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Canutite

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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.


Classification of CanutiteHide

Approved
Approval Year:
2013
First Published:
2014
8.00.

8 : PHOSPHATES, ARSENATES, VANADATES
0 :
0 :

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
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r < v (slight)
Comments:
Imperceptible

Chemical Properties of CanutiteHide

Formula:
NaMn3[AsO4][AsO3(OH)]2
IMA Formula:
NaMn3(AsO4)[AsO3(OH)]2

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}.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.34Å(36)
3.296Å(68)
3.151Å(41)
2.818Å(52)
2.750Å(100)
2.653Å(36)
1.697Å(44)
1.511Å(49)

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:
Reference:
Kampf, A.R., Mills, 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: 787-795.

Synonyms of CanutiteHide

Relationship of Canutite to other SpeciesHide

Other Members of this group:
Alluaudite(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3Mon.
Alluaudite-Ca□4Ca4Mn2+4Fe3+8(PO4)12Mon. 2/m : B2/b
Alluaudite-Na□4Na4Mn2+4Fe3+8(PO4)12Mon. 2/m : B2/b
Arseniopleite(Ca,Na)NaMn2+(Mn2+,Mg,Fe2+)2(AsO4)3Mon. 2/m : P2/b
BadaloviteNa2Mg2Fe(AsO4)3Mon. 2/m : B2/b
BradaczekiteNaCu4(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)6·2H2O Mon. 2/m : B2/m
Ferroalluaudite(Na,Ca)Fe2+(Fe3+,Mn2+,Fe2+)2(PO4)3Mon. 2/m : B2/b
Ferroalluaudite-NaNaNa4Na4Fe2+4Fe3+8(PO4)12Mon. 2/m : B2/m
FerrohagendorfiteNaCaFe2+Fe2+2(PO4)3Mon.
GroatiteNaCaMn2(PO4)(HPO4)2Mon. 2/m : B2/b
HagendorfiteNaCaMn2+Fe2+2(PO4)3Mon. 2/m : B2/b
Hagendorfite-(Na)(Na)Fe2+Mn2+(PO4)-(Na)(Na)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,)(Na,Ca,Fe2+)Mn(Mg,Fe2+,Fe3+)3(PO4)3Mon.
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)3H2(AsO4)3Mon. 2/m : B2/b
ParaberzeliiteNaCa2Mg2(AsO4)3Mon. 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

Associated Minerals Based on Photo Data:
8 photos of Canutite associated with MagnesiokoritnigiteMg(AsO3OH)·H2O
4 photos of Canutite associated with LavendulanNaCaCu5(AsO4)4Cl · 5H2O
1 photo of Canutite associated with HaliteNaCl

Related Minerals - Nickel-Strunz GroupingHide

8.00.UM1997-10-AsO:CaVCa(VO)2(AsO4)2·4H2O
8.00.Mg-FillowiteNa2Ca(Mn2+4Mg2Fe2+)7(PO4)6
8.00.StrontiohurlbutiteSrBe2(PO4)2Mon. 2/m : P21/b
8.00.GrandaiteSr2Al(AsO4)2(OH)Mon. 2/m : P21/m
8.00.Metauramphite(NH4)2(UO2)2(PO4)2·6H2O

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.

References for CanutiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kampf, A.R., Mills, S.J., Hatert, F., Nash, B. and Dini, M. (2013) Canutite, IMA 2013-070. CNMNC Newsletter No. 18, December 2013, page 3251. Mineralogical Magazine: 77: 3249-3258.
Kampf, A.R., Mills, 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: 787-795.

Internet Links for CanutiteHide

Localities for CanutiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Chile (TL)
 
  • Tarapacá
    • Iquique Province
      • Salar Grande
Kampf, A.R., Mills, S.J., Hatert, F., Nash, B. and Dini, M. (2013) Canutite, IMA 2013-070. CNMNC Newsletter No. 18, December 2013, page 3251; Mineralogical Magazine, 77, 3249-3258; Kampf, A.R., Mills, 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, 787-795.
 
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