Tedhadleyite
A valid IMA mineral species
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About Tedhadleyite
Formula:
[Hg2]2+5Hg2+I2(Cl,Br)2O4
Colour:
Dark red - black
Lustre:
Adamantine, Sub-Metallic
Specific Gravity:
9.43 (Calculated)
Crystal System:
Triclinic
Name:
Named in honor of Ted A. Hadley (b. 1961), amateur mineral collector of Sunnyvale, California. He helped collect the mercury bearing samples that included the type specimen. He was also president of the Bay Area Mineralogists.
Unique Identifiers
Mindat ID:
10654
Long-form identifier:
mindat:1:1:10654:0
GUID
(UUID V4):
(UUID V4):
136d3570-c657-44c3-8605-3ece9fdae7c0
IMA Classification of Tedhadleyite
Approved
IMA Formula:
Hg2+Hg1+10O4I2(Cl,Br)2
Approval year:
2001
First published:
2002
Approval history:
IMA2001-035
Type description reference:
Roberts, Andrew C., Cooper, Mark A., Hawthorne, Frank C., Criddle, Alan J., Stirling, John A.R., Dunning, Gail E. (2002) Tedhadleyite, Hg2+Hg1+10O4I2(Cl,Br)2, a new mineral species from the Clear Creek Claim, San Benito, California. The Canadian Mineralogist, 40 (3) 909-914 doi:10.2113/gscanmin.40.3.909
Classification of Tedhadleyite
3.DD.40
3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
D : With Hg
3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
D : With Hg
10.6.14.
10 : OXYHALIDES AND HYDROXYHALIDES
6 : AmBn(O,OH)pXq
10 : OXYHALIDES AND HYDROXYHALIDES
6 : AmBn(O,OH)pXq
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 |
---|---|---|
Ted | 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 Tedhadleyite
Adamantine, Sub-Metallic
Transparency:
Translucent, Opaque
Colour:
Dark red - black
Streak:
Red
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
Poor {010}
Poor {010}
Fracture:
Irregular/Uneven
Density:
9.43 g/cm3 (Calculated)
Optical Data of Tedhadleyite
Anisotropism:
Moderate
Reflectivity:
Wavelength | R1 | R2 |
---|---|---|
400nm | 28.25% | 29.40% |
420nm | 28.00% | 29.30% |
440nm | 27.60% | 29.50% |
460nm | 27.40% | 29.85% |
470nm | 27.20% | 30.00% |
480nm | 26.70% | 29.90% |
500nm | 26.20% | 29.50% |
520nm | 25.35% | 28.80% |
540nm | 24.60% | 27.70% |
546nm | 24.40% | 27.60% |
560nm | 23.85% | 26.90% |
580nm | 23.10% | 25.90% |
589nm | 22.80% | 25.40% |
600nm | 22.60% | 25.15% |
620nm | 22.20% | 24.35% |
640nm | 21.80% | 24.00% |
650nm | 21.60% | 23.90% |
660nm | 21.50% | 23.80% |
680nm | 21.15% | 23.70% |
700nm | 21.05% | 23.60% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 30.00%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Bluish white
Internal Reflections:
Deep red to purplish red
Chemistry of Tedhadleyite
Mindat Formula:
[Hg2]2+5Hg2+I2(Cl,Br)2O4
Crystallography of Tedhadleyite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Cell Parameters:
a = 7.0147(5) Å, b = 11.8508(7) Å, c = 12.5985(8) Å
α = 115.583(5)°, β = 82.575(2)°, γ = 100.619(2)°
α = 115.583(5)°, β = 82.575(2)°, γ = 100.619(2)°
Ratio:
a:b:c = 0.592 : 1 : 1.063
Unit Cell V:
927.00 ų (Calculated from Unit Cell)
Z:
2
Twinning:
Not observed
Comment:
Space Group: A1 -
Crystal Structure
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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) |
---|---|---|---|---|---|---|---|
0014591 | Tedhadleyite | Cooper M A, Hawthorne F C (2009) The crystal structure of tedhadleyite, Hg2+Hg1+10O4I2(Cl,Br)2. from the Clear Creek Claim, San Benito County, California Mineralogical Magazine 73 227-234 | 2009 | the Clear Creek Claim, San Benito County, California | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.885 Å | (100) |
3.143 Å | (90) |
2.675 Å | (90) |
3.005 Å | (70) |
5.281 Å | (50) |
2.981 Å | (50) |
2.508 Å | (40) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
47g : [Halogen-bearing surface weathering minerals] | |
47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Tedhadleyite
General Appearance of Type Material:
Spheroidal mass, 0.3 mm.
Place of Conservation of Type Material:
Systematic Reference Series of the National Mineral Collection at the Geological Survey of Canada, Ottawa, Ontario, NMC68088.
Associated Minerals at Type Locality:
Reference:
Roberts, A.C., Cooper, M.A., Hawthorne, F.C., Criddle, A.J., Stirling, J.A.R., Dunning, G.E. (2002) Tedhadleyite, Hg2+Hg1+10O4I2(Cl, Br)2, a new mineral species from the Clear Creek Claim, San Benito County, California. The Canadian Mineralogist: 40: 909-914.
Synonyms of Tedhadleyite
Other Language Names for Tedhadleyite
Related Minerals - Strunz-mindat Grouping
3.DD. | Mikecoxite | [CHg4]OCl2 |
3.DD.05 | Eglestonite | [Hg2]2+3OCl3(OH) |
3.DD.05 | Kadyrelite | [Hg2]2+3OBr3(OH) |
3.DD.10 | Poyarkovite | [Hg2]2+3Cl2O2 |
3.DD.15 | Hanawaltite | [Hg2]2+3Hg2+(Cl,OH)2O3 |
3.DD.20 | Terlinguaite | [Hg3]4+Hg2+Cl2O2 |
3.DD.25 | Pinchite | Hg2+5Cl2O4 |
3.DD.30 | Gianellaite | [(Hg2N)2](SO4)(H2O)x |
3.DD.30 | Mosesite | (Hg2N)(Cl,SO4,MoO4) · H2O |
3.DD.35 | Kleinite | (Hg2N)(Cl,SO4) · nH2O |
3.DD.45 | Vasilyevite | [Hg2]2+10I3Br2Cl[CO3]O6 |
3.DD.50 | Aurivilliusite | [Hg2]2+Hg2+2(I,Br,Cl)2O2 |
3.DD.55 | Terlinguacreekite | Hg2+3Cl2O2 |
3.DD.60 | Kelyanite | [Hg]2+6Sb3+BrCl2O6 |
3.DD.65 | Comancheite | Hg2+55N3-24(NH2,OH)4(Cl,Br)34 |
3.DD.70 | Gaildunningite | Hg2+3[NHg2+2]18(Cl,I,OH,Br,S)24 |
Fluorescence of Tedhadleyite
Not fluorescent under long and short wave UV
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 Tedhadleyite
mindat.org URL:
https://www.mindat.org/min-10654.html
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References for Tedhadleyite
Reference List:
Roberts, Andrew C., Cooper, Mark A., Hawthorne, Frank C., Criddle, Alan J., Stirling, John A.R., Dunning, Gail E. (2002) Tedhadleyite, Hg2+Hg1+10O4I2(Cl,Br)2, a new mineral species from the Clear Creek Claim, San Benito, California. The Canadian Mineralogist, 40 (3) 909-914 doi:10.2113/gscanmin.40.3.909
Mandarino, Joseph A. (2003) New minerals. The Canadian Mineralogist, 41 (5) 1309-1319 doi:10.2113/gscanmin.41.5.1309
Localities for Tedhadleyite
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
USA (TL) | |
| Roberts et al. (2002) |
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Clear Creek claim, Goat Mountain, San Benito County, California, USA