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Spangolite Mineral Data

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General Spangolite Information

Help on Chemical  Formula: Chemical Formula: Cu6Al(SO4)(OH)12Cl•3(H2O)
Help on Composition: Composition: Molecular Weight = 797.91 gm
   Aluminum   3.38 %  Al    6.39 % Al2O3
   Copper    47.78 %  Cu   59.82 % CuO
   Hydrogen   2.27 %  H    20.32 % H2O
   Sulfur     4.02 %  S    10.03 % SO3
   Chlorine   4.44 %  Cl    4.44 % Cl
               -   %   Cl   -1.00 % -O=Cl2   
   Oxygen    38.10 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu6Al(SO4)(OH)12Cl•3(H2O)
Help on Environment: Environment: Secondary mineral in copper deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1890
Help on Locality: Locality: Globe, Globe Hills District, Tombstone, Gila County, Arizona, USA Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Norman Spang (1889-1954), American mineral collector, USA.
Help on Name Pronunciation: Name Pronunciation: Spangolite + Pronunciation Say SPANGOLITE
Help on Synonym: Synonym: ICSD 72806
  PDF 5-142

Spangolite Image

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Comments: Blue, hexagonal (trigonal) crystals of spangolite on matrix.
Location: Blanchard mine, Bingham, Socorro County, New Mexico, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Spangolite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.73903
Help on Cell Dimensions: Cell Dimensions: a = 8.254, c = 14.354, Z = 2; V = 846.90 Den(Calc)= 3.13
Help on Crystal System: Crystal System: Trigonal - Ditrigonal Pyramidal H-M Symbol (3m) Space Group: P 31c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.1(1), 3.59(0.8), 2.54(0.7),
Help on Forms: Forms:

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

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

Help on Above

Forms: ( 1 0 2) ( 1 0 3) ( 1 0 1) ( 0 0 1)

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Physical Properties of Spangolite

Help on Cleavage: Cleavage: {0001} Perfect, {1011} Distinct
Help on Color: Color: Blue green, Green, Dark green, Emerald green.
Help on Density: Density: 3.1
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 Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: light green

Optical Properties of Spangolite

Help on Dichroism (e): Dichroism (e): bluish green.
Help on Dichroism (w): Dichroism (w): weak green.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.002 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.012 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2133,KPDmeas= 0.2153,KC= 0.2158
Ncalc = 1.67 - 1.68
Help on Optical Data: Optical Data: Uniaxial (-), e=1.641, w=1.694, bire=0.0530.

Calculated Properties of Spangolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.03 gm/cc
note: Specific Gravity of Spangolite =3.10 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0004876892
Boson Index = 0.9995123108
Help on Photoelectric: Photoelectric: PESpangolite = 21.29 barns/electron
U=PESpangolite x rElectron Density= 64.51 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Spangolite is Not Radioactive

Spangolite Classification

Help on  Dana Class: Dana Class: (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.01)where (A+ B++)m (XO4)p Zq�x(H2O), where m:p>6:1
  (31.01.05)Dana Group Spangolite Cu6Al(SO4)(OH)12Cl•3(H2O) P 31c 3m
Help on  Strunz Class: Strunz Class: 07.DD.15 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.15 Spangolite Cu6Al(SO4)(OH)12Cl•3(H2O) P 31c 3m

Other Spangolite Information

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

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Dana No: Strunz No: 07.DD.15





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