Schneiderhöhnite
A valid IMA mineral species
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About Schneiderhöhnite
Hans Schneiderhöhn
Formula:
Fe2+Fe3+3As3+5O13
Colour:
Usually black to blackish brown
Lustre:
Sub-Adamantine, Resinous, Sub-Metallic
Hardness:
3
Specific Gravity:
4.3
Crystal System:
Triclinic
Name:
Named after Hans Schneiderhöhn [June 2, 1887, Mainz, Germany - August 5, 1962, Sölden, Schwarzwald, Germany], professor of Mineralogy, University of Freiburg im Breisgau, Germany. Specialist in granite pegmatites.
This page provides mineralogical data about Schneiderhöhnite.
Name Encoding
ASCII-7:
Schneiderhohnite
Unique Identifiers
Mindat ID:
3571
Long-form identifier:
mindat:1:1:3571:8
IMA Classification of Schneiderhöhnite
Classification of Schneiderhöhnite
4.JA.35
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
A : Arsenites, antimonites, bismuthites; 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
A : Arsenites, antimonites, bismuthites; without additional anions, without H2O
45.1.12.1
45 : ACID AND NORMAL ANTIMONITES AND ARSENITES
1 : Miscellaneous
45 : ACID AND NORMAL ANTIMONITES AND ARSENITES
1 : Miscellaneous
23.19
23 : Arsenites
23 : Arsenites
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 |
|---|---|---|
| Snh | 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 Schneiderhöhnite
Sub-Adamantine, Resinous, Sub-Metallic
Transparency:
Translucent
Colour:
Usually black to blackish brown
Streak:
Brown
Hardness:
3 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{100} perfect; two others distinct.
{100} perfect; two others distinct.
Fracture:
Micaceous
Density:
4.3 g/cm3 (Measured) 4.33 g/cm3 (Calculated)
Optical Data of Schneiderhöhnite
Type:
Biaxial (+)
RI values:
nα = 2.11 nγ = 2.13
Birefringence:
<0.02
Max. Birefringence:
δ = 0.020
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Anisotropism:
Weak, greenish to brownish.
Bireflectance:
Not apparent.
Internal Reflections:
Reddish brown.
Pleochroism:
Strong
Comments:
Reddish-brown to bright yellow.
Comments:
Refractive indices are >2.11 and <2.13.
Absorption: X > Y < Z.
Reflectance lower than chalcocite.
Absorption: X > Y < Z.
Reflectance lower than chalcocite.
Chemistry of Schneiderhöhnite
Mindat Formula:
Fe2+Fe3+3As3+5O13
Element Weights:
Elements listed:
Crystallography of Schneiderhöhnite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 8.945(3) Å, b = 10.022(3) Å, c = 9.161(4) Å
α = 62.942(5)°, β = 116.072(6)°, γ = 81.722(6)°
α = 62.942(5)°, β = 116.072(6)°, γ = 81.722(6)°
Ratio:
a:b:c = 0.893 : 1 : 0.914
Unit Cell V:
593.13 ų (Calculated from Unit Cell)
Z:
2
Comment:
Cooper and Hawthorne, 2016. Refined to R1=1.4%.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.27 Å | (100) |
| 4.14 Å | (70) |
| 3.93 Å | (60) |
| 3.64 Å | (80) |
| 3.35 Å | (80) |
| 2.97 Å | (100) |
| 2.91 Å | (100) |
Comments:
35-462
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Schneiderhöhnite
General Appearance of Type Material:
Druses, with aggregates of crystals up to 7 mm.
Place of Conservation of Type Material:
No designated type material.
Geological Setting of Type Material:
Deep oxidation zone.
Associated Minerals at Type Locality:
Synonyms of Schneiderhöhnite
Other Language Names for Schneiderhöhnite
Common Associates
Associations Based on Photo Data:
| 30 photos of Schneiderhöhnite associated with Karibibite | Fe3+3(As3+O2)4(As3+2O5)(OH) |
| 7 photos of Schneiderhöhnite associated with Scorodite | Fe3+AsO4 · 2H2O |
| 3 photos of Schneiderhöhnite associated with Löllingite | FeAs2 |
| 2 photos of Schneiderhöhnite associated with Brunogeierite | Ge4+Fe2+2O4 |
| 1 photo of Schneiderhöhnite associated with Ojuelaite | ZnFe3+2(AsO4)2(OH)2 · 4H2O |
| 1 photo of Schneiderhöhnite associated with Anorthoroselite | Ca2Co(AsO4)2 · 2H2O |
| 1 photo of Schneiderhöhnite associated with Köttigite | Zn3(AsO4)2 · 8H2O |
| 1 photo of Schneiderhöhnite associated with Leiteite | Zn(As2O4) |
| 1 photo of Schneiderhöhnite associated with Chalcocite | Cu2S |
| 1 photo of Schneiderhöhnite associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 4.JA.05 | Leiteite | Zn(As2O4) |
| 4.JA.10 | Reinerite | Zn3(AsO3)2 |
| 4.JA.15 | Karibibite | Fe3+3(As3+O2)4(As3+2O5)(OH) |
| 4.JA.20 | Manganoschafarzikite | MnSb2O4 |
| 4.JA.20 | Trippkeite | Cu2+As3+2O4 |
| 4.JA.20 | Schafarzikite | Fe2+Sb3+2O4 |
| 4.JA.20 | Kusachiite | CuBi2O4 |
| 4.JA.20 | Igelströmite | Fe3+(Sb3+Pb2+)O4 |
| 4.JA.25 | Apuanite | Fe2+Fe3+4Sb3+4O12S |
| 4.JA.30 | Versiliaite | Fe2Fe4Sb6O16S |
| 4.JA.40 | Zimbabweite | (Na,K)2PbAs4(Ta,Nb,Ti)4O18 |
| 4.JA.45 | Ludlockite | PbFe3+4As3+10O22 |
| 4.JA.50 | Paulmooreite | Pb2[As2O5] |
| 4.JA.55 | Stibivanite | Sb2VO5 |
| 4.JA.60 | Chadwickite | (UO2)[HAsO3] |
Fluorescence of Schneiderhöhnite
Not fluorescent.
Other Information
Thermal Behaviour:
Heating at 800 deg causes a gain in weight.
Health Risks:
Contains arsenic.
Internet Links for Schneiderhöhnite
mindat.org URL:
https://www.mindat.org/min-3571.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 Schneiderhöhnite
Reference List:
Hawthorne, Frank C., Jambor, John L., Bladh, Kenneth W., Burke, Ernst A. J., Grice, Joel D., Phillips, Don, Roberts, Andrew C., Schedler, Robert A., E., James (1987) New mineral names. American Mineralogist, 72 (9-10) 1023-1028
Localities for Schneiderhöhnite
Showing 18 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.
Brazil | |
| Atencio et al. (2004) |
| Alain Hanson collection |
Chile | |
| collected and analysed by french ... |
| maurizio dini collection - quantitative ... | |
France | |
| Queneau (n.d.) |
| Dill (2008) |
Iran | |
| Nezafatis (2006) |
Japan | |
| Kikukawa & Yamada (2001) |
Kazakhstan | |
| Voloshin A.V. et al. (1989) |
Morocco | |
| Favreau et al. (2006) |
| Favreau et al. (2006) |
| Favreau et al. (2007) | |
| Favreau et al. (2006) |
| Favreau et al. (2006) |
Namibia | |
| Cooper et al. (2016) |
| Ottemann et al. (1973) +1 other reference |
Spain | |
| Rewitzer et al. (2016) +1 other reference |
USA | |
| Smith et al. (2000) |
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Urucum claim, Barra do Cuieté, Conselheiro Pena, Minas Gerais, Brazil