Frankhawthorneite
A valid IMA mineral species
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About Frankhawthorneite
Frank Hawthorne
Formula:
Cu2Te6+O4(OH)2
Colour:
Medium leaf-green
Lustre:
Vitreous
Hardness:
3 - 3½
Specific Gravity:
5.43 (Calculated)
Crystal System:
Monoclinic
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.
Unique Identifiers
Mindat ID:
6958
Long-form identifier:
mindat:1:1:6958:4
GUID
(UUID V4):
(UUID V4):
e80c78f8-c9e0-4d61-9c04-e14df1d17c9f
IMA Classification of Frankhawthorneite
Approved
First published:
1995
Classification of Frankhawthorneite
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
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
33 : SELENATES AND TELLURATES
1 : (AB)m(XO4)pZq
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Fht | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Frankhawthorneite
Vitreous
Transparency:
Transparent
Colour:
Medium leaf-green
Streak:
Pale leaf-green
Hardness:
3 - 3½ on Mohs scale
Tenacity:
Brittle
Fracture:
Irregular/Uneven
Density:
5.43 g/cm3 (Calculated)
Optical Data of Frankhawthorneite
Type:
Biaxial
Anisotropism:
: Weak, somber brown.
Bireflectance:
weak
Dispersion:
relatively weak
Colour in reflected light:
pale gray
Internal Reflections:
viridian-green
Comments:
n=2
Chemistry of Frankhawthorneite
Mindat Formula:
Cu2Te6+O4(OH)2
Elements listed:
Crystallography of Frankhawthorneite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 9.107 Å, b = 5.2113 Å, c = 4.605 Å
β = 98.74°
β = 98.74°
Ratio:
a:b:c = 1.748 : 1 : 0.884
Unit Cell V:
216.01 ų (Calculated from Unit Cell)
Z:
2
Comment:
Space Group: P21/n
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0005433 | Frankhawthorneite | Grice J D, Roberts A C (1995) Frankhawthorneite, a unique HCP framework structure of a cupric tellurate The Canadian Mineralogist 33 649-653 |  | 1995 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.598 Å | (100) |
| 2.891 Å | (70) |
| 4.337 Å | (60) |
| 3.838 Å | (50) |
| 4.506 Å | (40) |
| 1.834 Å | (40) |
| 1.713 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47e : [Vanadates, chromates, manganates] |
Type Occurrence of Frankhawthorneite
Place of Conservation of Type Material:
Canadian Geological Survey, Ottawa, Canada, 67263.
Associated Minerals at Type Locality:
Reference:
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.
Synonyms of Frankhawthorneite
Other Language Names for Frankhawthorneite
Common Associates
Associated Minerals Based on Photo Data:
| 2 photos of Frankhawthorneite associated with Mcalpineite | Cu3(Te6+O6) |
| 2 photos of Frankhawthorneite associated with Eurekadumpite | (Cu,Zn)16(TeO3)2(AsO4)3Cl(OH)18 · 7H2O |
| 2 photos of Frankhawthorneite associated with Quartz | SiO2 |
| 2 photos of Frankhawthorneite associated with Cesbronite | Cu2+3Te6+O4(OH)4 |
Related Minerals - Strunz-mindat Grouping
| 4.FD.05 | Spertiniite | Cu(OH)2 |
| 4.FD.10 | Bracewellite | CrO(OH) |
| 4.FD.10 | Diaspore | AlO(OH) |
| 4.FD.10 | Groutite | Mn3+O(OH) |
| 4.FD.10 | Guyanaite | CrO(OH) |
| 4.FD.10 | Montroseite | (V3+,Fe3+)O(OH) |
| 4.FD.10 | Tsumgallite | GaO(OH) |
| 4.FD.15 | Manganite | Mn3+O(OH) |
| 4.FD.20 | Yttrotungstite-(Y) | YW2O6(OH)3 |
| 4.FD.20 | Yttrotungstite-(Ce) | (Ce,Nd,Y)W2O6(OH)3 |
| 4.FD.30 | Khinite | Pb2+Cu2+3[Te6+O6](OH)2 |
| 4.FD.30 | Khinite-3T | Pb2+Cu2+3Te6+O6(OH)2 |
| 4.FD.30 | Housleyite | Pb6CuTe6+4O18(OH)2 |
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.
Internet Links for Frankhawthorneite
mindat.org URL:
https://www.mindat.org/min-6958.html
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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. The Canadian Mineralogist, 33 (3) 641-647
Localities for Frankhawthorneite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
USA | |
| Jerry A. Baird collected mineral ID by ... |
| Kampf et al. (2022) |
| Coolbaugh et al. (2020) |
| Roberts et al. (1995) |
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Centennial Eureka Mine, Eureka, Tintic Mining District, Juab County, Utah, USA