Zinconigerite-6N6S
A valid IMA mineral species
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Formula:
Zn3Sn2Al16O30(OH)2
formerly given as (Zn,Mg,Al)3(Al,Sn,Fe)8O15(OH)
Specific Gravity:
4.438 (Calculated)
Crystal System:
Trigonal
Member of:
Name:
Proposed name for the Zn-dominant mineral of the nigerite group and the 6N6S polysome. The root name is for Nigeria.
Zn-dominant member of the Nigerite Group (Armbruster, 2002).
Type locality is the Xianghualing skarn.
Crystal structure details:
* 3 × (O-T1-O-T2-O-T2-O-T1) polyhedral stacking sequence suggesting...
*... N-S-S-N-N-S-S-N-N-S-S-N polysomatic connectivity (N = nolanite module, S = spinel module).
Type locality is the Xianghualing skarn.
Crystal structure details:
* 3 × (O-T1-O-T2-O-T2-O-T1) polyhedral stacking sequence suggesting...
*... N-S-S-N-N-S-S-N-N-S-S-N polysomatic connectivity (N = nolanite module, S = spinel module).
Unique Identifiers
Mindat ID:
11454
Long-form identifier:
mindat:1:1:11454:9
GUID
(UUID V4):
(UUID V4):
6df0708a-95ae-4b44-9dcb-432333146951
IMA Classification of Zinconigerite-6N6S
Approved
Classification of Zinconigerite-6N6S
4.FC.20
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
C : Hydroxides with OH, without H2O; corner-sharing octahedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
C : Hydroxides with OH, without H2O; corner-sharing octahedra
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 |
---|---|---|
Zng-6N6S | 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 Zinconigerite-6N6S
Density:
4.438 g/cm3 (Calculated)
Optical Data of Zinconigerite-6N6S
Type:
Uniaxial (+)
RI values:
nω = 1.850(1) nε = 1.870(2)
Max Birefringence:
δ = 0.020
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
Chemistry of Zinconigerite-6N6S
Mindat Formula:
Zn3Sn2Al16O30(OH)2
formerly given as (Zn,Mg,Al)3(Al,Sn,Fe)8O15(OH)
formerly given as (Zn,Mg,Al)3(Al,Sn,Fe)8O15(OH)
Crystallography of Zinconigerite-6N6S
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Cell Parameters:
a = 5.7241(2) Å, c = 55.539(2) Å
Ratio:
a:c = 1 : 9.703
Unit Cell V:
1,575.95 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.436 Å | (100) |
1.931 Å | (100) |
1.650 Å | (100) |
1.646 Å | (100) |
1.553 Å | (62) |
1.430 Å | (61) |
0.935 Å | (41) |
0.911 Å | (40) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 4a: Earth’s earliest continental crust | >4.4-3.0 |
19 : Granitic intrusive rocks | |
Stage 4b: Highly evolved igneous rocks | >3.0 |
34 : Complex granite pegmatites |
Type Occurrence of Zinconigerite-6N6S
General Appearance of Type Material:
Aggregates of sub-to-euhedral crystals, up to 100 μm, within fluorite aggregates.
Place of Conservation of Type Material:
Mineralogical collections of the Geological Museum of China, no. 16 Yangrou Hutong, Xisi, Beijing 100031, People’s Republic of China, catalogue number M13811.
Empirical Formula of Type Material:
(Zn1.689Mn0.576Mg0.328Fe3+0.407)?3(Sn1.882Zn0.047Ti0.071)?2(Al14.675Fe3+1.088Na0.13Ca0.086Si0.017)?15.996O30(OH)2
Geological Setting of Type Material:
Skarn.
Associated Minerals at Type Locality:
Synonyms of Zinconigerite-6N6S
Relationship of Zinconigerite-6N6S to other Species
Member of:
Other Members of this group:
Zinconigerite-2N1S | (Zn,Al,Mg)2(Al,Sn)6O11(OH) | Trig. 3m (3 2/m) : P3m1 |
Related Minerals - Strunz-mindat Grouping
4.FC.05 | Bernalite | Fe(OH)3 · nH2O (n = 0.0 to 0.25) |
4.FC.05 | Dzhalindite | In(OH)3 |
4.FC.05 | Söhngeite | Ga(OH)3 |
4.FC.10 | Burtite | Ca[Sn(OH)6] |
4.FC.10 | Mushistonite | (Cu,Zn,Fe2+)[Sn(OH)6] |
4.FC.10 | Natanite | Fe2+[Sn(OH)6] |
4.FC.10 | Schoenfliesite | Mg[Sn(OH)6] |
4.FC.10 | Vismirnovite | Zn[Sn(OH)6] |
4.FC.10 | Wickmanite | Mn2+[Sn(OH)6] |
4.FC.15 | Jeanbandyite | Fe3+xFe2+1-xSn(OH)6-xOx |
4.FC.15 | Mopungite | Na[Sb5+(OH)6] |
4.FC.15 | Stottite | Fe2+[Ge4+(OH)6] |
4.FC.15 | Tetrawickmanite | Mn2+[Sn4+(OH)6] |
4.FC.20 | Ferronigerite-2N1S | (Al,Fe,Zn)2(Al,Sn)6O11(OH) |
4.FC.20 | Magnesionigerite-6N6S | (Mg,Al,Zn)3(Al,Sn,Fe)8O15(OH) |
4.FC.20 | Magnesionigerite-2N1S | (Mg,Al,Zn)2(Al,Sn)6O11(OH) |
4.FC.20 | Ferronigerite-6N6S | (Al,Fe,Zn)3(Al,Sn,Fe)8O15(OH) |
4.FC.20 | Zinconigerite-2N1S | (Zn,Al,Mg)2(Al,Sn)6O11(OH) |
4.FC.25 | Magnesiotaaffeite-6N’3S | Mg2BeAl6O12 |
4.FC.25 | Magnesiotaaffeite-2N’2S | Mg3Al8BeO16 |
4.FC.25 | Ferrotaaffeite-2N’2S | Be(Fe,Mg,Zn)3Al8O16 |
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 Zinconigerite-6N6S
mindat.org URL:
https://www.mindat.org/min-11454.html
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References for Zinconigerite-6N6S
Localities for Zinconigerite-6N6S
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.
Brazil | |
| Beurlen et al. (2018) |
China (TL) | |
| Miyawaki et al. (2020) +1 other reference |
Finland | |
| Burke et al. (1977) +1 other reference |
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