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Arsenogoyazite

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Big Photo

Mammoth Mine (Mammoth shaft), Tintic District, East Tintic Mts, Juab Co., Utah, USA
© Brent Thorne 2011

Show Arsenogoyazite Photos (20)



Formula:
SrAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
System:TrigonalColour:White to colorless, Pale ...
Lustre:Sub-Vitreous, Resinous, Waxy, Greasy, DullHardness:4
Member of:Crandallite Subgroup > Alunite Supergroup
Name:Named by Kurt Walenta and Pete J. Dunn in 1987 in allusion to its composition, being the ARSENate analogue of Goyazite.


Alunite Supergroup, Crandallite Sub-group.
The strontium analogue of Philipsbornite and Arsenocrandallite, and the arsenate analogue of Goyazite.

Classification of Arsenogoyazite

IMA status:Approved
Strunz 8th edition ID:7/B.36-40
Nickel-Strunz 10th (pending) edition ID:8.BL.10

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
Dana 8th edition ID:42.7.4.3

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
Hey's CIM Ref.:20.4.5

20 : Arsenates (also arsenates with phosphate, but without other anions)
4 : Arsenates of Group III metals (Al, rare earths)
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Type Occurrence of Arsenogoyazite

Type Locality:Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
General Appearance of Type Material:Aggregates and crusts of pale green to white minute rhombohedral crystals
Year of Discovery:1984
Geological Setting of type material:Oxidized veins of a hydrothermal polymetallic deposit.
Associated Minerals at type locality:
QuartzOliveniteOliveniteMalachiteCualstibite
CornwalliteBrochantiteBaryteArsenogorceixite

Physical Properties of Arsenogoyazite

Lustre:Sub-Vitreous, Resinous, Waxy, Greasy, Dull
Diaphaneity (Transparency):Transparent, Translucent
Colour:White to colorless, Pale yellow, Pale Green, Grayish-green
Streak:White
Hardness (Mohs):4
Tenacity:Brittle
Cleavage:None Observed
Probably perfect {0001} as in other members of the group
Fracture:Conchoidal
Density (measured):3.355 g/cm3
Density (calculated):3.33 g/cm3

Crystallography of Arsenogoyazite

Crystal System:Trigonal
Class (H-M):3m (3 2/m) - Hexagonal Scalenohedral
Space Group:R3m {R3 2/m}
Cell Parameters:a = 7.10Å, c = 17.16Å
Ratio:a:c = 1 : 2.417
Unit Cell Volume:V 749.14 ų (Calculated from Unit Cell)
Z:3
Morphology:Rhombohedral to platy
X-Ray Powder Diffraction:
d-spacingIntensity
5.84 (70)
3.56 (80)
3.03 (100)
2.31 (40)
2.27 (40)
1.933 (50)
1.777 (40)

Optical Data of Arsenogoyazite

Type:Uniaxial (-)
RI values: nα = 1.643 nβ = 1.643 nω = 1.698 nε = 1.688
Birefringence:0.000
Maximum Birefringence:δ = 0.010

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Optical Extinction:Parallel. It is not certain that the higher refractive indices were measured on true arsenogoyazite.
Pleochroism:Non-pleochroic

Chemical Properties of Arsenogoyazite

Formula:
SrAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Essential elements:Al, As, H, O, Sr
All elements listed in formula:Al, As, H, O, Sr

Relationship of Arsenogoyazite to other Species

Series:Forms a series with Arsenogorceixite (see here)
Member of:Crandallite Subgroup > Alunite Supergroup
Other Members of Group:

- +
Arsenocrandallite
CaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Arsenogorceixite
BaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Crandallite
CaAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Dussertite
BaFe
3+
3
(AsO
 
4
)
 
2
(OH)
 
5
Galloplumbogummite
Pb(Ga,Al,Ge)
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Gorceixite
BaAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Goyazite
SrAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Kintoreite
PbFe
3+
3
(PO
 
4
)
 
2
(OH,H
 
2
O)
 
6
Philipsbornite
PbAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Plumbogummite
PbAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Segnitite
PbFe
3+
3
(AsO
 
4
)
 
2
(OH,H
 
2
O)
 
6
Springcreekite
BaV
3+
3
(PO
 
4
)
 
2
(OH,H
 
2
O)
 
6
Related Minerals - Nickel-Strunz Grouping):

- +
8.BL.05Beudantite
PbFe
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Corkite
PbFe
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Hidalgoite
PbAl
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Hinsdalite
PbAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Kemmlitzite
(Sr,Ce)Al
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Svanbergite
SrAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Weilerite
8.BL.05Woodhouseite
CaAl
 
3
(PO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.05Gallobeudantite
PbGa
 
3
(AsO
 
4
)(SO
 
4
)(OH)
 
6
8.BL.10Arsenogorceixite
BaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Arsenocrandallite
CaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Benauite
SrFe
3+
3
(PO
 
4
,SO
 
4
)(HPO
 
4
,PO
 
4
)(OH)
 
6
8.BL.10Crandallite
CaAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Dussertite
BaFe
3+
3
(AsO
 
4
)
 
2
(OH)
 
5
8.BL.10Eylettersite
(Th,Pb)Al
 
3
(PO
 
4
,SiO
 
4
)
 
2
(OH)
 
6
8.BL.10Gorceixite
BaAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Goyazite
SrAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Kintoreite
PbFe
3+
3
(PO
 
4
)
 
2
(OH,H
 
2
O)
 
6
8.BL.10Philipsbornite
PbAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Plumbogummite
PbAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
8.BL.10Segnitite
PbFe
3+
3
(AsO
 
4
)
 
2
(OH,H
 
2
O)
 
6
8.BL.10Springcreekite
BaV
3+
3
(PO
 
4
)
 
2
(OH,H
 
2
O)
 
6
8.BL.13Arsenoflorencite-(La)
(La,Ce,Nd)(Al,Fe
3+
 
)
 
3
(AsO
 
4
,PO
 
4
)
 
2
(OH)
 
6
8.BL.13Arsenoflorencite-(Nd)
NdAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
8.BL.13Arsenoflorencite-(Ce)
CeAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
8.BL.13Florencite-(Ce)
CeAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.13Florencite-(La)
LaAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.13Florencite-(Nd)
(Nd,La,Ce)Al
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.13Waylandite
BiAl
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.13Zaïrite
Bi(Fe
3+
 
,Al)
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.13Arsenowaylandite
BiAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
8.BL.13Graulichite-(Ce)
CeFe
3+
3
(AsO
 
4
)
 
2
(OH)
 
6
8.BL.13Florencite-(Sm)
(Sm,Nd)Al
 
3
(PO
 
4
)
 
2
(OH)
 
6
8.BL.15Viitaniemiite
Na(Ca,Mn
2+
 
)Al(PO
 
4
)(F,OH)
 
3
8.BL.25Pattersonite
PbFe
3+
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
20.4.1Mansfieldite
AlAsO
 
4
 · 2H
 
2
O
20.4.2Bulachite
Al
 
2
(AsO
 
4
)(OH)
 
3
 · 3H
 
2
O
20.4.3Pharmacoalumite
KAl
 
4
(AsO
 
4
)
 
3
(OH)
 
4
 · 6.5H
 
2
O
20.4.4Luetheite
Cu
 
2
Al
 
2
(AsO
 
4
)
 
2
(OH)
 
4
20.4.6Arsenocrandallite
CaAl
 
3
(AsO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
20.4.7Arsenoflorencite-(Ce)
CeAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
20.4.8Arsenoflorencite-(La)
(La,Ce,Nd)(Al,Fe
3+
 
)
 
3
(AsO
 
4
,PO
 
4
)
 
2
(OH)
 
6
20.4.9Arsenoflorencite-(Nd)
NdAl
 
3
(AsO
 
4
)
 
2
(OH)
 
6
20.4.10Gerdtremmelite
(Zn,Fe)(Al,Fe)
 
2
(AsO
 
4
)(OH)
 
5
20.4.11Gasparite-(Ce)
(Ce,REE)(AsO
 
4
)
20.4.12Chernovite-(Y)
Y(AsO
 
4
)
20.4.13Agardite-(Y)
(Y,Ca)Cu
 
6
(AsO
 
4
)
 
2
(AsO
 
4
,HAsO
 
4
)(OH)
 
6
 · 3H
 
2
O
20.4.14Agardite-(La)
(La,Ce)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
20.4.15Goudeyite
(Al,Y)Cu
 
6
(AsO
 
4
)
 
3
(OH)
 
6
 · 3H
 
2
O
20.4.16Retzian-(Ce)
Mn
2+
2
Ce(AsO
 
4
)(OH)
 
4
20.4.17Retzian-(La)
(Mn
2+
 
,Mg)
 
2
(La,Ce,Nd)(AsO
 
4
)(OH)
 
4
20.4.18Retzian-(Nd)
Mn
2+
2
(Nd,Ce,La)(AsO
 
4
)(OH)
 
4

Other Names for Arsenogoyazite

Synonyms:
IMA1983-043
Other Languages:
German:Arsenogoyazit
Weilerit
Russian:Арсеногойяцит
Spanish:Arsenogoyazita
Weilerita

Other Information

Fluorescence in UV light:Not fluorescent in UV
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Arsenogoyazite

Reference List:

- +
Walenta, K. & Dunn, P. J. (1984): Arsenogoyazit, ein neues Mineral der Crandallitgruppe aus dem Schwarzwald. Schweizerische Mineralogische und Petrographiswche Mitteilungen: 64: 11-19. (in German).

American Mineralogist (1986): 71: 845-846.

Internet Links for Arsenogoyazite

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    • Localities for Arsenogoyazite

    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.
    Austria
     
    • Tyrol
      • East Tyrol
        • Kals valley
          • Ködnitz valley
    		Bernhard, F. & Schachinger, T. (2010): 1636) Arsenogoyazit aus dem Ködnitztal bei Kals am Großglockner, Osttirol. Pp. 223-224 in Niedermayr et al. (2010): Neue Mineralfunde aus Österreich LIX. Carinthia II, 200./120., 199-260.
    Belgium
     
    • Luxembourg Province
      • Stavelot Massif
        • Vielsalm
          • Grand Halleux
    		http://users.skynet.be/jose.dehove/photos/Hourt.htm
    China
     
    Rubo Zhang, Nianzhen Yang, Shuangting Yi, and Chongliang Du (1987): Acta Mineralogica Sinica 7(4), 313-316
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Liberec Region
    		Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
    France
     
    • Auvergne
      • Haute-Loire
        • Brioude
          • Vieille-Brioude
    		P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
    • Rhône-Alpes
      • Rhône
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		Schweiz.Min.Petr.Mitt.(1984) 64, 11-19; Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German); KOLITSCH, U. (1997): Uranosphärit und weitere neue Mineralfunde von der Grube Clara im Schwarzwald. - Mineralien-Welt 8 (3), 18-26.
    • Thuringia
      • Harz
        • Nordhausen
          • Ilfeld
    		J. Gröbner, U. Kolitsch and J. Wesiger (2011): New finds of vanadate and rare-earth minerals from the manganese mine Ilfeld, Harz. Mineralien-Welt 22 (1), 41-49. (in German)
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
    		No reference listed
    GRÖBNER, J. (2001): Roter Skorodit und weitere ungewöhnliche Arsenate: Die Mineralien des Abbaus 132 der Grube Christiana, Lavrion/Griechenland. Lapis, 26 (11), 13-21.
    Schneider V. (2001) Arsenogoyazite, une nouvelle occurrence au Laurion, Grèce. Le Cahier des Micromonteurs, 72, p 3. [exact locality on Mindat given by V. Schneider himself]
    Namibia
     
    • Otjikoto (Oshikoto) Region
      • Tsumeb
    		Keller, P. & Innes, J. (1986): "Neue Minerale von Tsumeb." Lapis, 11 (9), 28-32.
    Spain
     
    • Andalusia
      • Almería
        • Tíjola
    		C. MENOR-SALVÁN (2012) Arsenogoyazita e Iltisita de la mina “Las Cocotas”, Tijola, Almería, (España). Acopios, 3: 1-5.
    • Murcia
      • Mazarrón-Águilas
        • Pastrana
    		Jordi Fabre + EDS analysis for G. Favreau by Association Jean Wyart, Paris
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Oberhalbstein (Surses; Sursass)
        • Tinizong (Tinzen)
    		[MinRec 32:211]; Uwe Kolitsch (unpublished crystal-structure refinement)
    UK
     
    • England
      • Cornwall
        • St Erth - Gwithian Area
          • Gwinear
            • Reawla
    		Lapis 33 (2), 2008, p. 39
        • St Just District
          • St Just
            • Botallack
              • Botallack Mine
    		UKJMM 26:27-28
    USA
     
    • New Mexico
      • Hidalgo Co.
        • San Simon District
          • Granite Gap
    		R&M 77:5 p298-305
    • Utah
      • Juab Co.
        • East Tintic Mts
          • Tintic District
    		Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
    Mineral and/or Locality
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