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Juabite
A valid IMA mineral species
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About Juabite
Formula:
CaCu10(TeO3)4(AsO4)4(OH)2 · 4H2O
Colour:
Emerald-green to pale green
Lustre:
Adamantine, Vitreous
Hardness:
3 - 4
Specific Gravity:
4.50 (Calculated)
Crystal System:
Triclinic
Name:
Named after Juab County, Utah, where the type locality is.
Type Locality:
This page provides mineralogical data about Juabite.
Unique Identifiers
Mindat ID:
7122
Long-form identifier:
mindat:1:1:7122:8
Similar Names
| Juanite | A valid IMA mineral species - grandfathered - questionable | Ca10Mg4Al2Si11O39 · 4H2O or near |
IMA Classification of Juabite
Approved
IMA Formula:
CaCu2+10(Te4+O3)4(As5+O4)4(OH)2·4H2O
Approval year:
1996
Type description reference:
Classification of Juabite
4.JN.30
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
N : Tellurites with additional anions, with H2O
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
N : Tellurites with additional anions, with H2O
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 |
|---|---|---|
| Jua | 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 Juabite
Adamantine, Vitreous
Transparency:
Transparent, Translucent
Comment:
Vitreous to adamantine on cleavages
Colour:
Emerald-green to pale green
Streak:
Pale green
Hardness:
3 - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{010}
{010}
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
4.50 g/cm3 (Calculated)
Optical Data of Juabite
Type:
Biaxial
Colour in reflected light:
brownish white
Internal Reflections:
turquoise-blue
Comments:
n = [1.71–1.73]
Chemistry of Juabite
Mindat Formula:
CaCu10(TeO3)4(AsO4)4(OH)2 · 4H2O
Element Weights:
Crystallography of Juabite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 8.9903(7) Å, b = 10.1197(8) Å, c = 8.9959(7) Å
α = 102.654(1)°, β = 92.432(1)°, γ = 70.432(1)°
α = 102.654(1)°, β = 92.432(1)°, γ = 70.432(1)°
Ratio:
a:b:c = 0.888 : 1 : 0.889
Unit Cell V:
752.01 ų (Calculated from Unit Cell)
Z:
1
Morphology:
masses of platy crystals
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) |
|---|---|---|---|---|---|---|---|
| 0018499 | Juabite | Kampf A R, Mills S J (2011) The role of hydrogen in tellurites: crystal structure refinements of juabite, poughite and rodalquilarite Journal of Geosciences 56 235-247 | 2011 | Gold Chain mine, Tintic district, Juab County, Utah, USA | 0 | 293 | |
| 0005685 | Juabite | Burns P C, Clark C M, Gault R A (2000) Juabite, CaCu10(TeO3)4(AsO4)4(OH)2(H2O)4: Crystal structure and revision of the chemical formula The Canadian Mineralogist 38 809-816 |  | 2000 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.097 Å | (100) |
| 9.28 Å | (70) |
| 4.65 Å | (70) |
| 3.018 Å | (60) |
| 2.658 Å | (50) |
| 2.468 Å | (50) |
| 1.740 Å | (50) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47e : [Vanadates, chromates, manganates] |
Type Occurrence of Juabite
Place of Conservation of Type Material:
The Natural History Museum, London, England, 1997,1; Canadian Geological Survey, Ottawa, Canada, 67959
Geological Setting of Type Material:
secondary mineral formed by the reaction of enargite and tellurium-enriched solutions
Associated Minerals at Type Locality:
Reference:
Other Language Names for Juabite
Common Associates
Associations Based on Photo Data:
| 3 photos of Juabite associated with Quartz | SiO2 |
| 1 photo of Juabite associated with Baryte | BaSO4 |
| 1 photo of Juabite associated with Mixite | BiCu6(AsO4)3(OH)6 · 3H2O |
| 1 photo of Juabite associated with Goldfieldite | (Cu4◻2)(Cu4Cu+2)Te4S12S |
| 1 photo of Juabite associated with Strashimirite | Cu8(AsO4)4(OH)4 · 5H2O |
Related Minerals - Strunz-mindat Grouping
| 4.JN. | Tombstoneite | (Ca0.5Pb0.5)Pb3Cu2+6Te6+2O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O |
| 4.JN. | Ozernovskite | Fe3+4(Te4+O4)(Te4+O3)4 · 7H2O |
| 4.JN. | Shenganfuite | PbTe4+3O5(OH)Cl3(H2O) |
| 4.JN.05 | Sonoraite | Fe3+(TeO3)(OH) · H2O |
| 4.JN.10 | Poughite | Fe3+2(TeO3)2(SO4)(H2O)2 · H2O |
| 4.JN.15 | Cesbronite | Cu2+3Te6+O4(OH)4 |
| 4.JN.20 | Eztlite | Pb2+2Fe3+3(Te4+ O3)3(SO4)O2Cl |
| 4.JN.35 | Eurekadumpite | (Cu,Zn)16(TeO3)2(AsO4)3Cl(OH)18 · 7H2O |
| 4.JN.40 | Tamboite | Fe3+3(OH)(H2O)2(SO4)(Te4+O3)3(Te4+O(OH)2)(H2O)3 |
| 4.JN.40 | Metatamboite | Fe3+3(OH)(H2O)2(SO4)(Te4+O3)3(Te4+O(OH)2)(H2O) |
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 Juabite
mindat.org URL:
https://www.mindat.org/min-7122.html
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References for Juabite
Reference List:
Roberts, Andrew C., Gault, Robert A., Jensen, Martin C., Criddle, Alan J., Moffatx, Elizabeth A. (1997) Juabite, Cu5(Te6+O4)2(As5+O4)2.3H2O. a new mineral species from the Centennial Eureka mine, Juab County, Utah. Mineralogical Magazine, 61 (404) 139-144 doi:10.1180/minmag.1997.061.404.14
Localities for Juabite
Showing 8 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.
USA | |
| MarekC pers. coll. 2017-2018 |
| Kampf et al. (2018) |
| In the collection of Brent Thorne. ... | |
| Collected by Dick Thomssen and XRD ... |
| John Dagenais collection | |
| Collected by John Dagenais. EDS and XRD ... | |
| Sejkora et al. (2025) | |
| Roberts et al. (1997) |
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North Star Mine, Mammoth, Tintic Mining District, East Tintic Mountains, Utah, USA