Plancheite Mineral Data

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


B and L Minerals
[New Items] [Specials] [Login] [Register] [Auction Items]
B & L Minerals, Fine Mineral specimens for sale for collectors of all levels


General Plancheite Information

Help on Chemical Formula: Chemical Formula: Cu8Si8O22(OH)4•(H2O)
Help on Composition: Composition: Molecular Weight = 1,171.08 gm
   Copper    43.41 %  Cu   54.34 % CuO
   Silicon   19.19 %  Si   41.05 % SiO2
   Hydrogen   0.52 %  H     4.62 % H2O
   Oxygen    36.89 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu8Si8O22(OH)4•(H2O)
Help on Environment: Environment: Secondary mineral in the oxidized zones of copper deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1908
Help on Locality: Locality: Tantara and Kambowe, Zaire. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after J. Planche who brought it from Africa.
Help on Name Pronunciation: Name Pronunciation: Plancheite + Pronunciation Say PLANCHEITE
Help on Synonym: Synonym: Bisbeeite
  ICSD 100073
  Katangaite
  Katangite
  PDF 29-576
 

Plancheite Image

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

Plancheite

Comments: Open vug lined with individual plancheite crystals to 3mm.
Location: Mashamba West Mine, Shaba, Democratic Republic of the Congo. Scale: 2.5 x 1.7 cm.
© John Veevaert

Plancheite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.946:1:0.2617
Help on Cell Dimensions: Cell Dimensions: a = 19.043, b = 20.129, c = 5.269, Z = 4; V = 2,019.69 Den(Calc)= 3.85
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pcnb
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.43(1), 3.32(0.7), 3.5(0.7),
Click Here for Large Plancheite 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


Evans H T , Mrose M E , American Mineralogist , 62 (1977) p.491-502, The crystal chemistry of the hydrous copper silicates, shattuckite and, plancheite, Note: sample is from Rioja, Argentina

 

Physical Properties of Plancheite

Help on Color: Color: Blue, Greenish blue.
Help on Density: Density: 3.6 - 3.8, Average = 3.7
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Unknown - Minerals too small to observe fractures.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Adamantine - Silky
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: light blue
 

Optical Properties of Plancheite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.059 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.096 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1749,KPDmeas= 0.182,KC= 0.1934
Ncalc = 1.7 - 1.74
Help on Optical Data: Optical Data: Biaxial (+), a=1.645, b=1.66, g=1.715, bire=0.0700
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): blue.
 

Calculated Properties of Plancheite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.58 gm/cc
note: Specific Gravity of Plancheite =3.70 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.009137694
Boson Index = 0.990862306
Help on Photoelectric: Photoelectric: PEPlancheite = 19.68 barns/electron
U=PEPlancheite x rElectron Density= 70.38 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Plancheite is Not Radioactive
 

Plancheite Classification
Help on Dana Class: Dana Class: 66.02.01.01 (66)Inosilicate Double-Width Unbranched Chains, W=2
  (66.02)with P=2 non-amphibole configuration
  (66.02.01)Plancheite Group
 
66.02.01.01 Plancheite Cu8Si8O22(OH)4•(H2O) Pcnb 2/m 2/m 2/m
 
66.02.01.02 Bigcreekite! BaSi2O5•4(H2O) P nma 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 09.DB.35 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DB -Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals
 
09.DB.35 Plancheite Cu8Si8O22(OH)4•(H2O) Pcnb 2/m 2/m 2/m
 

Other Plancheite Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Plancheite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - Philatelic Mineralogy
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST

Search for Plancheite using:

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

Visit our Advertisers for Plancheite :

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 Plancheite Mineral Data :

Ask about Plancheite 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 Plancheite Specimen Label here :

Plancheite

Cu8Si8O22(OH)4•(H2O)
Dana No: 66.02.01.01 Strunz No: 09.DB.35
Locality:

 

Notes: