Callaghanite Mineral Data

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


General Callaghanite Information

Help on Chemical Formula: Chemical Formula: Cu2Mg2(CO3)(OH)6•2(H2O)
Help on Composition: Composition: Molecular Weight = 373.79 gm
   Magnesium  13.00 %  Mg   21.57 % MgO
   Copper     34.00 %  Cu   42.56 % CuO
   Hydrogen    2.70 %  H    24.10 % H2O
   Carbon      3.21 %  C    11.77 % CO2
   Oxygen     47.08 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu2Mg2(CO3)(OH)6•2(H2O)
Help on Environment: Environment: Disseminated in the contact zone between diorite and serpentinized dolostone.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1954
Help on Locality: Locality: Gabbs, Gabbs district, Nye Co., Nevada, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Eugene Callaghan (1904-1990), Director of the New Mexico Bureau of Mines, Socorro, New Mexico, USA.
Help on Synonym: Synonym: ICSD 28268
  PDF 11-332
 

Callaghanite Image

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

Callaghanite

Comments: Blue crystals of callaghanite on matrix.
Location: Gabbs, Nevada, USA. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Callaghanite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.8525:1:0.6983
Help on Cell Dimensions: Cell Dimensions: a = 10.06, b = 11.8, c = 8.24, Z = 4; beta = 107.3° V = 933.90 Den(Calc)= 2.66
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 6.17(1), 7.45(1), 3.87(0.9),
Click Here for Large Callaghanite 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


Brunton G D , American Mineralogist , 58 (1973) p.965-965, Refinement of the callaghanite structure

 

Physical Properties of Callaghanite

Help on Cleavage: Cleavage: {111} Perfect, {111} Perfect
Help on Color: Color: Azure, Violet blue.
Help on Density: Density: 2.71
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Hardness: Hardness: 3-3.5 - Calcite-Copper Penny
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Callaghanite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.047 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.067 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2371,KPDmeas= 0.2327,KC= 0.2223
Ncalc = 1.59 - 1.6
Help on Optical Data: Optical Data: Biaxial (-), a=1.559, b=1.653, g=1.68, bire=0.1210, 2V(Calc)=52, 2V(Meas)=55.
 

Calculated Properties of Callaghanite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.70 gm/cc
note: Specific Gravity of Callaghanite =2.71 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PECallaghanite = 14.80 barns/electron
U=PECallaghanite x rElectron Density= 39.92 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Callaghanite is Not Radioactive
 

Callaghanite Classification
Help on Dana Class: Dana Class: 16b.05.01.01 (16b)Carbonates - Hydroxyl or Halogen
  (16b.05)with miscellaneous formulae
  (16b.05.01)Dana Group
 
16b.05.01.01 Callaghanite Cu2Mg2(CO3)(OH)6•2(H2O) C 2/c 2/m
Help on Strunz Class: Strunz Class: 05.DA.25 05 - CARBONATES (NITRATES)
  05.D - Carbonates with Additional Anions, with H2O
  05.DA -With medium-sized cations
 
05.DA.25 Callaghanite Cu2Mg2(CO3)(OH)6•2(H2O) C 2/c 2/m
 

Other Callaghanite Information
Help on References: References: NAME( AntBidBlaNic3) 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 Callaghanite :
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 - HyperPhysics
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

Search for Callaghanite using:

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

Visit our Advertisers for Callaghanite :

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

Ask about Callaghanite 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 Callaghanite Specimen Label here :

Callaghanite

Cu2Mg2(CO3)(OH)6•2(H2O)
Dana No: 16b.05.01.01 Strunz No: 05.DA.25
Locality:

 

Notes: