Bilinite Mineral Data

Bilinite Mineral Data
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General Bilinite Information

Help on Chemical Formula: Chemical Formula: Fe++Fe+++2(SO4)4•22(H2O)
Help on Composition: Composition: Molecular Weight = 948.13 gm
   Iron      17.67 %  Fe    7.58 % FeO / 16.84 % Fe2O3
   Hydrogen   4.68 %  H    41.80 % H2O
   Sulfur    13.53 %  S    33.78 % SO3
   Oxygen    64.12 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+Fe3+2(SO4)4•22(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1913
Help on Locality: Locality: Schwaz, near Bilin, Bohemia, Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Bilinite Say BILINITE
 

Bilinite Image

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Bilinite

Comments: Powdery crust of white bilinite on pyrite.
Location: Bisbee, Cochise County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Bilinite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.2551:1:0.8735
Help on Cell Dimensions: Cell Dimensions: a = 6.208, b = 24.333, c = 21.255, Z = 4; beta = 100.3° V = 3,159.02 Den(Calc)= 1.99
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.51(1), 4.21(1), 4.85(0.5),4.1(0.4), 2.89(0.3), 3.29(0.3), 4.96(0.3), 5.48(0.3),
 

Physical Properties of Bilinite

Help on Color: Color: White, Yellow.
Help on Density: Density: 1.87
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Bilinite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.067 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2513,KPDmeas= 0.2674,KC= 0.2692
Ncalc = 1.5 - 1.54
Help on Optical Data: Optical Data: Biaxial (+/-), b=1.5
 

Calculated Properties of Bilinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.93 gm/cc
note: Specific Gravity of Bilinite =1.87 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0050755938
Boson Index = 0.9949244062
Help on Photoelectric: Photoelectric: PEBilinite = 5.92 barns/electron
U=PEBilinite x rElectron Density= 11.45 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bilinite is Not Radioactive
 

Bilinite Classification
Help on Dana Class: Dana Class: 29.07.03.05 (29)Hydrated Acid and Sulfates
  (29.07)where A (B)2 (XO4)4 · x(H2O)
  (29.07.03)Halotrichite Group (Monoclinic with 22 H2O)
 
29.07.03.01 Pickeringite MgAl2(SO4)4•22(H2O) P 2 2
 
29.07.03.02 Halotrichite FeAl2(SO4)4•22(H2O) P 2 2
 
29.07.03.03 Apjohnite MnAl2(SO4)4•22(H2O) P 21/c 2/m
 
29.07.03.04 Dietrichite (Zn,Fe,Mn)Al2(SO4)4•22(H2O) P 21/c 2/m
 
29.07.03.05 Bilinite FeFe2(SO4)4•22(H2O) P 21/c 2/m
 
29.07.03.06 Redingtonite (Fe,Mg,Ni)(Cr,Al)2(SO4)4•22(H2O) Mono
 
29.07.03.07 Wupatkiite (Co,Mg,Ni)Al2(SO4)4•22(H2O) P 21/c 2/m
Help on Strunz Class: Strunz Class: 07.CB.85 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CB -With only medium-sized cations
 
07.CB.85 Bilinite FeFe2(SO4)4•22(H2O) P 21/c 2/m
 
07.CB.85 Apjohnite MnAl2(SO4)4•22(H2O) P 21/c 2/m
 
07.CB.85 Dietrichite (Zn,Fe,Mn)Al2(SO4)4•22(H2O) P 21/c 2/m
 
07.CB.85 Halotrichite FeAl2(SO4)4•22(H2O) P 2 2
 
07.CB.85 Pickeringite MgAl2(SO4)4•22(H2O) P 2 2
 
07.CB.85 Redingtonite (Fe,Mg,Ni)(Cr,Al)2(SO4)4•22(H2O) Mono
 
07.CB.85 Wupatkiite (Co,Mg,Ni)Al2(SO4)4•22(H2O) P 21/c 2/m
 

Other Bilinite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Ford32) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Bilinite :
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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Ask about Bilinite here :
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Mindat.org's Discussion Groups
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Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

Print or Cut-and-Paste your Bilinite Specimen Label here :

Bilinite

Fe++Fe+++2(SO4)4•22(H2O)
Dana No: 29.07.03.05 Strunz No: 07.CB.85
Locality:

 

Notes: