Butlerite Mineral Data

General Butlerite Information

Chemical Formula:

Fe+++(SO4)(OH)•2(H2O)

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

Empirical Formula:

Fe³⁺(SO₄)(OH)•2(H₂O)

Environment:

Rarely formed from the oxidation of pyritic ore; may be formed under fumarolic conditions from mine fires.

IMA Status:

Valid Species (Pre-IMA) 1928

Locality:

United Verde copper mine, Jerome, Yavapai Co., Arizona. Link to MinDat.org Location Data.

Name Origin:

Named for Gurdon Montague Butler (1881-1961), American mining geologist, University of Arizona, Tucson, Arizona, USA.

Name Pronunciation:

Butlerite + Pronunciation

Synonym:

ICSD 155199

PDF 25-409

Butlerite Image

Images:

Butlerite

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

Axial Ratios:

a:b:c =0.8809:1:0.803

Cell Dimensions:

a = 6.44, b = 7.31, c = 5.87, Z = 2; beta = 108.583° V = 261.93 Den(Calc)= 2.60

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 4.97(1), 3.15(0.8), 3.59(0.6),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
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 large pop-up is very compute intensive and may not work well with some computers.

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

Fanfani L , Nunzi A , Zanazzi P F , American Mineralogist , 56 (1971) p.751-757, The crystal structure of butlerite

Physical Properties of Butlerite

Cleavage:

{100} Perfect

Color:

Dark yellow, Orange.

Density:

2.55

Diaphaneity:

Transparent

Hardness:

2.5 - Finger Nail

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Streak:

light yellow

Optical Properties of Butlerite

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

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

Electron Density:

Bulk Density (Electron Density)=2.56 gm/cc
note: Specific Gravity of Butlerite =2.55 gm/cc.

Fermion Index:

Fermion Index = 0.0072162779
Boson Index = 0.9927837221

Photoelectric:

PE_Butlerite= 8.92 barns/electron
U=PE_Butlerite x rElectron Density= 22.85 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Butlerite is Not Radioactive

Butlerite Classification

Dana Class:

31.09.01.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.09)where (A+ B++) (XO4) Zq·x(H2O)

(31.09.01)Dana Group

31.09.01.01 Butlerite Fe(SO4)(OH)•2(H2O) P 2₁/m 2/m

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

References:

NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

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
15 - WWW-MINCRYST

Search for Butlerite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Butlerite :

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

Ask about Butlerite 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 Butlerite Specimen Label here :

Butlerite

Fe+++(SO4)(OH)•2(H2O)
Dana No: 31.09.01.01 Strunz No: 07.DC.10
Locality:

Notes: