Zincospiroffite
A valid IMA mineral species
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About Zincospiroffite
Formula:
Zn2Te4+3O8
Colour:
Grey
Lustre:
Vitreous
Hardness:
2½
Specific Gravity:
5.57 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
Named as the zinc analogue of Spiroffite.
Unique Identifiers
Mindat ID:
25709
Long-form identifier:
mindat:1:1:25709:3
GUID
(UUID V4):
(UUID V4):
94791d0c-92fc-4a6c-89ae-5f1705b7db24
IMA Classification of Zincospiroffite
Approved
IMA Formula:
Zn2Te3O8
Approval year:
2002
First published:
2004
Classification of Zincospiroffite
4.JK.10
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
K : Tellurites without additional anions, without H2O
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
K : Tellurites without additional anions, without 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 |
---|---|---|
Zspf | 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 Zincospiroffite
Vitreous
Transparency:
Translucent
Colour:
Grey
Streak:
Dark green
Hardness:
2½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
5.57 g/cm3 (Calculated)
Optical Data of Zincospiroffite
Anisotropism:
Weak
Bireflectance:
Weak
Reflectivity:
Wavelength | R1 | R2 |
---|---|---|
400nm | 22.3% | 29.7% |
420nm | 12.7% | 16.1% |
440nm | 6.9% | 8.6% |
460nm | 6.7% | 7.3% |
470nm | 7.0% | 7.5% |
480nm | 7.4% | 7.7% |
500nm | 7.6% | 7.9% |
520nm | 7.6% | 8.1% |
540nm | 7.4% | 7.8% |
546nm | 7.1% | 7.3% |
560nm | 6.9% | 6.9% |
580nm | 6.4% | 6.4% |
589nm | 6.1% | 6.2% |
600nm | 5.9% | 6.0% |
620nm | 5.4% | 5.6% |
640nm | 4.8% | 5.3% |
650nm | 4.4% | 5.0% |
660nm | 4.1% | 4.6% |
680nm | 3.6% | 4.2% |
700nm | 3.1% | 3.7% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 29.7%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Gray
Internal Reflections:
None
Pleochroism:
Weak
Chemistry of Zincospiroffite
Mindat Formula:
Zn2Te4+3O8
Elements listed:
Crystallography of Zincospiroffite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 12.72(4) Å, b = 5.15(1) Å, c = 11.82(3) Å
β = 99.2(3)°
β = 99.2(3)°
Ratio:
a:b:c = 2.47 : 1 : 2.295
Unit Cell V:
764.34 ų (Calculated from Unit Cell)
Z:
4
Morphology:
micrometric aggregates to 0.35 mm
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
4.758 Å | (w) |
3.240 Å | (w) |
2.928 Å | (m) |
2.820 Å | (w) |
2.155 Å | (w) |
1.985 Å | (w) |
1.599 Å | (w) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
47e : [Vanadates, chromates, manganates] | |
47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Zincospiroffite
General Appearance of Type Material:
As micrometric films coating calaverite or in irregular aggregates replacing calaverite .
Place of Conservation of Type Material:
Geological Museum of China, Beijing, People’s Republic of China; M10442.
Geological Setting of Type Material:
Secondary co-oxidation product in gold-bearing ore veins.
Associated Minerals at Type Locality:
Reference:
Zhang P H, Zhu J C, Zhao Z H, Gu X P, Lin J F (2004) Zincospiroffite, a new tellurite mineral species from the Zhongshangou gold deposit, Hebei Province, People's Republic of China. The Canadian Mineralogist 42, 763-768
Synonyms of Zincospiroffite
Other Language Names for Zincospiroffite
Relationship of Zincospiroffite to other Species
Common Associates
Associated Minerals Based on Photo Data:
12 photos of Zincospiroffite associated with Quartz | SiO2 |
4 photos of Zincospiroffite associated with Eurekadumpite | (Cu,Zn)16(TeO3)2(AsO4)3Cl(OH)18 · 7H2O |
3 photos of Zincospiroffite associated with Zemannite | Mg0.5ZnFe3+(Te4+O3)3 · 4.5H2O |
3 photos of Zincospiroffite associated with Goldfieldite | (Cu4◻2)(Cu4Cu+2)Te4S12S |
3 photos of Zincospiroffite associated with Baryte | BaSO4 |
1 photo of Zincospiroffite associated with Goethite | α-Fe3+O(OH) |
1 photo of Zincospiroffite associated with Dugganite | Pb3Zn3(AsO4)2(TeO6) |
1 photo of Zincospiroffite associated with Hessite | Ag2Te |
Related Minerals - Strunz-mindat Grouping
4.JK. | Matthiasweilite | PbTe4+O3 |
4.JK.05 | Winstanleyite | TiTe4+3O8 |
4.JK.05 | Walfordite | (Fe3+,Te6+)Te4+3O8 |
4.JK.10 | Spiroffite | Mn2+2Te4+3O8 |
4.JK.15 | Balyakinite | Cu(TeO3) |
4.JK.20 | Rajite | Cu(Te4+2O5) |
4.JK.25 | Carlfriesite | CaTe4+2Te6+O8 |
4.JK.30 | Denningite | (Mn2+,Ca,Zn)Te4+2O5 |
4.JK.35 | Chekhovichite | Bi2Te4+4O11 |
4.JK.40 | Smirnite | Bi2Te4+O5 |
4.JK.45 | Choloalite | (Cu,Sb)3(Pb,Ca)3(TeO3)6Cl |
4.JK.50 | Fairbankite | Pb2+12(Te4+O3)11(SO4) |
4.JK.55 | Plumbotellurite | Pb(TeO3) |
4.JK.60 | Magnolite | [Hg2]2+[Te4+O3] |
4.JK.65 | Moctezumite | Pb(UO2)(TeO3)2 |
4.JK.70 | Schmitterite | (UO2)(TeO3) |
4.JK.75 | Cliffordite | (UO2)Te4+3O7 |
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 Zincospiroffite
mindat.org URL:
https://www.mindat.org/min-25709.html
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References for Zincospiroffite
Reference List:
Localities for Zincospiroffite
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.
China | |
| Peihua Zhang et al. (2002) +1 other reference |
| Zhang et al. (2004) |
Mexico | |
| In the collection of Brent Thorne. ... |
USA | |
| Joy Desor |
| Collected by and in the collection of ... +1 other reference |
Collected by and in the collection of ... | |
| EDS analyzed. |
| In the collection of Alex Earl |
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Hilltop Mine, Organ Mining District, Organ Mountains, Doña Ana County, New Mexico, USA