Ramsbeckite Mineral Data

Ramsbeckite Mineral Data
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General Ramsbeckite Information

Help on Chemical Formula: Chemical Formula: (Cu,Zn)15(SO4)4(OH)22•6(H2O)
Help on Composition: Composition: Molecular Weight = 1,826.61 gm
   Zinc      13.42 %  Zn   16.71 % ZnO
   Copper    39.14 %  Cu   48.99 % CuO
   Hydrogen   1.88 %  H    16.77 % H2O
   Sulfur     7.02 %  S    17.53 % SO3
   Oxygen    38.54 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu11.25Zn3.75(SO4)4(OH)22•6(H2O)
Help on Environment: Environment: Alteration product found in mine dumps.
Help on IMA Status: IMA Status: Approved IMA 1985
Help on Locality: Locality: Bastenberg mine, near Ramsbeck, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Ramsbeckite + Pronunciation Say RAMSBECKITE
Help on Synonym: Synonym: ICSD 63249
  PDF 39-365
 

Ramsbeckite Image

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Ramsbeckite

Comments: Green crystals of ramsbeckite on matrix.
Location: Gelbe Birke Mine, Schwarzenberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Ramsbeckite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0313:1:0.4559
Help on Cell Dimensions: Cell Dimensions: a = 16.066, b = 15.577, c = 7.102, Z = 2; beta = 90.2° V = 1,777.34 Den(Calc)= 3.41
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.09(1), 2.516(0.75), 2.694(0.3),
Click Here for Large Ramsbeckite Structure Window Crystal Structure:

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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
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Effenberger H , Neues Jahrbuch fur Mineralogie, Monatshefte , 1988 (1988) p.38-48, Ramsbeckite, (Cu,Zn)15(OH)22(SO4)4*6(H2O):, Revision of the chemical formula based on a structure determination, Locality: Bastenberg mine, Ramsbeck, Sauerland, Germany

 

Physical Properties of Ramsbeckite

Help on Cleavage: Cleavage: None
Help on Color: Color: Green.
Help on Density: Density: 3.39
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light green
 

Optical Properties of Ramsbeckite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.01 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1945,KPDmeas= 0.1957,KC= 0.1977
Ncalc = 1.67
Help on Optical Data: Optical Data: Biaxial (-), a=1.635, b=1.675, g=1.68, bire=0.0450, 2V(Calc)=38, 2V(Meas)=37.
 

Calculated Properties of Ramsbeckite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.30 gm/cc
note: Specific Gravity of Ramsbeckite =3.39 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0062184727
Boson Index = 0.9937815273
Help on Photoelectric: Photoelectric: PERamsbeckite = 24.02 barns/electron
U=PERamsbeckite x rElectron Density= 79.24 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ramsbeckite is Not Radioactive
 

Ramsbeckite Classification
Help on Dana Class: Dana Class: 31.04.09.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.04)where (A+ B++)4 (XO4) Zq·x(H2O)
  (31.04.09)Dana Group
 
31.04.09.01 Ramsbeckite (Cu,Zn)15(SO4)4(OH)22•6(H2O) P 21/a 2/m
Help on Strunz Class: Strunz Class: 07.DD.60 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DD -With only medium-sized cations; sheets of edge-sharing octahedra
 
07.DD.60 Ramsbeckite (Cu,Zn)15(SO4)4(OH)22•6(H2O) P 21/a 2/m
 

Other Ramsbeckite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Ramsbeckite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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

Ramsbeckite

(Cu,Zn)15(SO4)4(OH)22•6(H2O)
Dana No: 31.04.09.01 Strunz No: 07.DD.60
Locality:

 

Notes: