Huenite (original) (raw)

A valid IMA mineral species

About HueniteHide

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author's formula: Cu4Mo3O12(OH)2

Colour:

Very dark reddish-brown

Lustre:

Adamantine, Vitreous

Specific Gravity:

5.1 (Calculated)

Name:

Named in honor of Edgar Huen (b. 27 May 1947, Milan, Italy), a mineral collector and an expert in Alpine fissure minerals and worldwide systematic mineralogy. He co-discovered the mineral.

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.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:47779:4

a1a6929a-a478-4edf-b196-ee2ce96b3acb

IMA Classification of HueniteHide

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Type description reference:

Vignola, Pietro, Rotiroti, Nicola, Gatta, G. Diego, Risplendente, Andrea, Hatert, Frédéric, Bersani, Danilo, Mattioli, Vittorio (2019) Huenite, Cu4Mo3O12(OH)2, a New Copper-molybdenum Oxy-hydroxide Mineral from the San Samuel Mine, Carrera Pinto, Cachiyuyo De Llampos District, CopiapÓ Province, Atacama Region, Chile. The Canadian Mineralogist, 57 (4) 467-474 doi:10.3749/canmin.1900011

Classification of HueniteHide

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7.GB.15

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
B : With additional anions and/or H2O

Mineral SymbolsHide

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

Physical Properties of HueniteHide

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Colour:

Very dark reddish-brown

Streak:

Pale reddish-brown to pinkish

Cleavage:

Distinct/Good
on {010}

Fracture:

Irregular/Uneven

Density:

5.1 g/cm3 (Calculated)

Chemistry of HueniteHide

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Mindat Formula:

Cu4(MoO4)3(OH)2

author's formula: Cu4Mo3O12(OH)2

Crystallography of HueniteHide

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Class (H-M):

3_m_ - Ditrigonal Pyramidal

Cell Parameters:

a = 7.653(5) Å, c = 9.411(6) Å

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

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of HueniteHide

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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. The Canadian Mineralogist: 57: 467-474.

Synonyms of HueniteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Fluorescence of HueniteHide

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Non-fluorescent (SWUV & LWUV)

Other InformationHide

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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 HueniteHide

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References for HueniteHide

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Reference List:

Vignola, Pietro, Rotiroti, Nicola, Gatta, G. Diego, Risplendente, Andrea, Hatert, Frédéric, Bersani, Danilo, Mattioli, Vittorio (2019) Huenite, Cu4Mo3O12(OH)2, a New Copper-molybdenum Oxy-hydroxide Mineral from the San Samuel Mine, Carrera Pinto, Cachiyuyo De Llampos District, CopiapÓ Province, Atacama Region, Chile. The Canadian Mineralogist, 57 (4) 467-474 doi:10.3749/canmin.1900011

Localities for HueniteHide

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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

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- 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.