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Mendozavilite-NaCu

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About Mendozavilite-NaCuHide

Formula:
[Na2(H2O)15Cu(H2O)6][Mo8P2Fe3+3O34(OH)3]
Colour:
Lime green
Lustre:
Sub-Adamantine, Vitreous
Hardness:
Crystal System:
Monoclinic
This page provides mineralogical data about Mendozavilite-NaCu.


Classification of Mendozavilite-NaCuHide

Approved
Approval Year:
2011

Physical Properties of Mendozavilite-NaCuHide

Sub-Adamantine, Vitreous
Transparency:
Transparent
Colour:
Lime green
Streak:
Colorless to very pale green
Hardness:
2½ on Mohs scale
Tenacity:
Flexible
Cleavage:
Perfect
{001}
Parting:
001}
Fracture:
Irregular/Uneven

Optical Data of Mendozavilite-NaCuHide

Type:
Biaxial (+)
RI values:
nα = 1.770(5) nβ = 1.785(5) nγ = 1.805(5)
2V:
Measured: 80° (10)
Max Birefringence:
δ = 0.035
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r < v, strong, inclined
Pleochroism:
Visible
Comments:
Pale olive green, Y > X = Z

Chemical Properties of Mendozavilite-NaCuHide

Formula:
[Na2(H2O)15Cu(H2O)6][Mo8P2Fe3+3O34(OH)3]
IMA Formula:
[Na2(H2O)15Cu(H2O)6][Mo8P2Fe3+3O34(OH)3]

Crystallography of Mendozavilite-NaCuHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 18.9984(16) Å, b = 10.9296(7) Å, c = 15.0818(12) Å
β = 129.906(2)°
Ratio:
a:b:c = 1.738 : 1 : 1.38
Unit Cell V:
2,402.29 ų (Calculated from Unit Cell)
Morphology:
Sixsided (pseudohexagonal) tabular crystals up to 1 mm across and 0.1mm thick. Forms observed: {001},{110}, {111},{20-1} and {110}.
Twinning:
Ubiquitous: contact on {001} and penetration, both on roatation of 120° about [102].

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.841(100)
7.330(37)
3.676(17)
3.132(19)
3.007(25)
2.932(21)
2.743(20)
1.769(22)

Type Occurrence of Mendozavilite-NaCuHide

General Appearance of Type Material:
As thin vein fillings and well developed crystals in cavities of quartz
Place of Conservation of Type Material:
Natural History Museum of Los Angeles County, catalogue numbers 60483, 60484,60485 and 60486
Geological Setting of Type Material:
In the oxidation zone of a porphyry copper deposit
Associated Minerals at Type Locality:

Synonyms of Mendozavilite-NaCuHide

Relationship of Mendozavilite-NaCu to other SpeciesHide

Other Members of this group:
Melkovite[Ca2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O36(OH)]Mon. 2/m : B2/m
Mendozavilite-KCa[K2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O34(OH)3] Mon. 2/m : B2/m
Mendozavilite-NaFe[Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2]Mon. 2/m : B2/m

Fluorescence of Mendozavilite-NaCuHide

Other InformationHide

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 Mendozavilite-NaCuHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kampf, A.R., Mills, S.J., Pluth, J.J., Steele, I.M. and Jenkins, R.A. (2011): Mendozavilite-NaCu, IMA 2011-039. CNMNC Newsletter No. 10, October 2011, page 2557
Kampf, A.R., Mills, S.J., Rumsey, M. S., Dini, M., Birch, W. D., Spratt, J., Pluth, J.J., Steele, I. M., Jenkins, R. A., and Pinch, W. W. (2012): The heteromolybdate family: structural relations, nomenclature scheme and new species. Mineralogical Magazine: 76(5): 1175-1207.

Internet Links for Mendozavilite-NaCuHide

Localities for Mendozavilite-NaCuHide

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)
 
  • Antofagasta Region
    • Antofagasta Province
Kampf, A.R., Mills, S.J., Pluth, J.J., Steele, I.M. and Jenkins, R.A. (2011): Mendozavilite-NaCu, IMA 2011-039. CNMNC Newsletter No. 10, October 2011, page 2557; Kampf, A.R., Mills, S.J., Rumsey, M. S., Dini, M., Birch, W. D., Spratt, J., Pluth, J.J., Steele, I. M., Jenkins, R. A., and Pinch, W. W. (2012): The heteromolybdate family: structural relations, nomenclature scheme and new species. Mineralogical Magazine: 76(5): 1175-1207.
    • El Loa Province
      • Calama
        • Chuquicamata District
samples analysed by Tony Kampf, Senior Curator, LAC museum, USA
Mineral and/or Locality  
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