Heliophyllite Mineral Data

Heliophyllite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About



[New Updates] [Gallery 1] [Gallery 2] [Gallery 3] [Rock Shop Gallery]
Serving the mineral collector and educator community since 1970
Over 900,000 mineral specimens in stock
New minerals acquired weekly - Wright's Rock Shop


General Heliophyllite Information

Help on Chemical Formula: Chemical Formula: Pb6As2O7Cl4
Help on Composition: Composition: Molecular Weight = 1,646.85 gm
   Arsenic    9.10 %  As   12.98 % AsO2
   Lead      75.49 %  Pb   81.32 % PbO
   Chlorine   8.61 %  Cl    8.61 % Cl
               -   %   Cl   -1.94 % -O=Cl2   
   Oxygen     6.80 %  O
            ______        ______ 
            100.00 %      100.97 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb6As2O7Cl4
Help on Environment: Environment: Secondary mineral.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1888
Help on Locality: Locality: Langban, Harstig, and Jakobsverg mines, Varmland Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for "sun" and "leaf', in reference to its color and structure.
Help on Name Pronunciation: Name Pronunciation: Heliophyllite + Pronunciation Say HELIOPHYLLITE
 

Search for Heliophyllite Images

Click Here To Search 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.
  

Heliophyllite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0037:1:2.3722
Help on Cell Dimensions: Cell Dimensions: a = 10.823, b = 10.783, c = 25.58, Z = 8; V = 2,985.30 Den(Calc)= 7.33
Help on Crystal System: Crystal System: OrthorhombicSpace Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.84(1), 2.7(0.4), 3.66(0.35),
 

Physical Properties of Heliophyllite

Help on Cleavage: Cleavage: {011} Good
Help on Color: Color: Greenish yellow, Yellow.
Help on Density: Density: 6.89
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: light yellow
 

Optical Properties of Heliophyllite

Help on Optical Data: Optical Data: Biaxial (-), 2V(Meas)=large. Dispersion r > v strong.
  NCalc= 1.99 - from Gladstone-Dale relationship (KC = 0.1354) where Ncalc=Dcalc*KC+1
NCalc= 1.93 - from Gladstone-Dale relationship (KC = 0.1354) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Heliophyllite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.07 gm/cc
note: Specific Gravity of Heliophyllite =7.33 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.16
Boson Index = 0.84
Help on Photoelectric: Photoelectric: PEHeliophyllite =1,406.90 barns/electron
U=PEHeliophyllite x rElectron Density=8,541.36 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Heliophyllite is Not Radioactive
 

Heliophyllite Classification
Help on Dana Class: Dana Class: 46.02.02.01 (46)Basic or Halogen-Containing Antimonites, Arsenites and Phosphites
  (46.02)with miscellaneous formulae
  (46.02.02)Dana Group
 
46.02.02.01 Heliophyllite Pb6As2O7Cl4 Unk Ortho
Help on Strunz Class: Strunz Class: 03.DC.65 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DC -With Pb (As,Sb,Bi), without Cu
 
03.DC.65 Ecdemite Pb6As2O7Cl4 Unk Tetra
 
03.DC.65 Heliophyllite Pb6As2O7Cl4 Unk Ortho
 

Other Heliophyllite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Heliophyllite :
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 Heliophyllite using:

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

Visit our Advertisers for Heliophyllite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Heliophyllite Mineral Data :

Ask about Heliophyllite 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 Heliophyllite Specimen Label here :

Heliophyllite

Pb6As2O7Cl4
Dana No: 46.02.02.01 Strunz No: 03.DC.65
Locality:

 

Notes: