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Frankhawthorneite

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Frank Hawthorne
Formula:
Cu2Te6+O4(OH)2
System:
Monoclinic
Lustre:
Vitreous
Hardness:
3 - 3½
Name:
Named in honour of Frank Christopher Hawthorne (b. 1946), Professor of Mineralogy, University of Manitoba, Winnipeg, Manitoba, for his significant contributions to the science of structural and experimental mineralogy and crystallography, especially the crystal chemistry of the amphibole group and oxysalt minerals. Hawthorne has been the author or coauthor of more papers in mineralogy and crystallography than any other scientist and received numerous international honours.
This page provides mineralogical data about Frankhawthorneite.

Classification of Frankhawthorneite

Approved
4.FD.25

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
D : Hydroxides with OH, without H2O; chains of edge-sharing octahedra
Dana 7th ed.:
33.1.4.1
33.1.4.1

33 : SELENATES AND TELLURATES
1 : (AB)m(XO4)pZq
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First Recorded Occurrence of Frankhawthorneite

Year of Discovery:
1995

Physical Properties of Frankhawthorneite

Vitreous
Hardness (Mohs):
3 - 3½

Crystallography of Frankhawthorneite

Crystal System:
Monoclinic
Cell Parameters:
a = 9.1Å, b = 5.21Å, c = 4.6Å
β = 98.74°
Ratio:
a:b:c = 1.747 : 1 : 0.883
Unit Cell Volume:
V 215.56 ų (Calculated from Unit Cell)

Optical Data of Frankhawthorneite

Type:
Biaxial
Dispersion:
relatively weak

Chemical Properties of Frankhawthorneite

Formula:
Cu2Te6+O4(OH)2
Essential elements:
All elements listed in formula:

Relationship of Frankhawthorneite to other Species

4.FD.05SpertiniiteCu(OH)2
4.FD.10BracewelliteCrO(OH)
4.FD.10DiasporeAlO(OH)
4.FD.10GroutiteMn3+O(OH)
4.FD.10GuyanaiteCrO(OH)
4.FD.10Montroseite(V3+,Fe3+)O(OH)
4.FD.10TsumgalliteGaO(OH)
4.FD.15ManganiteMn3+O(OH)
4.FD.20Yttrotungstite-(Y)YW2O6(OH)3
4.FD.20Yttrotungstite-(Ce)(Ce,Nd,Y)W2O6(OH)3
4.FD.20Unnamed (Nd-analogue of Yttrotungstite-(Ce))(Nd,Ce,La)W2O6(OH)3
4.FD.30KhinitePb2+Cu32+[Te6+O6](OH)2
4.FD.30Khinite-3TPb2+Cu32+Te6+O6(OH)2

Other Names for Frankhawthorneite

Name in Other Languages:

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Frankhawthorneite

Reference List:
ROBERTS, A.C., GRICE, J.D., CRIDDLE, A.J., JENSEN, M.C. HARRIS, D.C. & MOFFATT, E.A. (1995): Frankhawthorneite, Cu2Te6+O4(OH)2, a new mineral species from the Centennial Eureka mine, Tintic District, Juab Co., Utah, USA. Canadian Mineralogist 33, 641-647.

Internet Links for Frankhawthorneite

Localities for Frankhawthorneite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
USA
 
  • California
    • San Bernardino Co.
      • Baker
        • Otto Mountain
Jerry A. Baird collected mineral ID by Anthony R. Kampf PhD
  • Utah
    • Juab Co.
      • East Tintic Mts
        • Tintic District
          • Eureka
ROBERTS, A.C., GRICE, J.D., CRIDDLE, A.J., JENSEN, M.C. HARRIS, D.C. & MOFFATT, E.A. (1995): Frankhawthorneite, Cu2Te6+O4(OH)2, a new mineral species from the Centennial Eureka mine, Tintic District, Juab Co., Utah, USA. Canadian Mineralogist 33, 641-647.
Mineral and/or Locality  
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