Hongshiite (original) (raw)

A valid IMA mineral species

Colour:

Grey, lead-gray, steel-gray, may be tarnished brown

Name:

Named for the type locality, Hongshi village.

This page provides mineralogical data about Hongshiite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:1929:9

49801f34-0918-4930-9382-33f12bacad4b

IMA Classification of HongshiiteHide

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Type description reference:

Yu, T.-H., Lin, S.-J., Chao, P., Fang, C.-S., Huang, C.-S. (1974): A preliminary study of some new minerals of the platinum group and another associated new one in platinum-bearing intrusion in a region in China. Acta Geologica Sinica, 2, 202-218.

Classification of HongshiiteHide

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1.AG.45

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
G : PGE-metal alloys

1.2.3.1

1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys

1.83

1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)

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 HongshiiteHide

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Colour:

Grey, lead-gray, steel-gray, may be tarnished brown

Hardness:

VHN50=204 - 227 kg/mm2 - Vickers

Cleavage:

Distinct/Good
On {1011}

Density:

15.71 g/cm3 (Measured) 15.63 g/cm3 (Calculated)

Optical Data of HongshiiteHide

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Anisotropism:

Weak to moderate, dull gray to dull reddish brown; coppery brown to bright blue.

Reflectivity:

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 70.8%.
R1 shown in black, R2 shown in red

Colour in reflected light:

Bright white with a slight brownish tint

Internal Reflections:

None

Chemistry of HongshiiteHide

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Crystallography of HongshiiteHide

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Cell Parameters:

a = 10.713 Å, c = 13.192 Å

Unit Cell V:

1,311.18 ų (Calculated from Unit Cell)

Twinning:

Yes. Twin plane might be {1121}

Comment:

Point Group: 32, 3m or 3 2/m.; Space Group: R32, R3m, or R3m

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of HongshiiteHide

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General Appearance of Type Material:

Granular-massive aggregates or irregular plates

Place of Conservation of Type Material:

Institute of Geology, Chinese Academy of Geological Sciences, Beijing, China

Associated Minerals at Type Locality:

Reference:

Yu, T.-H., Lin, S.-J., Chao, P., Fang, C.-S., Huang, C.-S. (1974): A preliminary study of some new minerals of the platinum group and another associated new one in platinum-bearing intrusion in a region in China. Acta Geologica Sinica, 2, 202-218.

Other Language Names for HongshiiteHide

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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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Other InformationHide

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Notes:

Insoluble in HCl and HNO3.

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 HongshiiteHide

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References for HongshiiteHide

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Reference List:

Yu, T.-H., Lin, S.-J., Chao, P., Fang, C.-S., Huang, C.-S. (1974): A preliminary study of some new minerals of the platinum group and another associated new one in platinum-bearing intrusion in a region in China. Acta Geologica Sinica, 2, 202-218.

Kwitko, R., Cabral, A.R., Lehmann, B., Laflamme, J.H.G., Cabri, L.J., Criddle, A.J., and Galbiatti, H.F. (2002) Hongshiite, PtCu, from itabirite-hosted Au-Pd-Pt mineralization (jacutinga), Itabira district, Minas Gerais, Brazil. Canadian Mineralogist: 40: 711-723.

Localities for HongshiiteHide

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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.