Frankhawthorneite

Frankhawthorneite Cu2Te6+O4(OH)2 is a monoclinic copper tellurate mineral (space group P21/n) named after Prof. Frank Christopher Hawthorne (born 1946), University of Manitoba, Winnipeg, Canada. It was discovered at Centennial Eureka Mine, Tintic District, East Tintic Mountains, Juab County, Utah, in 1995. It has a leaf green color.[4]

Frankhawthorneite
General
CategoryTellurate mineral
Formula
(repeating unit)		Cu2Te6+O4(OH)2
IMA symbolFht[1]
Strunz classification4.FD.25
Dana classification33.1.4.1
Crystal systemMonoclinic
Crystal classPrismatic (2/m)
(same H-M symbol)
Space groupP21/n
Identification
ColorMedium leaf-green
FractureUneven
TenacityBrittle
Mohs scale hardness3-4
LusterVitreous
StreakPale ;eaf-green
DiaphaneityTransparent
Specific gravity5.43
Refractive index2.00
References[2][3]

See also

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. Anthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; Nichols, Monte C. (2005). "Frankhawthorneite" (PDF). Handbook of Mineralogy. Mineral Data Publishing. Retrieved 14 March 2022.
  3. Hawthorneite, Mindat.org
  4. Grice, J.D.; Roberts, A.C. (1995). "Frankhawthorneite, a unique HCP framework structure of a cupric tellurate". The Canadian Mineralogist. 33: 649–653. Retrieved 30 December 2020.


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