Nealite-(H2O) Mineral Data

Nealite-(H2O) Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About



[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts]
See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM]
Mineral News was founded some twenty years ago and has developed a following of
avid mineral collectors seeking timely information about new finds and other items
of interest to the collector community. Articles are solicited from collector and scientific authors.


General Nealite-(H2O) Information

Help on Chemical Formula: Chemical Formula: Pb4Fe++(As+++O3)2Cl4•2(H2O)
Help on Composition: Composition: Molecular Weight = 1,308.33 gm
   Iron       4.27 %  Fe    5.49 % FeO
   Arsenic   11.45 %  As   15.12 % As2O3
   Hydrogen   0.31 %  H     2.75 % H2O
   Lead      63.35 %  Pb   68.24 % PbO
   Chlorine  10.84 %  Cl   10.84 % Cl
               -   %   Cl   -2.45 % -O=Cl2   
   Oxygen     9.78 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb4Fe2+(AsO3)2Cl4•2(H2O)
Help on Environment: Environment: Weathered lead slag.
Help on IMA Status: IMA Status: Not Approved IMA 1980
Help on Locality: Locality: Laurion, Greece. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Neal Yedlin (1908-1977), U. S. Mineralogist, who discovered the mineral.
Help on Name Pronunciation: Name Pronunciation: Nealite-(H2O) Say NEALITE-(H2O)
 

Nealite-(H2O) Image

Click Here for Larger Nealite-(H2O) Image in a New Browser Window Images:
Click Here for Larger Nealite-(H2O) Image

Nealite-(H2O)

Comments: Orange crystals of nealite-(H2O) on matrix.
Location: Laurium, Greece. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Nealite-(H2O) Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.6392:1:0.5454
Help on Cell Dimensions: Cell Dimensions: a = 6.548, b = 10.243, c = 5.587, Z = 1; alpha = 96.2°, beta = 89.6°, gamma = 97.7° V = 369.17 Den(Calc)= 5.88
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.54(1), 6.48(0.8), 4.24(0.7),2.78(0.6), 3.25(0.6), 10.09(0.6), 2.97(0.5), 3.92(0.5),
 

Physical Properties of Nealite-(H2O)

Help on Cleavage: Cleavage: None
Help on Color: Color: Bright orange.
Help on Density: Density: 5.89
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Luster: Luster: Adamantine
Help on Streak: Streak: pale orange
 

Optical Properties of Nealite-(H2O)

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.058 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.056 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1701,KPDmeas= 0.1698,KC= 0.1802
Ncalc = 2.06
Help on Optical Data: Optical Data: Biaxial (?), b=2
 

Calculated Properties of Nealite-(H2O)

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.00 gm/cc
note: Specific Gravity of Nealite-(H2O) =5.88 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.14
Boson Index = 0.86
Help on Photoelectric: Photoelectric: PENealite-(H2O) =1,155.13 barns/electron
U=PENealite-(H2O) x rElectron Density=5,772.92 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Nealite-(H2O) is Not Radioactive
 

Nealite-(H2O) Classification
Help on Dana Class: Dana Class: 46.01.06.01 (46)Basic or Halogen-Containing Antimonites, Arsenites and Phosphites
  (46.01)where (A B)m (XO3)p Zq
  (46.01.06)Dana Group
 
46.01.06.01 Nealite-(H2O)* Pb4Fe(AsO3)2Cl4•2(H2O) P1 1
Help on Strunz Class: Strunz Class: 04.JD.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.J - Arsenites, Antimonites, Bismuthites, Sulfites,
  04.JD -Arsenites, antimonites, bismuthites; with additional anions, with H2O
 
04.JD.05 Nealite Pb4Fe(AsO4)2Cl4 P1 1
 
04.JD.05 Nealite-(H2O)* Pb4Fe(AsO3)2Cl4•2(H2O) P1 1
 

Other Nealite-(H2O) Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Nealite-(H2O) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Nealite-(H2O) using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [bing] [GeoScienceWorld] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Nealite-(H2O) :

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

John Betts Fine Minerals

Lapis Mineral Journal

Mineral News

UV Tools

Wrights Rock Shop

Translate Nealite-(H2O) Mineral Data :

Ask about Nealite-(H2O) 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 Espaņol

Print or Cut-and-Paste your Nealite-(H2O) Specimen Label here :

Nealite-(H2O)

Pb4Fe++(As+++O3)2Cl4•2(H2O)
Dana No: 46.01.06.01 Strunz No: 04.JD.05
Locality:

 

Notes: