Platynite Mineral Data (original) (raw)

General Platynite Information

Help on Chemical Formula: Chemical Formula:

(Bi,Pb)3(Se,S)4

Help on Composition: Composition:

Molecular Weight = 894.11 gm

Bismuth 46.75 % Bi

Lead 23.17 % Pb

Selenium 26.49 % Se

Sulfur 3.59 % S

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Bi2PbSe3S

Help on Environment: Environment:

Discredited as being a mixture of laitakarite and selenian galena.

Help on IMA Status: IMA Status:

Discredited IMA 1999 - Valid Species (Pre-IMA) 1910

Help on Locality: Locality:

Falun, Dalecarlia, Sweden. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named in 1910 from the Greek "to broaden", in allusion to its platy habit.

Help on Name Pronunciation: Name Pronunciation:

Platynite + Pronunciation Say PLATYNITE

Help on Synonym: Synonym:

Discredited

IMA1999-A

Platynite Image

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Platynite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:2.44994

Help on Cell Dimensions: Cell Dimensions:

a = 8.49, c = 20.8, Z = 8; V = 1,298.40 Den(Calc)= 9.15

Help on Crystal System: 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/Io): 3.965(1), 2.971(0.4), 5.45(0.2),

Physical Properties of Platynite

Help on Cleavage: Cleavage:

{001} Good, {010} Good, {100} Good

Help on Color: Color:

Gray, Black, White.

Help on Density: Density:

7.98

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Habit: Habit:

Platy - Sheet forms (e.g. micas).

Help on Hardness: Hardness:

2-3 - Gypsum-Calcite

Help on Luster: Luster:

Metallic

Help on Streak: Streak:

shining black

Optical Properties of Platynite

Help on RL Anisotrophism: RL Anisotrophism:

Strong.

Calculated Properties of Platynite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=7.49 gm/cc
note: Specific Gravity of Platynite =9.15 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.07
Boson Index = 0.93

Help on Photoelectric: Photoelectric:

PEPlatynite =1,376.33 barns/electron
U=PEPlatynite x rElectron Density=10310.12 barns/cc.

Help on Radioactivity: Radioactivity:

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

Platynite Classification

Help on Dana Class: Dana Class:

02.08.21.01 (02)Sulfides - Including Selenides and Tellurides

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

(02.08.21)Dana Group

02.08.21.01 Platynite? (Bi,Pb)3(Se,S)4 R 3m 3 2/m

Help on Strunz Class: Strunz Class:

02.DC.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.D - Metal Sulfides, M:S = 3:4 and 2:3

02.DC -Variable M:S

02.DC.05 Platynite? (Bi,Pb)3(Se,S)4 R 3m 3 2/m

Other Platynite Information

Help on References: References:

NAME( CanMin, 10/99) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

Help on See Also: See Also:

Links to other databases for Platynite :
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 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Platynite

(Bi,Pb)3(Se,S)4
Dana No: 02.08.21.01 Strunz No: 02.DC.05
Locality:

Notes: