp|137}} It can be found in schist with metamorphosed manganese deposits.<ref name=":1" />
== Distribution == It has been found on the south eastern part of Anglesey.<ref name=":0" /> It has been found in Kajlidongri mine located in India as well at Ward creek in California.<ref name=":1">{{cite web|url=https://www.handbookofmineralogy.org/pdfs/winchite.pdf | access-date=2023-10-06| title=Winchite [NaCa][(Mg; Fe2+)4Al]Si8O22(OH)2}}</ref>
== References == <references />
Category:Monoclinic minerals Category:Amphibole group Category:Calcium minerals Category:Sodium minerals