Rappoldite Mineral Data

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

Advertisment
A Bijoux.com is an online store specialized in the sale on the internet of precious stones , gems , minerals and jewels for individuals and professionals
 Your premier supplier of quality mineral specimens from Southern Africa and the world at large
 Adamsminerals.com- Online mineral store front for mineral collectors
 McDougall Minerals sells high-quality mineral specimens from all over the world to collectors of all levels, from beginners to connoisseurs

General Rappoldite Information

Help on Chemical Formula: Chemical Formula: Pb(Co,Ni,Zn,)2(AsO4)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 641.37 gm
   Zinc       4.08 %  Zn    5.08 % ZnO
   Cobalt     9.19 %  Co   11.68 % CoO
   Nickel     5.49 %  Ni    6.99 % NiO
   Arsenic   23.36 %  As   35.84 % As2O5
   Hydrogen   0.63 %  H     5.62 % H2O
   Lead      32.31 %  Pb   34.80 % PbO
   Oxygen    24.95 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: PbCoNi0.6Zn0.4(AsO4)2•2(H2O)
Help on Environment: Environment: Co-dominant analogue of helmutwinklerite associated with cobaltlotharmeyerite as overgrowths on quartz.
Help on IMA Status: IMA Status: Approved IMA 1998 (Dana # Added)
Help on Locality: Locality: Dump material from the Rappold mine near Schneeberg, Saxony, Germay. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: IMA1998-015
 

Rappoldite Image

Click Here for Larger Rappoldite Image in a New Browser Window Images:
Click Here for Larger Rappoldite Image

Rappoldite

Comments: Small brown crystals of rappoldite.
Location: Rappold, Schneeberg, Erzgebirge, Germany. Scale: Box Size 1.25 x 1.25 inches.
© Sonke Stolze / Systematic Minerals

Rappoldite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0608:1:0.7198
Help on Cell Dimensions: Cell Dimensions: a = 11.19, b = 10.548, c = 7.593, Z = 4; alpha = 100.38°, beta = 109.59°, gamma = 98.96° V = 820.39 Den(Calc)= 5.19
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): 3.256(1)(022,212), 4.67(0.97)(211,021), 3.072(0.56)(211), 2.568(0.46)(022,402,2322.89(0.4)(231,231), 1.731(0.38)
Click Here for Large Rappoldite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Effenberger H , Krause W , Bernhardt H J , Martin M , Mineralogical Magazine , 64 (2000) p.1109-1126, On the symmetry of tsumcorite group minerals based on the new species, rappoldite and zincgartrellite, Locality: Rappold mine, near Schneeberg, Saxony, Germany

 

Physical Properties of Rappoldite

Help on Cleavage: Cleavage: None
Help on Color: Color: Red, Reddish brown.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Rosette - Bundled tabular aggregates resembling rose flower petals.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light yellow brown
 

Optical Properties of Rappoldite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= -0.006 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1657,KC= 0.1647
Ncalc = 1.87
Help on Optical Data: Optical Data: Biaxial (+), a=1.85, b=1.87, g=1.9, bire=0.0500, 2V(Calc)=80, 2V(Meas)=85. Dispersion r > v distinct.
 

Calculated Properties of Rappoldite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.73 gm/cc
note: Specific Gravity of Rappoldite =5.27 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.07
Boson Index = 0.93
Help on Photoelectric: Photoelectric: PERappoldite = 577.36 barns/electron
U=PERappoldite x rElectron Density=2,730.65 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Rappoldite is Not Radioactive
 

Rappoldite Classification
Help on Dana Class: Dana Class: 40.02.09.05 (40)Hydrated Phosphates, etc
  (40.02)where A++ (B++)2 (XO4) · x(H2O)
  (40.02.09)Helmutwinklerite Subgroup
 
40.02.09.01 Tsumcorite PbZnFe(AsO4)2•(H2O) C 2/m 2/m
 
40.02.09.02 Helmutwinklerite PbZn2(AsO4)2•2(H2O) P1 1
 
40.02.09.03 Thometzekite Pb(Cu,Zn)2(AsO4)2•2(H2O) C 2/m 2/m
 
40.02.09.04 Mawbyite Pb(FeZn)2(AsO4)2(OH,H2O)2 C 2/m 2/m
 
40.02.09.05 Rappoldite! Pb(Co,Ni,Zn,)2(AsO4)2•2(H2O) P1 1
 
40.02.09.06 Schneebergite! Bi(Co,Ni)2(AsO4)2(OH,H2O)2 C 2/m 2/m
 
40.02.09.07 Nickelschneebergite! Bi(Ni,Co)2(AsO4)2(OH,H2O)2 C 2/m 2/m
 
40.02.09.08 Cobalttsumcorite! Pb(Co,Fe)2(AsO4)2(OH,H2O)2 C 2/m 2/m
Help on Strunz Class: Strunz Class: 08.CG.20 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CG -With large and medium-sized cations, RO4:H2O = 1:1
 
08.CG.20 Gartrellite Pb(Cu,Fe)2(AsO4,SO4)2(CO3,H2O)0.7 P1,P 1 Tri
 
08.CG.20 Helmutwinklerite PbZn2(AsO4)2•2(H2O) P1 1
 
08.CG.20 Phosphogartrellite! PbCuFe(PO4)2(OH,H2O)2 P1 1
 
08.CG.20 Zincgartrellite! Pb(Zn,Fe,Cu)2(AsO4)2(OH,H2O)2 P1 1
 
08.CG.20 Rappoldite! Pb(Co,Ni,Zn,)2(AsO4)2•2(H2O) P1 1
 
08.CG.20 Lukrahnite! Ca(Cu,Zn)(Fe,Zn)(AsO4)2(OH,H2O)2 P1 1
 

Other Rappoldite Information
Help on References: References: NAME( AmMin, v 86, p 940) PHYS. PROP.(AmMin, v 86, p 940) OPTIC PROP.(AmMin, v 86, p 940)
Help on See Also: See Also: Links to other databases for Rappoldite :
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 Rappoldite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Rappoldite :

A Bijoux Google Search for Rappoldite
Adam's Minerals Google Search for Rappoldite
Cape Minerals Google Search for Rappoldite
Dakota Matrix Minerals Google Search for Rappoldite
Excalibur Mineral Corp. Google Search for Rappoldite
Exceptional Minerals Google Search for Rappoldite
John Betts Fine Minerals Search for Rappoldite
McDougall Minerals Google Search for Rappoldite
Mineral News Website Link
Rock and Mineral Shows Google Search for Rappoldite
Weinrich Minerals, Inc. Google Search for Rappoldite

Ask about Rappoldite 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 Rappoldite Specimen Label here :

Rappoldite

Pb(Co,Ni,Zn,)2(AsO4)2•2(H2O)
Dana No: 40.02.09.05 Strunz No: 08.CG.20
Locality:

 

Notes: