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Cualstibite-1M

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Monte Avanza Mine, Forni Avoltri, Udine Province, Friuli Venezia Giulia, Italy
© Vincent Bourgoin

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Formula:
(Cu,Al)
 
3
(OH)
 
6
[Sb
5+
 
(OH)
 
6
]
System:MonoclinicColour:Pale bluish, pale ...
Name:From the Greek for blue (κυανός) and a leaf (φύλλον), in allusion to the color and habit.
A polytype of Cualstibite

The original name cyanophyllite was discredited in 2012 IMA 12-B during the definition of hydrotalcite supergroup (Mills et al., 2012) since it was recognised as a polytype of cualstibite.

Classification of Cualstibite-1M

IMA status:Discredited 2012
Explanation of status:Discredited in 2012 IMA 12-B during the definition of hydrotalcite supergroup.
Hey's CIM Ref.:7.13.8

7 : Oxides and Hydroxides
13 : Oxides of As, Sb and Bi
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Type Occurrence of Cualstibite-1M

Type Locality:Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

Physical Properties of Cualstibite-1M

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Pale bluish, pale blue-green, greenish

Crystallography of Cualstibite-1M

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b {P1 1 21/b} {P21/c} {P1 21/c 1} {P21/a}
Space Group Setting:P21/c
Cell Parameters:a = 9.938(1) Å, b = 8.890(1) Å, c = 5.493(1) Å
β = 102.90(1)°
Ratio:a:b:c = 1.118 : 1 : 0.618
Unit Cell Volume:V 473.05 ų
Z:2
Twinning:Multiple twinning due to pseudotrigonal symmetry.
Comment:Originally assumed to be orthorhombic (Walenta 1981).

Chemical Properties of Cualstibite-1M

Formula:
(Cu,Al)
 
3
(OH)
 
6
[Sb
5+
 
(OH)
 
6
]
Essential elements:Cu, H, O, Sb
All elements listed in formula:Al, Cu, H, O, Sb

Relationship of Cualstibite-1M to other Species

Related Minerals - Hey's Index Grouping:

- +
7.13.1Arsenolite
As
 
2
O
 
3
7.13.2Claudetite
As
 
2
O
 
3
7.13.3Sénarmontite
Sb
 
2
O
 
3
7.13.4Valentinite
Sb
 
2
O
 
3
7.13.5Cervantite
Sb
3+
 
Sb
5+
 
O
 
4
7.13.6Stibiconite
7.13.7Bahianite
Al
 
5
Sb
 
3
O
 
14
(OH)
 
2
7.13.9Bismutostibiconite
Bi(Sb
5+
 
,Fe
3+
 
)
 
2
O
 
7
7.13.107.13.11Stibivanite
Sb
 
2
VO
 
5
7.13.12Bismite
Bi
 
2
O
 
3
7.13.13Sillénite
Bi
 
12
SiO
 
20

Other Names for Cualstibite-1M

Synonyms:
CyanophylliteIMA1980-065
Other Languages:
German:Cualstibit-1M

Other Information

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 Cualstibite-1M

Reference List:

- +
Walenta, K. (1981): Cyanophyllit, ein neues Mineral aus der Grube Clara bei Oberwolfach im mittleren Schwarzwald. Chem. Erde, 40, 195-200. (in German).

American Mineralogist: 66: 1274.

Walenta, K. (1984): Cualstibit, ein neues Sekundärmineral aus der Grube Clara im mittleren Schwarzwald (BRD). Chem. Erde 43, 255-260. (in German) [with revised formula of cyanophyllite]

Walenta, K. (1999): Zur Formel des Cyanophyllits. Erzgräber, 13, 45-46.

U. Kolitsch and G. Giester (2007): A preliminary determination of the crystal structure of cyanophyllite and revision of its chemical formula. Mitt. Österr. Mineral. Ges. 153, 66. (Abstract)

Mills, S.J., Christy, A.G., Génin, J.-M.R., Kameda, T. and Colombo, F. (2012): Nomenclature of the hydrotalcite supergroup: natural layered double hydroxides. Mineralogical Magazine, 76, 1289-1336.

Kolitsch, U., Giester, G. & Pippinger, T. (2013): The crystal structure of cualstibite-1M (formerly cyanophyllite), its revised chemical formula and its relation to cualstibite-1T. Mineralogy and Petrology (in press)

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    • Localities for Cualstibite-1M

    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.
    France
     
    • Languedoc-Roussillon
      • Aude
        • Tuchan
          • Padern
    		Favreau G., Berbain C., Meisser N. (2003), Cyanophyllite et autres espèces rares de la mine du Tistoulet, Padern (Aude), Le Cahier des Micromonteurs, n°4, pp: 17-23
    • Lorraine
      • Vosges
        • Val-d'Ajol
    		Lheur C., Moreau F. (1994), Les minéralisations du filon du Bas Hérival près du Val d'Ajol (Vosges), Le Cahier des Micromonteurs, n°2, pp: 3-14
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		Chemie der Erde,(1981) 40, 195-200; 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.
    • North Rhine-Westphalia
      • Sauerland
        • Iserlohn
          • Letmathe
    		SCHNORRER-KÖHLER, G. (1986): Neue Minerale von der Schlackenhalde der ehemaligen Zinkhütte Genna in Letmathe/Sauerland. Aufschluss 37, 55-67.
    • Rhineland-Palatinate
      • Siegerland
        • Niederfischbach
    		Schnorrer-Köhler, G. (1989): Die Minerale der Grube Fischbacher Werk bei Niederfischbach im Bergamtsbezirk Betzdorf/Siegerland. Aufschluss, 40, 75-94 ; Weiss: "Mineralfundstellen, Deutschland West", 1990
    Italy
     
    • Friuli Venezia Giulia
      • Udine Province
        • Degano Valley
    		Sylvano IOB Collection
        • Forni Avoltri
    		EDX analysis by Italo Campostrini; Mills, S.J., Christy, A.G., Kampf, A.R., Housley, R.M., Favreau, G., Boulliard, J.-C., Bourgoin, V. (2012) Zincalstibite-9R: the first nine-layer polytype with the layered double hydroxide structure-type. Mineralogical Magazine, 76, 1337-1345.
    South Africa
     
    • Northern Cape Province
      • Namaqualand
    		Min Rec 35:4 pp289-317
    Switzerland
     
    • Wallis (Valais)
      • Anniviers Valley
        • Saint-Luc
    		Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer); - Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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