Cuzticite
A valid IMA mineral species
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About Cuzticite
Formula:
Fe3+2(TeO6) · 3H2O
Colour:
Deep yellow, also golden brown to brown
Lustre:
Sub-Vitreous, Greasy, Pearly
Hardness:
3
Specific Gravity:
3.9
Crystal System:
Hexagonal
Name:
Named in 1982 from the Nahuatl language for "something yellow" referring to the yellow to brown color of the original mineral.
This page provides mineralogical data about Cuzticite.
Unique Identifiers
Mindat ID:
1199
Long-form identifier:
mindat:1:1:1199:6
GUID
(UUID V4):
(UUID V4):
e05e5831-c58d-402a-80d6-bbd767c5c128
IMA Classification of Cuzticite
Approved
IMA Formula:
Fe3+2Te6+O6 · 3H2O
Classification of Cuzticite
4.FM.35
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
M : Hydroxides with H2O +- (OH); unclassified
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
M : Hydroxides with H2O +- (OH); unclassified
Dana 7th ed.:
33.2.3.1
33.2.3.1
33 : SELENATES AND TELLURATES
2 : (AB)m(XO6)·xH2O, where x can equal zero
33 : SELENATES AND TELLURATES
2 : (AB)m(XO6)·xH2O, where x can equal zero
28.4.16
28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
28 : Selenites, Selenates, Tellurites, and Tellurates
4 : Tellurates
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 |
---|---|---|
Cuz | 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 Cuzticite
Sub-Vitreous, Greasy, Pearly
Transparency:
Transparent, Translucent
Comment:
May be very bright or reflective
Colour:
Deep yellow, also golden brown to brown
Hardness:
3 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
3.9 g/cm3 (Measured) 4.01 g/cm3 (Calculated)
Optical Data of Cuzticite
Type:
Uniaxial (-)
RI values:
nω = 2.060 nε = 2.050
Birefringence:
0.01
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Very High
Optical Extinction:
Parallel
Pleochroism:
Non-pleochroic
Chemistry of Cuzticite
Mindat Formula:
Fe3+2(TeO6) · 3H2O
Elements listed:
Crystallography of Cuzticite
Crystal System:
Hexagonal
Cell Parameters:
a = 5.045 Å, c = 14.63 Å
Ratio:
a:c = 1 : 2.9
Unit Cell V:
322.48 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Scaly coatings
Comment:
Point Group: n.d.; Space Group: n.d.
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.87 Å | (40) |
3.26 Å | (100) |
2.52 Å | (70) |
2.24 Å | (30) |
1.99 Å | (20) |
1.75 Å | (20) |
1.56 Å | (30) |
1.46 Å | (30) |
Comments:
35-664
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 Cuzticite
General Appearance of Type Material:
Yellow to brownish yellow scaly coatings.
Place of Conservation of Type Material:
The Natural History Museum, London, England, 1984,467
Associated Minerals at Type Locality:
Reference:
Williams, S. A. (1982): Cuzticite and eztlite, two new tellurium minerals from Moctezuma, Mexico. Mineralogical Magazine, 46, 257-259.
Synonyms of Cuzticite
Other Language Names for Cuzticite
Common Associates
Associated Minerals Based on Photo Data:
4 photos of Cuzticite associated with Emmonsite | Fe3+2(TeO3)3 · 2H2O |
4 photos of Cuzticite associated with Eztlite | Pb2+2Fe3+3(Te4+ O3)3(SO4)O2Cl |
4 photos of Cuzticite associated with Zemannite | Mg0.5ZnFe3+(Te4+O3)3 · 4.5H2O |
4 photos of Cuzticite associated with Quartz | SiO2 |
2 photos of Cuzticite associated with Goldfieldite | (Cu4◻2)(Cu4Cu+2)Te4S12S |
Related Minerals - Strunz-mindat Grouping
4.FM. | Charleshatchettite | CaNb4O10(OH)2 · 8H2O |
4.FM. | Dinilawiite | [Pb4O2Al(OH)5]2(S2O3)2 · H2(S2O3)(H2O)5 |
4.FM. | Yttrotungstite-(Nd) | NdW2O7(OH) · H2O |
4.FM.15 | Franconite | Na(Nb2O5)(OH) · 3H2O |
4.FM.15 | Hochelagaite | (Ca,Na,Sr)(Nb,Ti,Si,Al)4O11 · 8H2O |
4.FM.15 | Ternovite | (Mg,Ca)Nb4O11 · nH2O |
4.FM.25 | Belyankinite | Ca1-2(Ti,Nb)5O12 · 9H2O (?) |
4.FM.25 | Gerasimovskite | (Mn,Ca)(Nb,Ti)5O12 · 9H2O |
4.FM.25 | Manganbelyankinite | (Mn,Ca)(Ti,Nb)5O12 · 9H2O |
4.FM.30 | Silhydrite | Si3O6 · H2O |
4.FM.50 | Qatranaite | CaZn2(OH)6(H2O)2 |
4.FM.55 | Hydroplumbite | 3PbO · H2O |
Fluorescence of Cuzticite
Not fluorescent
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 Cuzticite
mindat.org URL:
https://www.mindat.org/min-1199.html
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Please feel free to link to this page.
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References for Cuzticite
Localities for Cuzticite
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.
Mexico (TL) | |
| Williams (1982) +1 other reference |
Russia | |
| Pavel.M. Kartashov (n.d.) |
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Moctezuma Mine, Moctezuma, Moctezuma Municipality, Sonora, Mexico