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Schneiderhöhnite

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Tsumeb, Otjikoto (Oshikoto) Region, Namibia
© Rob Lavinsky

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Formula:
Fe
2+
 
Fe
3+
3
[As
 
5
O
 
13
]
System:TriclinicColour:Usually black to ...
Hardness:3
Name:
Named after Hans Schneiderhöhn [June 2, 1887 Mainz - 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.

Classification of Schneiderhöhnite

IMA status:Approved 1973
Strunz 8th edition ID:4/J.06-20
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:45.1.12.1

45 : ACID AND NORMAL ANTIMONITES AND ARSENITES
1 : Miscellaneous
Hey's CIM Ref.:23.19

23 : Arsenites
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Type Occurrence of Schneiderhöhnite

Type Locality:Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
Year of Discovery:1973

Physical Properties of Schneiderhöhnite

Lustre:Sub-Adamantine, Resinous, Sub-Metallic
Diaphaneity (Transparency):Translucent
Colour:Usually black to blackish brown
Streak:Brown
Hardness (Mohs):3
Tenacity:Brittle
Cleavage:Perfect
{100}
Fracture:Micaceous
Density (measured):4.3 g/cm3
Density (calculated):4.33 g/cm3

Crystallography of Schneiderhöhnite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Space Group Setting:P1
Cell Parameters:a = 8.96Å, b = 10.07Å, c = 9.19Å
α = 63.06°, β = 116.16°, γ = 81.71°
Ratio:a:b:c = 0.89 : 1 : 0.913
Unit Cell Volume:V 599.07 ų (Calculated from Unit Cell)
Z:2
Comment:acute habit
X-Ray Powder Diffraction:
d-spacingIntensity
7.27 (100)
4.14 (70)
3.93 (60)
3.64 (80)
3.35 (80)
2.97 (100)
2.91 (100)
Comments:35-462

Optical Data of Schneiderhöhnite

Type:Biaxial (+)
RI values: nα = nγ =
Birefringence:<0.02
Maximum Birefringence:δ = 0.000

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Pleochroism:Strong
Comments:Yellow to red brown

Chemical Properties of Schneiderhöhnite

Formula:
Fe
2+
 
Fe
3+
3
[As
 
5
O
 
13
]
Essential elements:As, Fe, O
All elements listed in formula:As, Fe, O

Relationship of Schneiderhöhnite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JA.05Leiteite
Zn(As
 
2
O
 
4
)
4.JA.10Reinerite
Zn
 
3
(AsO
 
3
)
 
2
4.JA.15Karibibite
Fe
 
2
As
 
4
O
 
9
4.JA.20Kusachiite
CuBi
 
2
O
 
4
4.JA.20Schafarzikite
Fe
2+
 
Sb
3+
2
O
 
4
4.JA.20Trippkeite
Cu[As
 
2
O
 
4
]
4.JA.25Apuanite
Fe
2+
 
Fe
3+
4
Sb
3+
4
O
 
12
S
4.JA.30Versiliaite
Fe
 
2
Fe
 
4
Sb
 
6
O
 
16
S
4.JA.40Zimbabweite
(Na,K)
 
2
PbAs
 
4
(Ta,Nb,Ti)
 
4
O
 
18
4.JA.45Ludlockite
PbFe
3+
4
As
3+
10
O
 
22
4.JA.50Paulmooreite
Pb
 
2
[As
 
2
O
 
5
]
4.JA.55Stibivanite
Sb
 
2
VO
 
5
4.JA.60Chadwickite
(UO
 
2
)[HAsO
 
3
]
Related Minerals - Hey's Index Grouping:

- +
23.2Nanlingite
NaMg
 
4
(AsO
 
3
)
 
2
F
 
4
23.3Leiteite
Zn(As
 
2
O
 
4
)
23.5Kuznetsovite
(Hg
+
2
)Hg
2+
 
(AsO
 
4
)Cl
23.6Paulmooreite
Pb
 
2
[As
 
2
O
 
5
]
23.7Ecdemite
Pb
 
6
Cl
 
4
(As
 
2
O
 
7
)
23.8Heliophyllite
Pb
 
6
Cl
 
4
(As
 
2
O
 
7
)
23.9Finnemanite
Pb
 
5
(AsO
 
3
)
 
3
Cl
23.10Gebhardite
Pb
 
8
(As
 
2
O
 
5
)
 
2
OCl
 
6
23.11Zimbabweite
(Na,K)
 
2
PbAs
 
4
(Ta,Nb,Ti)
 
4
O
 
18
23.13Rouseite
Pb
 
2
Mn
2+
 
[AsO
 
3
]
 
2
 · 2H
 
2
O
23.14Freedite
Cu
+
 
Pb
 
8
(AsO
 
3
)
 
2
O
 
3
Cl
 
5
23.15Manganarsite
Mn
 
3
(As
 
2
O
 
4
)(OH)
 
4
23.17Armangite
Mn
2+
26
(AsO
 
3
)
 
14
(HAsO
 
3
)
 
4
(CO
 
3
)
23.18Karibibite
Fe
 
2
As
 
4
O
 
9
23.20Lazarenkoite
(Ca,Fe)FeAs
 
3
O
 
7
 · 3H
 
2
O
23.21Stenhuggarite
CaFeSb(AsO
 
3
)
 
2
O
23.22Tomichite
(V,Fe)
 
4
Ti
 
3
AsO
 
13
(OH)

Other Names for Schneiderhöhnite

Synonyms:
IMA1973-046
Other Languages:
German:Schneiderhöhnit
Russian:Шнайдерхенит
Spanish:Schneiderhohnita

Other Information

Fluorescence in UV light:Not fluorescent
Health Warning:Contains arsenic.

References for Schneiderhöhnite

Reference List:

- +
American Mineralogist (1974): 59: 1139.

Canadian Mineralogist (1985): 23: 675-679.

American Mineralogist (1987): 72: 1028.

Internet Links for Schneiderhöhnite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Schneiderhöhnite details from Handbook of Mineralogy (PDF)
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    • Localities for Schneiderhöhnite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Brazil
     
    • Minas Gerais
      • Doce valley
        • Galiléia
    		No reference listed
    Chile
     
    • Atacama Region
      • Copiapó Province
        • Tierra Amarilla
          • Pampa Larga district
    		maurizio dini collection - quantitative analysis
    Iran
     
    • Lorestan Province
      • Ashour Abad
    		Nezafatis, N. (2006): Au-Sn-W-Cu Mineralization in the Astaneh-Sarband Area, West Central Iran. PhD thesis, University of Tübingen (Germany), 116 pp.
    Japan
     
    • Kyushu Region
      • Oita prefecture
        • Saeki city
    		Kikukawa & Yamada (2001) Quartz, 14, 2-6.
    Kazakhstan
     
    • Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast')
    		Voloshin A.V., Pakhomovsky Ya.A., Bakhchisaraitsev A.Yu. (1989) On karibibite and schneiderhohnite from pegmatites of Eastern Kazakhstan, - Novye Dannye o Mineralakh, Moscow, Nauka, 36, pp.129-135 (in Rus.)
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azer District (Bou Azzer District)
            • Khder
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Méchoui
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Oumlil
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Tamdrost
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Namibia
     
    • Otjikoto (Oshikoto) Region
      • Tsumeb
    		Hey's Mineral Index (1993); Gebhard, G. (1999): Tsumeb II. A Unique Mineral Locality. GG Publishing, Grossenseifen, Germany
    USA
     
    • South Dakota
      • Custer Co.
        • Custer District
          • Pringle
            • Cicero Peak
    		Rocks & Minerals: 75(3): 156-169.
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    Updated Mineral Entry: BykovaiteFrom Van King, 17th Feb 2012 19:50:20