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Juangodoyite

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Santa Rosa Mine, Iquique, Iquique Province, Tarapacá Region, Chile
© Brent Thorne

Show Juangodoyite Photos (5)
Formula:
Na
 
2
Cu(CO
 
3
)
 
2
System:MonoclinicColour:vivid ultramarine blue
Name:Named after Juan Godoy, discoverer of the Chañarcillo silver mine


Isostructural with synthetic sodium di(carbonato)cuprate(II)

Classification of Juangodoyite

IMA status:Approved 2004
Strunz 8th edition ID:5/B.05-15
Nickel-Strunz 10th (pending) edition ID:5.AB.60

5 : CARBONATES (NITRATES)
A : Carbonates without additional anions, without H2O
B : Alkali-earth (and other M2+) carbonates
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Type Occurrence of Juangodoyite

Type Locality:Santa Rosa Mine, Iquique, Iquique Province, Tarapacá Region, Chile
General Appearance of Type Material:fine-grained pseudomorphs, with crystallites up to 5 μm in size, after small laths of chalconatronite
Associated Minerals at type locality:
MalachiteChalconatroniteCalciteAnhydrite

Physical Properties of Juangodoyite

Colour:vivid ultramarine blue
Density (calculated):2.984 g/cm3

Crystallography of Juangodoyite

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}
Cell Parameters:a = 6.171Å, b = 8.171Å, c = 5.645Å
β = 116.23°
Ratio:a:b:c = 0.755 : 1 : 0.691
Unit Cell Volume:V 255.33 ų
Z:2
X-Ray Powder Diffraction:
d-spacingIntensity
2.666 (100)
4.258 (75)
5.056 (66)
2.619 (65)
Comments:Format: d/Å (I/%) (hkl)

Chemical Properties of Juangodoyite

Formula:
Na
 
2
Cu(CO
 
3
)
 
2
Essential elements:
All elements listed in formula:C, Cu, Na, O
Analyical Data:empirical formula calculated on the basis of 6 oxygen atoms 
Na2O (28.27)
CuO (33.77)
CO2 (38.45)

sum 100.49
Empirical Formula:
Na
 
2.08
Cu
 
0.98
(C
 
1.99
O
 
6
)

Relationship of Juangodoyite to other Species

Related Minerals - Nickel-Strunz Grouping):
5.AB.05Calcite
CaCO
 
3
5.AB.05Gaspéite
(Ni,Mg,Fe)CO
 
3
5.AB.05Magnesite
MgCO
 
3
5.AB.05Otavite
CdCO
 
3
5.AB.05Rhodochrosite
MnCO
 
3
5.AB.05Siderite
FeCO
 
3
5.AB.05Smithsonite
ZnCO
 
3
5.AB.05Spherocobaltite
CoCO
 
3
5.AB.10Ankerite
Ca(Fe
2+
 
 ,Mg,Mn
2+
 
)(CO
 
3
)
 
2
5.AB.10Dolomite
CaMg(CO
 
3
)
 
2
5.AB.10Kutnohorite
Ca(Mn,Mg,Fe)(CO
 
3
)
 
2
5.AB.10Minrecordite
CaZn(CO
 
3
)
 
2
5.AB.15Aragonite
CaCO
 
3
5.AB.15Cerussite
PbCO
 
3
5.AB.15Strontianite
SrCO
 
3
5.AB.15Witherite
BaCO
 
3
5.AB.20Vaterite
CaCO
 
3
5.AB.25Huntite
CaMg
 
3
(CO
 
3
)
 
4
5.AB.30Norsethite
BaMg(CO
 
3
)
 
2
5.AB.35Alstonite
BaCa(CO
 
3
)
 
2
5.AB.40Olekminskite
Sr(Sr,Ba)(CO
 
3
)
 
2
5.AB.40Paralstonite
BaCa(CO
 
3
)
 
2
5.AB.45Barytocalcite
BaCa(CO
 
3
)
 
2
5.AB.50Carbocernaite
(Ca,Na)(Sr,Ce,Ba)(CO
 
3
)
 
2
5.AB.55Benstonite
(Ba,Sr)
 
6
(Ca,Mn)
 
6
Mg(CO
 
3
)
 
13

Other Names for Juangodoyite

Synonyms:
IMA2004-036
German names:
Juangodoyit
Russian names:
Хуангодойит

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 Juangodoyite

Reference List:J. Schlüter, D. Pohl: "Juangodoyite, Na2Cu(CO3)2, a new mineral from the Santa Rosa mine, Atacama desert, Chile", N. Jb. Min. Abh. 182(1):11-14 (2005)

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    Localities for Juangodoyite

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    Chile
     
    • Tarapacá Region
      • Iquique Province
        • Iquique
    		J. Schlüter, D. Pohl: N. Jb. Min. Abh. 182(1):11-14 (2005)
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