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Canutite

A valid IMA mineral species
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About CanutiteHide

Formula:
NaMn3[AsO4][AsO3(OH)]2
Colour:
Reddish brown
Lustre:
Vitreous
Hardness:
Specific Gravity:
4.112 (Calculated)
Crystal System:
Monoclinic
Name:
In honour of Claudio Canut de Bon Urrutia (born in 1937), Chilean mining engineer and Senior Professor of Geology and Mineralogy at La Serena University for 30 years.
Isostructural with:
The Mn3 analogue of magnesiocanutite. Isostructural with protonated members of the alluaudite group.


Unique IdentifiersHide

Mindat ID:
45345
Long-form identifier:
mindat:1:1:45345:7

Similar NamesHide

CanaditeA rock subtype
CanditeA synonym of Spinel
KanditeD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
KunatiteA valid IMA mineral speciesCuFe23+(PO4)2(OH)2 · 4H2O

IMA Classification of CanutiteHide

Classification of CanutiteHide

8.00.

8 : PHOSPHATES, ARSENATES, VANADATES
0 :
0 :

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
CanIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of CanutiteHide

Vitreous
Transparency:
Transparent
Colour:
Reddish brown
Streak:
Pale tan
Hardness:
2½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
On {010} and {101}.
Fracture:
Splintery
Density:
4.112 g/cm3 (Calculated)

Optical Data of CanutiteHide

Type:
Biaxial (+)
RI values:
nα = 1.712(3) nβ = 1.725(3) nγ = 1.756(3)
2V:
Measured: 65.6° (4)
Max. Birefringence:
δ = 0.044
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.

Surface Relief:
Moderate
Dispersion:
r < v (slight)
Comments:
Imperceptible

Chemistry of CanutiteHide

Mindat Formula:
NaMn3[AsO4][AsO3(OH)]2
Element Weights:
Element% weight
As37.055 %
O31.652 %
Mn27.171 %
Na3.790 %
H0.332 %

Calculated from ideal end-member formula.

Crystallography of CanutiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 12.3282(4) Å, b = 12.6039(5) Å, c = 6.8814(5) Å
β = 113.480(8)°
Ratio:
a:b:c = 0.978 : 1 : 0.546
Unit Cell V:
980.72 ų
Z:
4
Morphology:
Prisms elongated on [201İ] and exhibiting the forms {010}, {100}, {102}, {201} and {102İ}, or as tablets flattened on {102} and exhibiting the forms {102} and {110}.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020473CanutiteKampf A R, Mils S J, Hatert F, Nash B P, Dini M, Molina Donoso A A (2014) Canutite, NaMn3[AsO4][AsO3(OH)]2, a new protonated alluaudite-group mineral from the Torrecillas mine, Iquique Province, Chile Mineralogical Magazine 78 787-7952014Torrecillas mine, Iquique Province, Chile0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
46 : Near-surface hydrothermal alteration of minerals (see also #22)

Type Occurrence of CanutiteHide

General Appearance of Type Material:
As a secondary alteration phase.
Place of Conservation of Type Material:
Two cotype specimens are deposited in the Natural History Museum of Los Angeles, Los Angeles, California, USA, under catalogue numbers 64065 (from upper pit) and 64098 (from near shaft).
Geological Setting of Type Material:
Oxidation of native As and other As-bearing primary phases, followed by later alteration by saline fluids derived from evaporating meteoric water under hyperarid conditions
Associated Minerals at Type Locality:

Synonyms of CanutiteHide

Other Language Names for CanutiteHide

Dutch:Canutiet
German:Canutit

Relationship of Canutite to other SpeciesHide

Other Members of Alluaudite Group:
Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3Mon. 2/m : B2/b
'Alluaudite-Ca[]'4Ca4Mn2+4Fe3+8(PO4)12Mon. 2/m : B2/b
'Alluaudite-Na[]'4Na4Mn2+4Fe3+8(PO4)12Mon. 2/m : B2/b
ArseniopleiteNaCaMnMn2(AsO4)3Mon. 2/m
BadaloviteNa2Mg2Fe(AsO4)3Mon. 2/m : B2/b
BradaczekiteNaCu4(AsO4)3Mon. 2/m : B2/b
CalciohatertiteNaNaCa(CaFe3+)(AsO4)3Mon. 2/m : B2/b
CalciojohilleriteNaCaMg3(AsO4)3Mon. 2/m : B2/b
CamanchacaiteNaCaMg2[AsO4][AsO3(OH)]2Mon. 2/m : B2/b
Caryinite(Na,Pb)(Ca,Na)CaMn2+2(AsO4)3Mon. 2/m
ErikapohliteCu3(Zn,Cu,Mg)4Ca2(AsO4)6 · 2H2OMon. 2/m : B2/m
Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3Mon. 2/m : B2/b
'Ferroalluaudite-NaNa'Na4Na4Fe2+4Fe3+8(PO4)12Mon. 2/m : B2/m
'Ferrohagendorfite'NaCaFe2+Fe2+2(PO4)3Mon.
GroatiteNaCaMn2(PO4)[PO3(OH)]2Mon. 2/m : B2/b
HagendorfiteNaCaMn2+Fe2+2(PO4)3Mon. 2/m : B2/b
'Hagendorfite-NaNa'NaNaFe2+(Mn2+,Mn3+)(PO4)3 (?)Mon. 2/m : B2/b
HatertiteNa2(Ca,Na)(Fe3+,Cu)2(AsO4)3Mon. 2/m : B2/b
JohilleriteNa(Mg,Zn)3Cu(AsO4)3Mon. 2/m : B2/b
KeyiteCu2+3Zn4Cd2(AsO4)6 · 2H2OMon. 2/m
KhrenoviteNa3Fe3+2(AsO4)3Mon. 2/m : B2/b
Maghagendorfite(Na,◻)MgMn2+(Fe2+,Fe3+)2(PO4)3Mon. 2/m
MagnesiocanutiteNaMnMg2[AsO4]2[AsO2(OH)2]Mon. 2/m : B2/b
Magnesiohatertite(Na,Ca)2Ca(Mg,Fe3+)2(AsO4)3Mon. 2/m : B2/b
NickenichiteNa0.8Ca0.4Cu0.4(Mg,Fe)3(AsO4)3Mon. 2/m : B2/b
O'DanieliteNa(Zn,Mg)3(AsO4)(AsO3OH)2Mon. 2/m : B2/b
ParaberzeliiteNaCa2Mg2(AsO4)3Mon. 2/m : B2/b
'Unnamed (Mn-analogue of Alluaudite)'(Na,Ca)Mn2+(Mn3+,Fe3+,Fe2+)2(PO4)3
'Unnamed (Na-Mg Arsenate Hydroxyarsenate)'NaMg3(AsO4)(AsO3OH)2Mon. 2/m : B2/b
'Unnamed (Na-Zn-H Arsenate Hydroxyarsenate)'Na(Na0.6Zn0.4)Zn2(H0.6AsO4)(AsO3OH)2Mon. 2/m : B2/b
VaruliteNaCaMn2+Mn2+2(PO4)3Mon. 2/m : B2/b
YazganiteNaFe3+2(Mg,Mn2+)(AsO4)3 · H2OMon. 2/m : B2/b
ZhanghuifeniteNa3Mn4Mg2Al(PO4)6Mon. 2/m
ZincobradaczekiteNaZn2Cu2(AsO4)3Mon. 2/m : B2/b

Common AssociatesHide

Associations Based on Photo Data:
16 photos of Canutite associated with MagnesiokoritnigiteMg(AsO3OH) · H2O
11 photos of Canutite associated with LavendulanNaCaCu5(AsO4)4Cl · 5H2O
4 photos of Canutite associated with HaliteNaCl
2 photos of Canutite associated with GypsumCaSO4 · 2H2O
1 photo of Canutite associated with TorrecillasiteNa(As,Sb)3+4O6Cl
1 photo of Canutite associated with JuansilvaiteNa5Al3[AsO3(OH)]4[AsO2(OH)2]2(SO4)2 · 4H2O
1 photo of Canutite associated with Native SulphurS8

Related Minerals - Strunz-mindat GroupingHide

8.00.Metauramphite(NH4)2(UO2)2(PO4)2.6H2O
8.00.StrontiohurlbutiteSrBe2(PO4)2 Mon. 2/m : P21/b
8.00.ChongiteCa3Mg2(AsO4)2(AsO3OH)2 · 4H2OMon. 2/m : B2/b
8.00.GrandaiteSr2Al(AsO4)2(OH)Mon. 2/m : P21/m
8.00.'UM1997-10-AsO:CaV'Ca(VO)2(AsO4)2.4H2O
8.00.05'Leobenite'Hydrated Ca-Fe phosphate

Other InformationHide

Notes:
Slowly soluble in cold, dilute HCl
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 CanutiteHide

References for CanutiteHide

Localities for CanutiteHide

Showing 1 localities.

This 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.
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Locality ListHide

- 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.
Chile (TL)
 
  • Tarapacá
    • Iquique Province
      • Iquique
Williams et al. (2013) +1 other reference
 
and/or  
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