Mineralogy Database

Butlerite Mineral Data

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General Butlerite Information

Help on Chemical  Formula: Chemical Formula: Fe+++(SO4)(OH)•2(H2O)
Help on Composition: Composition: Molecular Weight = 204.95 gm
   Iron      27.25 %  Fe   38.96 % Fe2O3
   Hydrogen   2.46 %  H    21.98 % H2O
   Sulfur    15.65 %  S    39.07 % SO3
   Oxygen    54.65 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+(SO4)(OH)•2(H2O)
Help on Environment: Environment: Rarely formed from the oxidation of pyritic ore; may be formed under fumarolic conditions from mine fires.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1928
Help on Locality: Locality: United Verde copper mine, Jerome, Yavapai Co., Arizona. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Gurdon Montague Butler (1881-1961), American mining geologist, University of Arizona, Tucson, Arizona, USA.
Help on Name Pronunciation: Name Pronunciation: Butlerite + Pronunciation Say BUTLERITE
Help on Synonym: Synonym: ICSD 155199
  PDF 25-409

Butlerite Image

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Comments: Orange butlerite crystals.
Location: United Verde mine, Jerome, Yavapai County, Arizona, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Butlerite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8809:1:0.803
Help on Cell Dimensions: Cell Dimensions: a = 6.44, b = 7.31, c = 5.87, Z = 2; beta = 108.583° V = 261.93 Den(Calc)= 2.60
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.97(1), 3.15(0.8), 3.59(0.6),
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: ( 0 1 1) ( 1 1 0) ( 1 0 1) ( 1 0 0) ( 0 0 1)

Warning: this java applet does not work in some browsers because of security restrictions.


Physical Properties of Butlerite

Help on Cleavage: Cleavage: {100} Perfect
Help on Color: Color: Dark yellow, Orange.
Help on Density: Density: 2.55
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light yellow

Optical Properties of Butlerite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.036 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2569,KPDmeas= 0.262,KC= 0.2666
Ncalc = 1.68 - 1.69
Help on Optical Data: Optical Data: Biaxial (+/-), a=1.593-1.604, b=1.665-1.674, g=1.731-1.741, bire=0.1370-0.1380

Calculated Properties of Butlerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.56 gm/cc
note: Specific Gravity of Butlerite =2.55 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0072162779
Boson Index = 0.9927837221
Help on Photoelectric: Photoelectric: PEButlerite = 8.92 barns/electron
U=PEButlerite x rElectron Density= 22.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Butlerite is Not Radioactive

Butlerite Classification

Help on  Dana Class: Dana Class: (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.09)where (A+ B++) (XO4) Zq�x(H2O)
  (31.09.01)Dana Group Butlerite Fe(SO4)(OH)•2(H2O) P 21/m 2/m
Help on  Strunz Class: Strunz Class: 07.DC.10 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DC -With only medium-sized cations; chains of corner-sharing octahedra
07.DC.10 Butlerite Fe(SO4)(OH)•2(H2O) P 21/m 2/m
07.DC.10 Parabutlerite Fe(SO4)(OH)•2(H2O) Pmnb 2/m 2/m 2/m

Other Butlerite Information

Help on References: References: NAME( AntBidBlaNic5) 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 Butlerite :
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

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Dana No: Strunz No: 07.DC.10





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