Siderotil Mineral Data

Siderotil Mineral Data
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General Siderotil Information

Help on Chemical Formula: Chemical Formula: Fe++SO4•5(H2O)
Help on Composition: Composition: Molecular Weight = 241.99 gm
   Iron      23.08 %  Fe   29.69 % FeO
   Hydrogen   4.17 %  H    37.22 % H2O
   Sulfur    13.25 %  S    33.09 % SO3
   Oxygen    59.51 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+(SO4)•5(H2O)
Help on Environment: Environment: Dehydration of cuprian melanterite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1891
Help on Locality: Locality: Idrija (Idria), Slovenia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for iron, sideros, and for fiber, tilos, for its composition and structure.
Help on Name Pronunciation: Name Pronunciation: Siderotil + Pronunciation Say SIDEROTIL
 

Siderotil Image

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Siderotil

Comments: Siderotil pseudomorphs after melanterite.
Location: 2700' level, Campbell Shaft, Bisbee, Cochise County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Siderotil Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.5888:1:0.57
Help on Cell Dimensions: Cell Dimensions: a = 6.26, b = 10.63, c = 6.06, Z = 2; alpha = 97.25°, beta = 109.67°, gamma = 75° V = 363.85 Den(Calc)= 2.21
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.89(1), 3.73(0.8), 5.57(0.6),
Click Here for Large Siderotil Structure Window Crystal Structure:

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Peterson R C , Roeder P L , Zhang Y , The Canadian Mineralogist , 41 (2003) p.671-676, The atomic structure of siderotil, (Fe,Cu)SO4.5H2O

 

Physical Properties of Siderotil

Help on Color: Color: Yellowish, Yellowish white, White, Light green, Light green white.
Help on Density: Density: 2.1 - 2.2, Average = 2.15
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Siderotil

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.013 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2396,KPDmeas= 0.2441,KC= 0.2409
Ncalc = 1.51 - 1.53
Help on Optical Data: Optical Data: Biaxial (-), a=1.513-1.515, b=1.525-1.526, g=1.534-1.536, bire=0.0210, 2V(Calc)=80-86, 2V(Meas)=50.
 

Calculated Properties of Siderotil

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.24 gm/cc
note: Specific Gravity of Siderotil =2.19 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0061783514
Boson Index = 0.9938216486
Help on Photoelectric: Photoelectric: PESiderotil = 7.46 barns/electron
U=PESiderotil x rElectron Density= 16.75 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Siderotil is Not Radioactive
 

Siderotil Classification
Help on Dana Class: Dana Class: 29.06.07.02 (29)Hydrated Acid and Sulfates
  (29.06)where A XO4 · x(H2O)
  (29.06.07)Chalchanthite Group (Triclinic: P-1)
 
29.06.07.01 Chalcanthite CuSO4•5(H2O) P1 1
 
29.06.07.02 Siderotil FeSO4•5(H2O) P1 1
 
29.06.07.03 Pentahydrite MgSO4•5(H2O) P1 1
 
29.06.07.04 Jokokuite MnSO4•5(H2O) P1 1
Help on Strunz Class: Strunz Class: 07.CB.20 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CB -With only medium-sized cations
 
07.CB.20 Chalcanthite CuSO4•5(H2O) P1 1
 
07.CB.20 Jokokuite MnSO4•5(H2O) P1 1
 
07.CB.20 Pentahydrite MgSO4•5(H2O) P1 1
 
07.CB.20 Siderotil FeSO4•5(H2O) P1 1
 

Other Siderotil 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 Siderotil :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - Handbook of Mineralogy (MinSocAm)
6 - Handbook of Mineralogy (UofA)
7 - MinDAT
8 - MinMax(Deutsch)
9 - MinMax(English)
10 - Mineral and Gemstone Kingdom
11 - Mineralienatlas (Deutsch)
12 - QUT Mineral Atlas
13 - Ruff.Info
14 - WWW-MINCRYST

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Siderotil

Fe++SO4•5(H2O)
Dana No: 29.06.07.02 Strunz No: 07.CB.20
Locality:

 

Notes: