Bechererite Mineral Data + Say BECHERERITE

General Bechererite Information

Help on Chemical  Formula: Chemical Formula: (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2
Help on Composition: Composition: Molecular Weight = 933.60 gm
   Zinc      45.53 %  Zn   56.67 % ZnO
   Copper    10.21 %  Cu   12.78 % CuO
   Silicon    1.50 %  Si    3.22 % SiO2
   Hydrogen   1.62 %  H    14.47 % H2O
   Sulfur     5.15 %  S    10.29 % SO2
   Oxygen    35.99 %  O
            ______        ______ 
            100.00 %       97.43 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn4.5Cu1.5Zn2(OH)132(S0.75)2(Si0.25)2(O3)2(OH)
Help on Environment: Environment: Alteration product of copper and zinc orebodies.
Help on IMA Status: IMA Status: Approved IMA 1994 (Dana # Added)
Help on Locality: Locality: The dump of the Tonopah-Belmont mine, Osborne silver-gold district, Maricopa County, Arizona USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Dr. Karl Becherer (1926-) of the University of Vienna, in recognition of his contributions to the mineralogy of Spangolite from Lavrion.
Help on Synonym: Synonym: ICSD 81354
  IMA1994-005
  PDF 46-1438
 

Search for Bechererite 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.

  

Bechererite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.88632
Help on Cell Dimensions: Cell Dimensions: a = 8.322, c = 7.376, Z = 1; V = 442.39 Den(Calc)= 3.50
Help on Crystal System: Crystal System: Trigonal - PyramidalH-M Symbol (3) Space Group: P 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.37(1), 2.556(0.5), 3.282(0.3),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: [ 2 4 1] [ 1 2 0] [ 0 0 1]

Warning: this large pop-up is very compute intensive and may not work well with some computers.

Click Here for Large Bechererite 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


Giester G , Rieck B , American Mineralogist , 81 (1996) p.244-248, Bechererite, (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2, a novel mineral species from the, Tonopah-Belmont mine, Arizonia, Note: U(1,2) changed for Si, S, O1, OH1 to match symmetry constraints.

View Additional jPOWD Structure files for Bechererite
[1]
 

Physical Properties of Bechererite

Help on Cleavage: Cleavage: [001] Perfect
Help on Color: Color: Light green.
Help on Density: Density: 3.45 - 3.49, Average = 3.47
Help on Diaphaniety: Diaphaniety: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Bechererite

Help on Dichroism (e): Dichroism (e): colorless.
Help on Dichroism (w): Dichroism (w): colorless.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.023 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.032 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.188,KPDmeas= 0.1896,KC= 0.1941
Help on Optical Data: Optical Data: Uniaxial (-), e=1.611, w=1.705, bire=0.0940.
 

Calculated Properties of Bechererite

Help on Electron Density: Electron Density:

relectron=3.36 gm/cc
note: rBechererite =3.47 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.01992
Boson Index = 0.98008
Help on Photoelectric: Photoelectric:

PEBechererite = 27.31 barns/electron
U=PEBechererite x relectron= 91.87 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Bechererite is Not Radioactive

 

Bechererite Classification

Help on  Dana Class: Dana Class: 31.1.6.2 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.1)where (A+ B++)m (XO4)p Zq·x(H2O), where m:p>6:1
  (31.1.6)Dana Group
 
31.1.6.1 Schulenbergite (Cu,Zn)7(SO4,CO3)2(OH)10·3(H2O) P 3 or P 3- Trig
 
31.1.6.2 Bechererite ! (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2 P 3 3
Help on  Strunz Class: Strunz Class: VI/D.08-05 VI - Sulfates,Chromates,Molybdates and Tungstates
  VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium size
  VI/D.08 - Spangolite - Glaucocerinite series
 
VI/D.08-05 Bechererite (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2 P 3 3
 
VI/D.08-10 Spangolite Cu6Al(SO4)(OH)12Cl·3(H2O) P 31c 3m
 
VI/D.08-20 Cyanotrichite Cu4Al2(SO4)(OH)12·2(H2O) Unk Ortho
 
VI/D.08-30 Carbonate-cyanotrichite Cu4Al2(CO3,SO4)(OH)12·2(H2O) Unk Ortho
 
VI/D.08-35 Camerolaite Cu4Al2[HSbO4,SO4](OH)10(CO3)·2(H2O) P 21 ? 2
 
VI/D.08-40 Woodwardite Cu4Al2(SO4)(OH)12·2-4(H2O) Unk Hex
 
VI/D.08-42 Hydrowoodwardite! Cu1-xAlx(OH)2(SO4)x/2·n(H2O)with0<x<0.67andn>3x/2 R 3m 3 2/m
 
VI/D.08-45 Zincowoodwardite! [Zn1-xAlx(OH)2][(SO4)x/2(H2O)n] P 3- or R 3m 3
 
VI/D.08-45* Zincowoodwardite-1T! [Zn1BxAlx(OH)2][(SO4)x/2·n(H2O)],x=0.33,n.0.96 P 3 3
 
VI/D.08-45** Zincowoodwardite-3R! [Zn1BxAlx(OH)2][(SO4)x/2·n(H2O)],0.32<x<0.50,n=0.59 R 3m 3 2/m
 
VI/D.08-50 Chalcoalumite CuAl4(SO4)(OH)12·3(H2O) P 21 2
 
VI/D.08-60 Nickelalumite (Ni,Cu)Al4[(SO4),(NO3)2](OH)12·3(H2O) P 21 2
 
VI/D.08-70 Mbobomkulite (Ni,Cu)Al4(NO3,SO4)2(OH)12·3(H2O) P 21 2
 
VI/D.08-80 Hydrombobomkulite (Ni,Cu)Al4(NO3,SO4)2(OH)12·14(H2O) Unk Mono
 
VI/D.08-90 Carrboydite (Ni,Cu)14Al9(SO4,CO3)6(OH)43·7(H2O) Unk Hex
 
VI/D.08-100 Zincaluminite Zn6Al6(SO4)2(OH)26·5(H2O) Unk Hex
 
VI/D.08-110 Glaucocerinite (Zn,Cu)5Al3(SO4)1.5(OH)16·9(H2O) Unk (HEX-R) Trig
 

Other Bechererite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,1996) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Bechererite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST

Search for Bechererite using:

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

Visit our Advertisers for Bechererite :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Bechererite Mineral Data :

Ask about Bechererite 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 Español

Print or Cut-and-Paste your Bechererite Specimen Label here :

Bechererite

(Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2
Dana No: 31.1.6.2 Strunz No: VI/D.08-05
Locality:

 

Notes:

 

 
   
 
Go To Webmineral Home Crystallography X-Ray D-Spacing Table Chemical Composition
Dana Classification Strunz Classification Table of Mineral Properties Alphabetical Listing of Minerals
Search Webmineral Photo Gallery of Mineral Images Help Files Links