Cualstibite-1M
A structural variant of Cualstibite
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About Cualstibite-1M
Formula:
(Cu,Al)3(OH)6[Sb5+(OH)6]
Ideal Cu:Al ratio is 2:1; very minor Mg may replace some of the Cu (Kolitsch et al., 2013).
Colour:
Pale bluish, pale blue-green, greenish
Lustre:
Vitreous
Crystal System:
Monoclinic
Name:
Polytype of cualstibite.
First Recorded Locality:
A polytype of Cualstibite
The original name cyanophyllite (given by K. Walenta in 1981), from the Greek for blue (κυανός) and a leaf (φύλλον), in allusion to the color and habit, was discredited in 2012 (IMA 12-B) during the definition of the hydrotalcite supergroup (Mills et al., 2012), since it was recognised as a polytype of cualstibite.
The original name cyanophyllite (given by K. Walenta in 1981), from the Greek for blue (κυανός) and a leaf (φύλλον), in allusion to the color and habit, was discredited in 2012 (IMA 12-B) during the definition of the hydrotalcite supergroup (Mills et al., 2012), since it was recognised as a polytype of cualstibite.
Unique Identifiers
Mindat ID:
1202
Long-form identifier:
mindat:1:1:1202:3
GUID
(UUID V4):
(UUID V4):
8e9f685c-438f-4454-9a6f-07e7a018a253
Classification of Cualstibite-1M
7.13.8
7 : Oxides and Hydroxides
13 : Oxides of As, Sb and Bi
7 : Oxides and Hydroxides
13 : Oxides of As, Sb and Bi
Physical Properties of Cualstibite-1M
Chemistry of Cualstibite-1M
Mindat Formula:
(Cu,Al)3(OH)6[Sb5+(OH)6]
Ideal Cu:Al ratio is 2:1; very minor Mg may replace some of the Cu (Kolitsch et al., 2013).
Ideal Cu:Al ratio is 2:1; very minor Mg may replace some of the Cu (Kolitsch et al., 2013).
Crystallography of Cualstibite-1M
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 9.938(1) Å, b = 8.890(1) Å, c = 5.493(1) Å
β = 102.90(1)°
β = 102.90(1)°
Ratio:
a:b:c = 1.118 : 1 : 0.618
Unit Cell V:
473.05 ų
Z:
2
Twinning:
Multiple twinning due to pseudotrigonal symmetry.
Comment:
Originally assumed to be orthorhombic (Walenta, 1981).
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
9.67 Å | (6) |
4.84 Å | (10) |
4.59 Å | (4) |
4.46 Å | (4) |
2.59 Å | (6) |
2.44 Å | (5) |
1.917 Å | (4) |
First Recorded Occurrence of Cualstibite-1M
Synonyms of Cualstibite-1M
Other Language Names for Cualstibite-1M
German:Cualstibit-1M
Common Associates
Associated Minerals Based on Photo Data:
10 photos of Cualstibite-1M associated with Azurite | Cu3(CO3)2(OH)2 |
3 photos of Cualstibite-1M associated with Cualstibite | Cu2Al(OH)6[Sb5+(OH)6] |
3 photos of Cualstibite-1M associated with Bariopharmacosiderite | Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O |
3 photos of Cualstibite-1M associated with Cyanotrichite Group | |
3 photos of Cualstibite-1M associated with Cornwallite | Cu5(AsO4)2(OH)4 |
3 photos of Cualstibite-1M associated with Quartz | SiO2 |
2 photos of Cualstibite-1M associated with Cualstibite-1T | Cu2AlSb(OH)12 |
2 photos of Cualstibite-1M associated with Malachite | Cu2(CO3)(OH)2 |
1 photo of Cualstibite-1M associated with Allophane | (Al2O3)(SiO2)1.3-2 · 2.5-3H2O |
1 photo of Cualstibite-1M associated with Dundasite | PbAl2(CO3)2(OH)4 · H2O |
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 Cualstibite-1M
mindat.org URL:
https://www.mindat.org/min-1202.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Cualstibite-1M
Localities for Cualstibite-1M
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.
Austria | |
| Auer et al. (2017) |
| Auer et al. (2017) |
| Auer (2019) |
France | |
| Escande et al. (1973) +6 other references |
Escande et al. (1973) +6 other references | |
| Favreau et al. (2003) |
Germany (FRL) | |
| Walenta (1981) +4 other references |
| Schnorrer-Köhler (1986) +1 other reference |
| Schnorrer-Köhler (1989) +1 other reference |
Greece | |
| Rieck et al. (2022) |
Italy | |
| Sylvano IOB Collection |
| EDX analysis by Italo Campostrini +1 other reference |
South Africa | |
| Cairncross (2004) |
Switzerland | |
| Ansermet (2012) +2 other references |
Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany