Stützite
A valid IMA mineral species - grandfathered
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About Stützite
Formula:
Ag5-xTe3, x = 0.24-0.36
Idealised Ag7Te4
Colour:
Dark lead-grey, bronze-brown to iridescent (tarnished)
Lustre:
Metallic
Hardness:
3½
Crystal System:
Hexagonal
Name:
In honour of Andreas Xavier Stütz (1747–1806), mineralogist and past Director of the Mineral Cabinet (later Natural History Museum) of Vienna, Austria.
Type Locality:
Unique Identifiers
Mindat ID:
3813
Long-form identifier:
mindat:1:1:3813:9
GUID
(UUID V4):
(UUID V4):
ed90b8ad-9a68-4c68-b023-5fe394c966ef
IMA Classification of Stützite
Approved, 'Grandfathered' (first described prior to 1959)
IMA status notes:
Redefined by the IMA
IMA Formula:
Ag5-xTe3 (x = 0.24-0.36)
Classification of Stützite
2.BA.65
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
A : With Cu, Ag, Au
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
A : With Cu, Ag, Au
2.16.13.1
2 : SULFIDES
16 : Miscellaneous
2 : SULFIDES
16 : Miscellaneous
3.2.7
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
2 : Sulphides etc. of Ag
3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
2 : Sulphides etc. of Ag
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Stz | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Stz | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Stützite
Metallic
Transparency:
Opaque
Colour:
Dark lead-grey, bronze-brown to iridescent (tarnished)
Streak:
Grey-black
Hardness:
3½ on Mohs scale
Cleavage:
None Observed
Optical Data of Stützite
Anisotropism:
Moderate, in gray reddish brown-blue.
Reflectivity:
Wavelength | R1 | R2 |
---|---|---|
400nm | 41.2% | 42.9% |
420nm | 41.2% | 42.5% |
440nm | 41.2% | 42.0% |
460nm | 41.2% | 41.6% |
480nm | 41.2% | 41.3% |
500nm | 41.1% | 41.1% |
520nm | 41.0% | 40.8% |
540nm | 40.8% | 40.4% |
560nm | 40.7% | 40.0% |
580nm | 40.6% | 39.5% |
600nm | 40.6% | 39.0% |
620nm | 40.6% | 38.7% |
640nm | 40.7% | 38.3% |
660nm | 40.8% | 37.9% |
680nm | 40.9% | 37.4% |
700nm | 41.1% | 37.0% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 42.9%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Pale gray.
Chemistry of Stützite
Mindat Formula:
Ag5-xTe3, x = 0.24-0.36
Idealised Ag7Te4
Idealised Ag7Te4
Elements listed:
Crystallography of Stützite
Crystal System:
Hexagonal
Class (H-M):
6 - Trigonal Dipyramidal
Space Group:
P6
Cell Parameters:
a = 13.454(2) Å, c = 8.459(1) Å
Ratio:
a:c = 1 : 0.629
Unit Cell V:
1326 ų
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.16 Å | (100 broad) |
2.55 Å | (80 broad) |
3.03 Å | (70) |
2.62 Å | (70) |
3.56 Å | (60) |
3.52 Å | (60) |
2.11 Å | (60) |
Comments:
May Day mine, Colorado, USA.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) |
Type Occurrence of Stützite
Place of Conservation of Type Material:
No designated type material.
Synonyms of Stützite
Other Language Names for Stützite
Common Associates
Associated Minerals Based on Photo Data:
3 photos of Stützite associated with Tlalocite | Cu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2O |
3 photos of Stützite associated with Tlapallite | (Ca,Pb)3CaCu6[Te4+3Te6+O12]2(Te4+O3)2(SO4)2 · 3H2O |
2 photos of Stützite associated with Altaite | PbTe |
2 photos of Stützite associated with Azurite | Cu3(CO3)2(OH)2 |
1 photo of Stützite associated with Tellurium | Te |
1 photo of Stützite associated with Galena | PbS |
1 photo of Stützite associated with Pyrite | FeS2 |
1 photo of Stützite associated with Chalcopyrite | CuFeS2 |
1 photo of Stützite associated with Hessite | Ag2Te |
1 photo of Stützite associated with Rucklidgeite | PbBi2Te4 |
Related Minerals - Strunz-mindat Grouping
2.BA. | Orileyite | (Fe,Cu)2As |
2.BA. | Alburnite | Ag8GeTe2S4 |
2.BA. | Dzierżanowskite | CaCu2S2 |
2.BA. | Makotoite | Ag12(Cu3Au)S8 |
2.BA. | Xuwenyuanite | Ag9Fe3+Te2S4 |
2.BA.05 | Chalcocite | Cu2S |
2.BA.05 | Djurleite | Cu31S16 |
2.BA.05 | Geerite | Cu8S5 |
2.BA.05 | Roxbyite | Cu9S5 |
2.BA.10 | Anilite | Cu7S4 |
2.BA.10 | Digenite | Cu9S5 |
2.BA.15 | Bornite | Cu5FeS4 |
2.BA.20 | Bellidoite | Cu2Se |
2.BA.20 | Berzelianite | Cu2-xSe (x ≈ 0.12) |
2.BA.25 | Athabascaite | Cu5Se4 |
2.BA.25 | Umangite | Cu3Se2 |
2.BA.30 | Rickardite | Cu7Te5 |
2.BA.30 | Weissite | Cu2-xTe |
2.BA.35 | Acanthite | Ag2S |
2.BA.35 | Spryite | Ag8(As3+0.5As5+0.5)S6 |
2.BA.40 | Mckinstryite | Ag5-xCu3+xS4 |
2.BA.40 | Stromeyerite | AgCuS |
2.BA.40d | UM2003-13-S:AgAuCu | Ag6AuCu2S5 |
2.BA.42 | Honeaite | Au3TlTe2 |
2.BA.45 | Jalpaite | Ag3CuS2 |
2.BA.45 | Kurilite | Ag8Te3Se |
2.BA.45 | Selenojalpaite | Ag3CuSe2 |
2.BA.47 | Spiridonovite | (Cu1-xAgx)2Te |
2.BA.50 | Eucairite | AgCuSe |
2.BA.50 | Wuyanzhiite | Cu2S |
2.BA.52 | Argentite | Ag2S |
2.BA.55 | Aguilarite | Ag4SeS |
2.BA.55 | Naumannite | Ag2Se |
2.BA.60 | Cervelleite | Ag4TeS |
2.BA.60 | Hessite | Ag2Te |
2.BA.60 | Chenguodaite | Ag9Fe3+Te2S4 |
2.BA.65 | Henryite | (Cu,Ag)3+xTe2 , with x ~ 0.40 |
2.BA.70 | Argyrodite | Ag8GeS6 |
2.BA.70 | Canfieldite | Ag8SnS6 |
2.BA.70 | Putzite | (Cu4.7Ag3.3)GeS6 |
2.BA.75 | Fischesserite | Ag3AuSe2 |
2.BA.75 | Penzhinite | (Ag,Cu)4Au(S,Se)4 |
2.BA.75 | Petrovskaite | AuAgS |
2.BA.75 | Petzite | Ag3AuTe2 |
2.BA.75 | Uytenbogaardtite | Ag3AuS2 |
2.BA.80 | Bezsmertnovite | (Au,Ag)4Cu(Te,Pb) |
2.BA.80 | Bilibinskite | PbCu2Au3Te2 |
2.BA.80 | Bogdanovite | (Au,Te,Pb)3(Cu,Fe) |
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 Stützite
mindat.org URL:
https://www.mindat.org/min-3813.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Stützite
Reference List:
Schrauf, A. (1878) XVII. Ueber die Tellurerze Siebenbürgens. Zeitschrift für Kristallographie - Crystalline Materials, 2 (1) 209-252 doi:10.1524/zkri.1878.2.1.209
Thompson, R. M., Peacock, M. A., Rowland, J. F., Berry, L. G. (1951) Empressite and "stuetzite". American Mineralogist, 36 (5-6) 458-470
Honea, Russell M. (1964) Empressite and stuetzite redefined. American Mineralogist, 49 (3-4) 325-338
Cabri, L . J. (1965) Discussion of "Empressite and stuetzite redefined" by R. M. Honea. American Mineralogist, 50 (5-6) 795-801
Cabri, Louis J. (1965) Phase relations in the Au-Ag-Te systems and their mineralogical significance. Economic Geology, 60 (8) 1569-1606 doi:10.2113/gsecongeo.60.8.1569
Localities for Stützite
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.
Argentina | |
| DE BRODTKORB +1 other reference |
| Paar et al. (2005, January) |
Brotkorb (2002) +1 other reference | |
DE BRODTKORB | |
| Ana Cecilia Mugas-Lobos et al. (2011) +1 other reference |
| Esquivel et al. (2016) +1 other reference |
Armenia | |
| Kovalenker et al. (2006) |
Atlantic Ocean | |
| Firstova et al. (2019) |
Australia | |
| Kalleske (2010) |
| Hassan et al. (2016) +1 other reference |
| Hassan (2017) +1 other reference |
| Canadian Mineralogist (2003) |
Simpson (1948) | |
| Hassan et al. (2017) |
Austria | |
| Seemann (1993) +1 other reference |
Bulgaria | |
| K. Bogdanov et al. (2005) +1 other reference |
Canada | |
| Peatfield (n.d.) |
| Anthony et al. (1990) +1 other reference |
| Duff (2016) |
| Kelvin et al. Canadian Mineralogist 49 |
| Ames et al. (TGI) |
| R. C. Smith |
| Ames et al. (2003) |
| Can Mineral 1984 22: 13-21 |
| Canadian Mineralogist (1973) +1 other reference |
| Robert C. Smith |
| Mcdonald et al. (2015) |
Selway (1993) | |
| Robert C. Smith II Ph.D. P.G. |
China | |
| Cui et al. (1996) +1 other reference |
| Yanhe Cui et al. (1994) |
| Gao et al. (2015) +2 other references |
| Jun Lü et al. (2009) +7 other references |
| Vikent'ev et al. (2015, June) |
| Chang et al. (2022) |
| Wei Jian et al. (2014) |
| preprint |
| Fushan Wang (1991) |
| American Mineralogist 89 +1 other reference |
| Youxun Liu et al. (2003) |
| Yongwei Li et al. (2010) |
| Handong Qian et al. (2000) |
| Zhili Yang et al. (2007) |
| Zhimin Cao (1991) |
| Baohua Li et al. (1999) |
| Benhai Li et al. (1991) |
Cuba | |
| López K Jesús M. et al. (2006) |
Czech Republic | |
| Scharmová (1998) |
Ethiopia | |
| Billay et al. (1997) |
Fiji | |
| 16th Australian Geological Convention +1 other reference |
| Pals et al. (2003) |
France | |
| Delfour (2007) |
Ghana | |
| Mineralogical Magazine 1990 54 : 617-627 +1 other reference |
Greece | |
| Voudouris et al. (2018) |
| Voudouris et al. (2013) +1 other reference |
Voudouris (2006) | |
Voudouris et al. (2007) +1 other reference | |
| Singer et al. (2008) |
Voudouris +2 other references | |
Voudouris +3 other references | |
| Bonev et al. (2005) +2 other references |
Indonesia | |
| Yuningsih (2010) +1 other reference |
Italy | |
| Ruggieri et al. (1) |
Japan | |
| Matsukuma (1955) |
| Komuro et al. (2017) +1 other reference |
田中崇裕・濱根大輔: ... +1 other reference | |
| Takasu (1965) +1 other reference |
Mauritania | |
| Kolb et al. (2006) +2 other references |
Mexico | |
| Anisimov et al. (2001) |
| |
Peru | |
| Bendezu et al. (2009) |
Philippines | |
| Fermor 2011: Ore Deposits in an ... |
Poland | |
| Kozłowski et al. (2022) |
| Nejbert K. 2008: Mineralogy of ... |
| Singer et al. (2008) |
Romania | |
| Cook et al. (2002) +1 other reference |
| Afifi et al. (1988) +4 other references |
| Simon et al. (1995) |
| Andrei Ionuț Apopei et al. (2016) |
Săbău et al. (2016) | |
Cook et al. (2005) +1 other reference | |
Russia | |
| Maslennikov et al. (2005) +1 other reference |
| Vikentyev et al. (2015) +1 other reference |
Tseluyko et al. (2019) | |
| Kasatkin et al. (2022) |
| Plotinskaya et al. (2018) |
| Safina et al. (2015) |
| Plotinskaya et al. (2014) |
| Vikentyev I.V. e.a. (2004) +1 other reference |
Maslennikov et al. (2013) | |
| Nagornaya et al. (2012) |
| www.igem.ru (2001) +1 other reference |
| Marian et al. (2022) |
| Kalinin (2021) |
Kalinin (2021) | |
Чернявский et al. (2013) | |
| Kalinin et al. (2020) |
| Ivashchenko et al. (2011, September) |
| Ivashchenko et al. (2011, September) |
| Kuleshevich et al. (2012) |
| V. I. Ivashchenko et al. (2007) |
| Leontev et al. (2017) |
| L.A. Kondrat’eva +2 other references |
| Econ Geol (1997) |
| Stepanov et al. (2023) |
| Mikhailov et al. (2021) |
Maslennikov et al. (2013) | |
| Stepanov et al. (2023) |
Slovakia | |
| Ďuďa (1993) +1 other reference |
| Koděra |
South Africa | |
| Hutchinson et al. (2005) |
South Korea | |
| Econ Geol (1990) |
| Choi et al. (2005) |
| Choi et al. (2005) |
Spain | |
| Cepedal et al. (2004) |
Sweden | |
| Oen et al. (1984) +2 other references |
| |
Tajikistan | |
| Yatimov et al. (2022) |
USA | |
| Anthony et al. (1995) |
Harris et al. (1984) +3 other references | |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
Anthony et al. (1990) | |
Eckel et al. (1997) | |
| Eckel et al. (1997) |
| Anthony et al. (1990) |
| Sorrell (n.d.) |
Anthony et al. (1990) | |
| POHL et al. (1990) |
Anthony et al. (1990) | |
| Anthony et al. (1990) |
| Econ Geol (1994) |
| Mineralogical Magazine 1996 60 : 871-876 |
| Robert C. Smith |
| R.C. Smith |
| Lasmanis (1995) |
| Bart Cannon microprobe analysis |
Uzbekistan | |
| Rustam Koneev et al. (2005) |
| Kovalenker (2003) |
Anthony et al. (1990) +3 other references | |
Zimbabwe | |
| Afifi et al. (1988) +1 other reference |
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Kawazu mine, Rendaiji, Shimoda City, Shizuoka Prefecture, Japan