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Huenite

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About HueniteHide

Formula:
Cu4(MoO4)3(OH)2
author's formula: Cu4Mo3O12(OH)2
Colour:
Very dark reddish-brown
Lustre:
Adamantine, Vitreous
Hardness:
3½ - 4
Specific Gravity:
5.1 (Calculated)
Crystal System:
Trigonal
Name:
Named in honor of Edgar Huen.
Chemically close to lindgrenite, markascherite, and szenicsite. Structure of the mineral is determined.

Reported as copper-molybdenum oxy-hydroxide mineral. Associates include an unknown pale purple phase.


Classification of HueniteHide

Approved
Approval Year:
2015
First Published:
2019

Physical Properties of HueniteHide

Adamantine, Vitreous
Colour:
Very dark reddish-brown
Streak:
Pale reddish-brown to pinkish
Hardness:
3½ - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
on {010}
Fracture:
Irregular/Uneven
Density:
5.1 g/cm3 (Calculated)

Chemical Properties of HueniteHide

Formula:
Cu4(MoO4)3(OH)2

author's formula: Cu4Mo3O12(OH)2

Crystallography of HueniteHide

Crystal System:
Trigonal
Class (H-M):
3m - Ditrigonal Pyramidal
Space Group:
P3 1c
Cell Parameters:
a = 7.653(5) Å, c = 9.411(6) Å
Ratio:
a:c = 1 : 1.23
Unit Cell V:
477.4 ų
Z:
2
Morphology:
Flattened orthorhombic prisms up to 60–70 μm in size, weakly elongated along [001].
Comment:
Space group in original IMA list erroneously reported as "P31/c"; later this misprint was corrected to P31c.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.786Å(25)
5.372Å(24)
3.810Å(51)
2.974Å(100)
2.702Å(41)
2.497Å(38)
1.712Å(60)
1.450Å(37)

Type Occurrence of HueniteHide

General Appearance of Type Material:
Flattened, orthorhombic prisms, up to 60–70 μm in diameter, and weakly elongated along [001]; these form aggregates, up to 1 mm in diameter
Place of Conservation of Type Material:
Collections of the Laboratoire de Minéralogie, University of Liège, Belgium (catalogue no. 20399)
Empirical Formula of Type Material:
(Cu3.519Fe2+0.403)Σ3.922(Mo2.907S0.090Si0.003)Σ3.000O12·(OH)2.229
Geological Setting of Type Material:
Fractures in a quartz breccia
Associated Minerals at Type Locality:
Reference:
Vignola, P., Rotiroti, N., Gatta, G.D., Risplendente, A., Hatert, F., Bersani, D., Mattioli, V. (2019): Huenite, Cu4Mo3O12(OH)2, a New Copper-molybdenum Oxy-hydroxide Mineral from the San Samuel Mine, Carrera Pinto, Cachiyuyo De Llampos District, Copiapo Province, Atacama Region, Chile. Canadian Mineralogist, 57: 467-474.

Synonyms of HueniteHide

Fluorescence of HueniteHide

Non-fluorescent (SWUV & LWUV)

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 HueniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Vignola, P., Gatta, G.D., Merlini, M., Rotiroti, N., Hatert, F., Bersani, D., Risplendente, A., Gentile, P., Pavese, A. (2016): Huenite, IMA 2015-122. CNMNC Newsletter No. 31, June 2016, page 692; Mineralogical Magazine: 80: 691–697
Vignola, P., Rotiroti, N., Gatta, G.D., Risplendente, A., Hatert, F., Bersani, D., Mattioli, V. (2019): Huenite, Cu4Mo3O12(OH)2, a New Copper-molybdenum Oxy-hydroxide Mineral from the San Samuel Mine, Carrera Pinto, Cachiyuyo De Llampos District, Copiapo Province, Atacama Region, Chile. Canadian Mineralogist: 57: 467-474.

Internet Links for HueniteHide

Localities for HueniteHide

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
 
  • Antofagasta
    • El Loa Province
      • Calama
        • Chuquicamata District
Andreas Schloth specimen & SEM-EDS.
  • Atacama
    • Copiapó Province
      • Cachiyuyo de Llampos district
        • Carrera Pinto
Vignola, P., Gatta, G.D., Merlini, M., Rotiroti, N., Hatert, F., Bersani, D., Risplendente, A., Gentile, P., Pavese, A. (2016): Huenite, IMA 2015-122. CNMNC Newsletter No. 31, June 2016, page 692; Mineralogical Magazine: 80: 691–697; Vignola, P., Rotiroti, N., Gatta, G.D., Risplendente, A., Hatert, F., Bersani, D., Mattioli, V. (2019): Huenite, Cu4Mo3O12(OH)2, a New Copper-molybdenum Oxy-hydroxide Mineral from the San Samuel Mine, Carrera Pinto, Cachiyuyo De Llampos District, Copiapo Province, Atacama Region, Chile. Canadian Mineralogist, 57, 467-474.
 
Mineral and/or Locality  
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