Winchite

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Winchite
Hackmanite, winchite 1.JPG
General
Category Minerals
IMA symbol Wnc [1]
Crystal system Monoclinic
Identification
Mohs scale hardness5½
Lustre Vitreous
Streak Pale blue-grey

Winchite is a mineral in the amphibole group. [2]

Name

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]

Contents

Winchite is also called Aluminowinchite or Eckrite. [3]

Chemistry

Winchite has a chemical composition similar to tremolite. But it contains iron, potassium, sodium, and manganese. [5]

Occurrence

Winchite occurs on grains of riebeckite. [6] : 137  It can be found in schist with metamorphosed manganese deposits. [7]

Distribution

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

  1. ↑ 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.
  2. 1 2 "Mineral Database - Mineralogy of Wales". National Museum Wales. Retrieved 2021-11-07.
  3. 1 2 "Winchite". www.mindat.org. Retrieved 2021-11-07.
  4. ↑ "End Member". CiteSeerX   10.1.1.602.4009 .
  5. ↑ Mineralogical Magazine. Oxford University Press. 1907. p. 413.
  6. ↑ 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.
  7. 1 2 "Winchite [NaCa][(Mg; Fe2+)4Al]Si8O22(OH)2" (PDF). Retrieved 2023-10-06.
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