Chalcoalumite Mineral Data

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


AA Mineral Sepcimens
[What's New] [Mineral Galleries] [About Us] [Contacts] [Login]
At AA Mineral Specimens, we source quality Mineral Specimens, Fossils, Gemstones,
Decorative Stones, Lapidary Material and Specimen Sets world-wide


General Chalcoalumite Information

Help on Chemical Formula: Chemical Formula: CuAl4(SO4)(OH)12•3(H2O)
Help on Composition: Composition: Molecular Weight = 525.67 gm
   Aluminum  20.53 %  Al   38.79 % Al2O3
   Copper    12.09 %  Cu   13.61 % Cu2O
   Hydrogen   3.45 %  H    30.84 % H2O
   Sulfur     6.10 %  S    15.23 % SO3
   Oxygen    57.83 %  O
            ______        ______ 
            100.00 %       98.48 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CuAl4(SO4)(OH)12•3(H2O)
Help on Environment: Environment: Secondary mineral in the oxidized portions of copper deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1925
Help on Locality: Locality: Bisbee, Cochise Co., and in the Grandview mine, Grand Canyon, Coconino Co., Arizona. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek chalkos, for copper and Latin alum, for aluminum sulfate.
Help on Name Pronunciation: Name Pronunciation: Chalcoalumite Say CHALCOALUMITE
 

Chalcoalumite Image

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

Chalcoalumite

Comments: Pale bluish stellate twins of chalcoalumite on matrix.
Location: Lavender Pit, Bisbee, Cohchise County, Arizona, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Chalcoalumite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.9169:1:1.1464
Help on Cell Dimensions: Cell Dimensions: a = 17.09, b = 8.915, c = 10.221, Z = 4; beta = 95.883° V = 1,549.04 Den(Calc)= 2.25
Help on Crystal System: Crystal System: Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.5(1), 4.25(0.91), 4.18(0.23),
 

Physical Properties of Chalcoalumite

Help on Cleavage: Cleavage: {100} Perfect
Help on Color: Color: Blue, Blue gray, Greenish blue, Light blue green.
Help on Density: Density: 2.29
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Flexible - Flexible fragments.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous - Dull
Help on Streak: Streak: bluish white
 

Optical Properties of Chalcoalumite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.063 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.047 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2326,KPDmeas= 0.2285,KC= 0.244
Ncalc = 1.55 - 1.56
Help on Optical Data: Optical Data: Biaxial (+), a=1.52, b=1.52, g=1.53, bire=0.0100, 2V(Calc)=0, 2V(Meas)=0-15. Dispersion relatively strong.
 

Calculated Properties of Chalcoalumite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.29 gm/cc
note: Specific Gravity of Chalcoalumite =2.25 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0007402576
Boson Index = 0.9992597424
Help on Photoelectric: Photoelectric: PEChalcoalumite = 6.07 barns/electron
U=PEChalcoalumite x rElectron Density= 13.87 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chalcoalumite is Not Radioactive
 

Chalcoalumite Classification
Help on Dana Class: Dana Class: 31.03.01.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.03)where (A+ B++)5 (XO4) Zq·x(H2O)
  (31.03.01)Dana Group
 
31.03.01.01 Chalcoalumite CuAl4(SO4)(OH)12•3(H2O) P 21 2
 
31.03.01.02 Nickelalumite* (Ni,Cu)Al4[(SO4),(NO3)2](OH)12•3(H2O) P 21 2
 
31.03.01.03 Kyrgyzstanite! ZnAl4(SO4)(OH)12•3(H2O) P 21/n 2/m
Help on Strunz Class: Strunz Class: 07.DD.75 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.75 Chalcoalumite CuAl4(SO4)(OH)12•3(H2O) P 21 2
 
07.DD.75 Nickelalumite* (Ni,Cu)Al4[(SO4),(NO3)2](OH)12•3(H2O) P 21 2
 

Other Chalcoalumite Information
Help on References: References: NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana)
Help on See Also: See Also: Links to other databases for Chalcoalumite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - YupRocks

Search for Chalcoalumite using:

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

Visit our Advertisers for Chalcoalumite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Diamond Dan Publications

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Chalcoalumite Mineral Data :

Ask about Chalcoalumite 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 Chalcoalumite Specimen Label here :

Chalcoalumite

CuAl4(SO4)(OH)12•3(H2O)
Dana No: 31.03.01.01 Strunz No: 07.DD.75
Locality:

 

Notes: