Hanahanite
A valid IMA mineral species
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About Hanahanite
Formula:
[Zn8(OH)14(SO4)] · 3H2O
Colour:
light blue
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
3.28
Crystal System:
Hexagonal
Member of:
Name:
Hanahanite is named in honour of American geoscience educator and mineral collector John (Jack) Hanahan (1924-2001). Mr. Hanahan was on the faculty of Abbey College in North Carolina from 1952 to 1987, teaching geology, geography and Spanish and ultimately serving as chair of the Geosciences Division. He was highly regarded as a dedicated and effective educator. After his retirement, he continued as professor emeritus. Mr. Hanahan built a fine personal mineral collection with a particular specialty in North Carolina specimens, but he is best known as a strong proponent of the mineral collecting hobby. He served as a leader in numerous amateur mineralogical organizations, he generously supported museum mineral collections both as a specimen donor and in volunteer curatorial roles and he fostered collector-oriented magazines, including serving as an executive editor of Rocks & Minerals for many years. A more detailed compilation of Jack Hanahan’s contributions to the mineralogical community was provided by Cook (2002).
Chemically and structurally related to lahnsteinite, namuwite, and osakaite. As such, likely also related to haywoodite (also described from the Redmond mine).
As in the case of the co-described haywoodite, the structure is based on gordaite-like sheets. Other structural details:
* ZnO4 tetrahedra of the adjacent sheets are sharing their corners;
* the interlayer bears water, exclusively.
As in the case of the co-described haywoodite, the structure is based on gordaite-like sheets. Other structural details:
* ZnO4 tetrahedra of the adjacent sheets are sharing their corners;
* the interlayer bears water, exclusively.
Unique Identifiers
Mindat ID:
56042
Long-form identifier:
mindat:1:1:56042:9
Classification of Hanahanite
Gordaite-type sheet
Members of the namuwite group exhibit gordaite-type sheets. Hanahanite exhibits a modified version of the sheet topology that is stripped of sulfate groups on one side, halving the ratio of sulfur to zinc and polarizing the crystal structure.
IMA Classification of Hanahanite
Approved
IMA Formula:
[Zn2+8(OH)14(S6+O4)]·3H2O
Approval year:
2022
First published:
2023
Type description reference:
Kampf, Anthony R., Smith, Jason B., Hughes, John M., Ma, Chi, Emproto, Christopher (2023) New Minerals from the Redmond Mine, North Carolina, USA: IV. Haywoodite and Hanahanite, Two New Minerals Containing Gordaite-Like Sheets. The Canadian Journal of Mineralogy and Petrology, 61 (6) 1137-1149 doi:10.3749/2300027
4.E0.
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
E : Metal: Oxygen = < 1 :2
0 :
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
E : Metal: Oxygen = < 1 :2
0 :
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 for Standard |
|---|---|---|
| Hnh | 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 Hanahanite
Vitreous
Colour:
Light blue
Streak:
White
Hardness:
3 on Mohs scale
Tenacity:
Brittle
Cleavage:
Very Good
on {001}
on {001}
Comment:
curved fracture
Density:
3.28(2) g/cm3 (Measured)
Optical Data of Hanahanite
Type:
Uniaxial (-)
RI values:
nω = 1.636(3) nε = 1.620(3)
Max. Birefringence:
δ = 0.016
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Chemistry of Hanahanite
Mindat Formula:
[Zn8(OH)14(SO4)] · 3H2O
Element Weights:
Elements listed:
Chemical Analysis
Empirical formulas:
| Sample ID | Empirical Formula |
|---|---|
| 1 | (Zn6.69Cu1.27Co0.01)Σ7.97S1.00O21H20.04 |
Sample references:
Crystallography of Hanahanite
Crystal System:
Hexagonal
Class (H-M):
6 - Pyramidal
Space Group:
P63
Cell Parameters:
a = 8.312(2) Å, c = 15.295(2) Å
Ratio:
a:c = 1 : 1.84
Unit Cell V:
915.15 ų (Calculated from Unit Cell)
Z:
2
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) |
|---|---|---|---|---|---|---|---|
| M12020 | Hanahanite | Kampf, Anthony R., Smith, Jason B., Hughes, John M., Ma, Chi, Emproto, Christopher (2023) New Minerals from the Redmond Mine, North Carolina, USA: IV. Haywoodite and Hanahanite, Two New Minerals Containing Gordaite-Like Sheets. The Canadian Journal of Mineralogy and Petrology, 61 (6) 1137-1149 doi:10.3749/2300027 | 2023 | Redmond Mine, North Carolina, USA | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.64 Å | (100) |
| 3.633 Å | (16) |
| 3.374 Å | (30) |
| 2.716 Å | (27) |
| 2.561 Å | (38) |
| 2.216 Å | (21) |
| 1.858 Å | (32) |
| 1.566 Å | (37) |
Reference:
Kampf, Anthony R., Smith, Jason B., Hughes, John M., Ma, Chi, Emproto, Christopher (2023) New Minerals from the Redmond Mine, North Carolina, USA: IV. Haywoodite and Hanahanite, Two New Minerals Containing Gordaite-Like Sheets. The Canadian Journal of Mineralogy and Petrology, 61 (6) 1137-1149 doi:10.3749/2300027
Type Occurrence of Hanahanite
General Appearance of Type Material:
prisms, up to 0.3 mm in length
Place of Conservation of Type Material:
Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 76212, 76213, and 76214
Geological Setting of Type Material:
"highly unusual secondary assemblage that comprises a variety of rare Pb-Zn-Cu sulfates, thiosulfates, and carbonates"
Reference:
Kampf, Anthony R., Smith, Jason B., Hughes, John M., Ma, Chi, Emproto, Christopher (2023) New Minerals from the Redmond Mine, North Carolina, USA: IV. Haywoodite and Hanahanite, Two New Minerals Containing Gordaite-Like Sheets. The Canadian Journal of Mineralogy and Petrology, 61 (6) 1137-1149 doi:10.3749/2300027
Synonyms of Hanahanite
Other Language Names for Hanahanite
Dutch:Hanahaniet
German:Hanahanit
Relationship of Hanahanite to other Species
Member of:
Other Members of Namuwite Group:
| Bechererite | Zn7Cu(OH)13[(SiO(OH)3(SO4)] | Trig. 3 : P3 |
| Gordaite | NaZn4(SO4)(OH)6Cl · 6H2O | Trig. 3 : P3 |
| Guarinoite | Zn6(SO4)(OH)10 · 5H2O | Hex. |
| Haywoodite | [Pb(H2O)10][Zn12(OH)20(H2O)(SO4)3] | Tric. 1 : P1 |
| Hodgesmithite | (Cu,Zn)6Zn(SO4)2(OH)10 · 3H2O | Trig. 3 : P3 |
| Lahnsteinite | Zn4(SO4)(OH)6 · 3H2O | Tric. 1 : P1 |
| Namuwite | Zn4(SO4)(OH)6 · 4H2O | Trig. 3 : P3 |
| Osakaite | Zn4(SO4)(OH)6 · 5H2O | Tric. 1 : P1 |
| Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O | Mon. 2/m |
| Thérèsemagnanite | NaCo4(SO4)(OH)6Cl · 6H2O | Trig. 3 : P3 |
| Tzeferisite | CaZn8(SO4)2(OH)12Cl2(H2O)9 | Trig. 3m(32/m) : R3c |
Common Associates
Associations Based on Photo Data:
| 1 photo of Hanahanite associated with Bechererite | Zn7Cu(OH)13[(SiO(OH)3(SO4)] |
Related Minerals - Strunz-mindat Grouping
| 4.E0. | Liguowuite | WO3 |
| 4.E0. | Tianhuixinite | (MoO3)3 · H2O |
| 4.E0.05 | Tantite | Ta2O5 |
| 4.E0.10 | Molybdite | MoO3 |
| 4.E0.10 | 'Krasnogorite' | WO3 |
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 Hanahanite
mindat.org URL:
https://www.mindat.org/min-56042.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Hanahanite
Reference List:
Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2022) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 67. European Journal of Mineralogy, 34 (3) 359-364 doi:10.5194/ejm-34-359-2022
Kampf, Anthony R., Smith, Jason B., Hughes, John M., Ma, Chi, Emproto, Christopher (2023) New Minerals from the Redmond Mine, North Carolina, USA: IV. Haywoodite and Hanahanite, Two New Minerals Containing Gordaite-Like Sheets. The Canadian Journal of Mineralogy and Petrology, 61 (6) 1137-1149 doi:10.3749/2300027
Localities for Hanahanite
Showing 3 localities.
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.
Germany | |
| www.mindat.org (n.d.) |
Italy | |
| Georges FAVREAU collection & EDX ... |
USA (TL) | |
| Miyawaki et al. (2022) +1 other reference |
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Redmond Mine, Waterville Lake, Haywood County, North Carolina, USA