Hollingworthite Mineral Data (original) (raw)

General Hollingworthite Information

Help on Chemical Formula: Chemical Formula:

(Rh,Pt,Pd)AsS

Help on Composition: Composition:

Molecular Weight = 237.90 gm

Arsenic 31.49 % As

Palladium 4.47 % Pd

Platinum 24.60 % Pt

Rhodium 25.95 % Rh

Sulfur 13.48 % S

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Rh0.6Pt0.3Pd0.1AsS

Help on Environment: Environment:

In a dunite pipe deposit and platinum deposits in layered ultramafic intrusives.

Help on IMA Status: IMA Status:

Approved IMA 1965

Help on Locality: Locality:

Driekop and Onverwacht mines, Transvaal, South Africa. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

For Professor Sidney Ewart Hollingworth (1899-1966).

Help on Name Pronunciation: Name Pronunciation:

Hollingworthite + Pronunciation Say HOLLINGWORTHITE

Hollingworthite Image

Click Here for Larger Hollingworthite Image in a New Browser Window Images:

Click Here for Larger Hollingworthite Image Hollingworthite Laurite Comments: Gray grain of hollingworthite (in the center of the picture) with very slightly darker gray laurite (at the right margin). Polished section (from microprobe analysis). Location: Konder Mine, Konder alkaline-ultrabasic massif, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia.Scale: Picture size 0.1 mm. © Thomas Witzke / Abraxas-Verlag

Click Here for Larger Hollingworthite Image in a New Browser Window Images:

Click Here for Larger Hollingworthite Image Hollingworthite Laurite Comments: Gray laurite with two smaller grains of hollingworthite (left and right from the laurite, very slightly lighter gray). Polished section (from microprobe analysis) in reflected light. Location: Konder Mine, Konder alkaline-ultrabasic massif, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia.Scale: Picture size 0.15 mm. © Thomas Witzke / Abraxas-Verlag

Hollingworthite Crystallography

Help on Cell Dimensions: Cell Dimensions:

a = 5.769, Z = 4; V = 192.00 Den(Calc)= 8.23

Help on Crystal System: Crystal System:

Isometric - DiploidalH-M Symbol (2/m 3) Space Group: P a3

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 1.74(1), 2.87(1), 3.31(1),

Click Here for Large Hollingworthite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

| | Foecker A J , Jeitschko W , Journal of Solid State Chemistry , 162 (2001) p.69-78, The atomic order of the pnictogen and chalcogen atoms in equiatomic ternary | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Physical Properties of Hollingworthite

Help on Color: Color:

Gray.

Help on Density: Density:

7.91

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Hardness: Hardness:

6-6.5 - Orthoclase-Pyrite

Help on Luster: Luster:

Metallic

Optical Properties of Hollingworthite

Help on RL Color: RL Color:

Medium gray, slightly bluish in oil.

Help on Reflectivity Reflectivity

Standardized Intensity (100%) Reflection Spectra of Hollingworthite in Air

λ R ∑ R(λ)
420 nm 50.00
440 nm 51.30
460 nm 51.90
480 nm 51.90
500 nm 51.60
520 nm 51.30
540 nm 50.80
560 nm 50.20
580 nm 49.70
600 nm 49.20
620 nm 48.50
640 nm 47.80
660 nm 47.20
680 nm 46.40
700 nm 45.60

Calculated Relative Intensity Colors of Hollingworthite in Air

RelativeIntensity 0% 20% 40% 60% 80% 100% 120% 140% 160% 180% 190%
R

Calculated Properties of Hollingworthite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=7.20 gm/cc
note: Specific Gravity of Hollingworthite =8.23 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.09
Boson Index = 0.91

Help on Photoelectric: Photoelectric:

PEHollingworthite = 457.29 barns/electron
U=PEHollingworthite x rElectron Density=3,290.56 barns/cc.

Help on Radioactivity: Radioactivity:

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

Hollingworthite Classification

Help on Dana Class: Dana Class:

02.12.03.08 (02)Sulfides - Including Selenides and Tellurides

(02.12)where Am Bn Xp, with (m+n):p=1:2

(02.12.03)Cobaltite Group (Cubic or pseudocubic crystals)

02.12.03.01 Cobaltite CoAsS P ca21 mm2

02.12.03.02 Gersdorffite NiAsS P 213 2 3

02.12.03.03 Ullmannite NiSbS P 213 2 3

02.12.03.04 Willyamite (Co,Ni)SbS P 213 2 3

02.12.03.05 Tolovkite IrSbS P 213 2 3

02.12.03.06 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3

02.12.03.07 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3

02.12.03.08 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3

02.12.03.09 Jolliffeite (Ni,Co)AsSe P a3 2/m 3

02.12.03.10 Padmaite PdBiSe P 213 2 3

02.12.03.11 Michenerite (Pd,Pt)BiTe P 213 2 3

02.12.03.12 Maslovite PtBiTe P 213 2 3

02.12.03.13 Testibiopalladite PdTe(Sb,Te) P 213 2 3

02.12.03.14 Changchengite! IrBiS P 213 2 3

02.12.03.15 Milotaite! PdSbSe P 21/3 2 3

02.12.03.16 Kalungaite! PdAsSe Pa3 2/m 3

Help on Strunz Class: Strunz Class:

02.EB.25 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.E - Metal Sulfides, M:S � 1:2

02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc.

02.EB.25 Cobaltite CoAsS P ca21 mm2

02.EB.25 Changchengite! IrBiS P 213 2 3

02.EB.25 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3

02.EB.25 Gersdorffite NiAsS P 213 2 3

02.EB.25 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3

02.EB.25 Jolliffeite (Ni,Co)AsSe P a3 2/m 3

02.EB.25 Krutovite NiAs2 P a3 2/m 3

02.EB.25 Michenerite (Pd,Pt)BiTe P 213 2 3

02.EB.25 Maslovite PtBiTe P 213 2 3

02.EB.25 Mayingite IrBiTe P a3 2/m 3

02.EB.25 Padmaite PdBiSe P 213 2 3

02.EB.25 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3

02.EB.25 Ullmannite NiSbS P 213 2 3

02.EB.25 Tolovkite IrSbS P 213 2 3

02.EB.25 Testibiopalladite PdTe(Sb,Te) P 213 2 3

02.EB.25 Willyamite (Co,Ni)SbS P 213 2 3

02.EB.25 Kalungaite! PdAsSe Pa3 2/m 3

02.EB.25 Milotaite! PdSbSe P 21/3 2 3

Other Hollingworthite Information

Help on References: References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

Help on See Also: See Also:

Links to other databases for Hollingworthite :
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
15 - WWW-MINCRYST

Search for Hollingworthite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Hollingworthite :

A Bijoux Google Search for Hollingworthite
Adam's Minerals Google Search for Hollingworthite
Cape Minerals Google Search for Hollingworthite
Dakota Matrix Minerals Google Search for Hollingworthite
Excalibur Mineral Corp. Google Search for Hollingworthite
Exceptional Minerals Google Search for Hollingworthite
John Betts Fine Minerals Search for Hollingworthite
McDougall Minerals Google Search for Hollingworthite
Mineral News Website Link
Rock and Mineral Shows Google Search for Hollingworthite
Weinrich Minerals, Inc. Google Search for Hollingworthite

Ask about Hollingworthite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol

Print or Cut-and-Paste your Hollingworthite Specimen Label here :

Hollingworthite

(Rh,Pt,Pd)AsS
Dana No: 02.12.03.08 Strunz No: 02.EB.25
Locality:

Notes: