Mineralogy Database

Yedlinite Mineral Data

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General Yedlinite Information

Help on Chemical  Formula: Chemical Formula: Pb6CrCl6(O,OH)8
Help on Composition: Composition: Molecular Weight = 1,637.92 gm
   Chromium   3.17 %  Cr    5.13 % CrO2
   Hydrogen   0.12 %  H     1.10 % H2O
   Lead      75.90 %  Pb   81.76 % PbO
   Chlorine  12.99 %  Cl   12.99 % Cl
               -   %   Cl   -2.93 % -O=Cl2   
   Oxygen     7.81 %  O
            ______        ______ 
            100.00 %       98.05 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb6CrCl6O6(OH)2
Help on IMA Status: IMA Status: Approved IMA 1974
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named of Leo Neal Yedlin (1908-1977), micromount mineral collector of New Haven, Connecticut, USA.
Help on Name Pronunciation: Name Pronunciation: Yedlinite + Pronunciation Say YEDLINITE
Help on Synonym: Synonym: ICSD 6075
  PDF 27-269

Yedlinite Image

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  Yedlinite   Diaboleite

Comments: Minute cranberry-colored rounded yedlinite crystal with blue diaboleite on yellow-brown wulfenite.
Location: Mammoth Mine, Tiger, Pinal County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Yedlinite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.76321
Help on Cell Dimensions: Cell Dimensions: a = 12.868, c = 9.821, Z = 3; V = 1,408.34 Den(Calc)= 5.79
Help on Crystal System: Crystal System: Trigonal - Rhombohedral H-M Symbol ( 3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.952(1), 2.622(0.68), 4.506(0.65),

Physical Properties of Yedlinite

Help on Cleavage: Cleavage: {1120} Distinct
Help on Color: Color: Red violet.
Help on Density: Density: 5.85
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Yedlinite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.074 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.086 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1886,KPDmeas= 0.1867,KC= 0.1737
Ncalc = 2.01 - 2.02
Help on Optical Data: Optical Data: Uniaxial (-), e=2.059, w=2.125, bire=0.0660.

Calculated Properties of Yedlinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.89 gm/cc
note: Specific Gravity of Yedlinite =5.85 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.17
Boson Index = 0.83
Help on Photoelectric: Photoelectric: PEYedlinite =1,396.88 barns/electron
U=PEYedlinite x rElectron Density=6,825.05 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Yedlinite is Not Radioactive

Yedlinite Classification

Help on  Dana Class: Dana Class: (10)Oxyhalides and Hydroxyhalides
  (10.06)where Am Bn (O,OH)p Xq
  (10.06.03)Dana Group Yedlinite Pb6CrCl6(O,OH)8 R 3 3
Help on  Strunz Class: Strunz Class: 03.DB.50 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DB -With Pb, Cu, etc.
03.DB.50 Yedlinite Pb6CrCl6(O,OH)8 R 3 3

Other Yedlinite Information

Help on References: References: PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Yedlinite :
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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Dana No: Strunz No: 03.DB.50





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