Penzhinite Mineral Data

[Thumbnails] [Miniatures] [Cabinets] [About Us] [FAQ]
Welcome To Mason's Minerals
Your Source for Beautiful Minerals and Crystals
We offer a no-questioned-asked Satisfaction Guarantee

General Penzhinite Information

Chemical Formula:

(Ag,Cu)4Au(S,Se)4

Composition:

Molecular Weight = 759.28 gm

Copper 8.37 % Cu

Silver 42.62 % Ag

Gold 25.94 % Au

Selenium 10.40 % Se

Sulfur 12.67 % S

______

100.00 %

Empirical Formula:

Ag₃CuAuS₃Se

Environment:

In a near surface Au-Ag deposit.

IMA Status:

Approved IMA 1984

Locality:

Penzhina River, near the Kamchatka Peninsula, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Penzhinite + Pronunciation

Search for Penzhinite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Penzhinite Crystallography

Axial Ratios:

a:c = 1:1.2323

Cell Dimensions:

a = 13.779, c = 16.98, Z = 18; V = 2,791.93 Den(Calc)= 8.13

Crystal System:

Hexagonal - TrapezohedralH-M Symbol (6 2 2) Space Group: P 6₃22

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

By Intensity(I/I_o): 2.59(1), 2.14(0.9), 2.71(0.9),

Physical Properties of Penzhinite

Color:

Gray white, Steel gray.

Diaphaneity:

Opaque

Luster:

Metallic

Optical Properties of Penzhinite

Optical Data:

NCalc= 2.1 - from Gladstone-Dale relationship (KC = 0.1358) where Ncalc=Dcalc*KC+1

RL Anisotrophism:

Evident, in colors of creamy yellow and greenish gray.

RL Color:

Grayish white.

Calculated Properties of Penzhinite

Electron Density:

Bulk Density (Electron Density)=7.09 gm/cc
note: Specific Gravity of Penzhinite =8.13 gm/cc.

Fermion Index:

Fermion Index = 0.0088537668
Boson Index = 0.9911462332

Photoelectric:

PE_Penzhinite= 529.34 barns/electron
U=PE_Penzhinite x rElectron Density=3,752.22 barns/cc.

Radioactivity:

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

Penzhinite Classification

Dana Class:

02.16.18.01 (02)Sulfides - Including Selenides and Tellurides

(02.16)with miscellaneous formulae

(02.16.18)Dana Group

02.16.18.01 Penzhinite (Ag,Cu)4Au(S,Se)4 P 6₃22 6 2 2

Strunz Class:

02.BA.40d 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1)

02.BA -With Cu, Ag, Au

02.BA.40d Penzhinite (Ag,Cu)4Au(S,Se)4 P 6₃22 6 2 2

Other Penzhinite Information

References:

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

See Also:

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

Search for Penzhinite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Penzhinite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Penzhinite Mineral Data :

Ask about Penzhinite 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 Español

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

Penzhinite

(Ag,Cu)4Au(S,Se)4
Dana No: 02.16.18.01 Strunz No: 02.BA.40d
Locality:

Notes: