Hongshiite Mineral Data

General Hongshiite Information

Chemical Formula:

PtCu

Composition:

Molecular Weight = 258.63 gm

Copper 24.57 % Cu

Platinum 75.43 % Pt

______

100.00 %

Empirical Formula:

PtCu

Environment:

Apatite-bearing actinolized diopsidite.

IMA Status:

Not Approved IMA 1974

Locality:

Hong district, China. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Hongshiite + Pronunciation

Hongshiite Image

Images:

Hongshiite Palladodymite Ruthenium

Comments: Palladodymite (light gray, in two small grains), hongshiite (pale creamy grayish, tarnished brownish) in massive ruthenium. Polished section (from microprobe analysis) in reflected light.
Location: Miass River, Zlatoust, Ilmen Mts, Chelyabinsk Oblast', Urals Region, Russia. Scale: Picture size 0.09 mm.
© Thomas Witzke / Abraxas-Verlag

Hongshiite Crystallography

Axial Ratios:

a:c = 1:1.23301

Cell Dimensions:

a = 10.703, c = 13.197, Z = 48; V = 1,309.23 Den(Calc)= 15.74

Crystal System:

Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 1.91(1), 2.211(1), 4.52(1),

Physical Properties of Hongshiite

Cleavage:

None

Color:

Lead gray, Bronze.

Density:

15.63

Diaphaneity:

Opaque

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

5 - Apatite

Luster:

Metallic

Streak:

black

Optical Properties of Hongshiite

RL Anisotrophism:

Weak to moderate, dull gray to dull reddish brown.

RL Color:

Bright white with a slight brownish tint.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Hongshiite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
480 nm	58.90	56.70
546 nm	62.80	60.50
589 nm	65.80	63.80

**Calculated Relative Intensity Colors of Hongshiite in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	140%	160%
R₁
R₂

Calculated Properties of Hongshiite

Electron Density:

Bulk Density (Electron Density)=13.0 gm/cc
note: Specific Gravity of Hongshiite =15.7 gm/cc.

Fermion Index:

Fermion Index = 0.25
Boson Index = 0.75

Photoelectric:

PE_Hongshiite=1,193.30 barns/electron
U=PE_Hongshiite x rElectron Density=15541.65 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hongshiite is Not Radioactive

Hongshiite Classification

Dana Class:

01.02.03.01 (01)Native Elements

(01.02)with platinum group metals and alloys

(01.02.03)Dana Group

01.02.03.01 Hongshiite* PtCu R 3m 3 2/m

Strunz Class:

01.AG.45 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.A - Metals and Intermetallic Alloys

01.AG -PGE-metal alloys

01.AG.45 Hongshiite* PtCu R 3m 3 2/m

01.AG.45 Skaergaardite! CuPd P m3m 4/m 3 2/m

Other Hongshiite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Hongshiite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Ask about Hongshiite here :
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Print or Cut-and-Paste your Hongshiite Specimen Label here :

Hongshiite

PtCu
Dana No: 01.02.03.01 Strunz No: 01.AG.45
Locality:

Notes: