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Boyleite Mineral Data

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General Boyleite Information

Help on Chemical  Formula: Chemical Formula: (Zn,Mg)SO4•4(H2O)
Help on Composition: Composition: Molecular Weight = 223.24 gm
   Magnesium   2.72 %  Mg    4.51 % MgO
   Zinc       21.97 %  Zn   27.34 % ZnO
   Hydrogen    3.61 %  H    32.28 % H2O
   Sulfur     14.36 %  S    35.86 % SO3
   Oxygen     57.33 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn0.75Mg0.25(SO4)•4(H2O)
Help on Environment: Environment: Alteration product of sphalerite in a hydrothermal Pb-Zn vein.
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Kropbach quarry, Munstertal, Black Forest, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Robert William Boyle (1920- ), Canadian geochemist, Geological Survey of Canada, Ottawa, Canada.
Help on Name Pronunciation: Name Pronunciation: Boyleite Say BOYLEITE
Help on Synonym: Synonym: IMA1977-026
 

Boyleite Image

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  Boyleite

Comments: Powdery white crust of boyleite on pyrite.
Location: Kotzebue, Alaska, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Boyleite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4374:1:0.5852
Help on Cell Dimensions: Cell Dimensions: a = 5.95, b = 13.6, c = 7.96, Z = 4; beta = 90.3° V = 644.11 Den(Calc)= 2.30
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.47(1), 5.46(1), 6.85(0.8),
 

Physical Properties of Boyleite

Help on Cleavage: Cleavage: None
Help on Color: Color: White.
Help on Density: Density: 2.41
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous - Dull
Help on Streak: Streak: white
 

Optical Properties of Boyleite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.025 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2303,KPDmeas= 0.2198,KC= 0.2255
Ncalc = 1.52 - 1.54
Help on Optical Data: Optical Data: Biaxial (-), a=1.522, b=1.531, g=1.536, bire=0.0140, 2V(Calc)=72, 2V(Meas)=70.
 

Calculated Properties of Boyleite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.34 gm/cc
note: Specific Gravity of Boyleite =2.30 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEBoyleite = 11.36 barns/electron
U=PEBoyleite x rElectron Density= 26.57 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Boyleite is Not Radioactive
 

Boyleite Classification

Help on  Dana Class: Dana Class: 29.06.06.05 (29)Hydrated Acid and Sulfates
  (29.06)where A XO4 � x(H2O)
  (29.06.06)Rozenite Group (Monoclinic)
 
29.06.06.01 Rozenite FeSO4•4(H2O) P 21/n 2/m
 
29.06.06.02 Starkeyite MgSO4•4(H2O) P 21/n 2/m
 
29.06.06.03 Ilesite (Mn,Zn,Fe)SO4•4(H2O) P 21/n 2/m
 
29.06.06.04 Aplowite (Co,Mn,Ni)SO4•4(H2O) P 21/m 2/m
 
29.06.06.05 Boyleite (Zn,Mg)SO4•4(H2O) P 21/n 2/m
 
29.06.06.06 IMA2002-034! CdSO4•4(H2O) P 21/n 2/m
Help on  Strunz Class: Strunz Class: 07.CB.15 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CB -With only medium-sized cations
 
07.CB.15 Boyleite (Zn,Mg)SO4•4(H2O) P 21/n 2/m
 
07.CB.15 Aplowite (Co,Mn,Ni)SO4•4(H2O) P 21/m 2/m
 
07.CB.15 Ilesite (Mn,Zn,Fe)SO4•4(H2O) P 21/n 2/m
 
07.CB.15 Rozenite FeSO4•4(H2O) P 21/n 2/m
 
07.CB.15 Starkeyite MgSO4•4(H2O) P 21/n 2/m
 
07.CB.15 IMA2002-034! CdSO4•4(H2O) P 21/n 2/m
 

Other Boyleite 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 Boyleite :
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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Print or Cut-and-Paste your Boyleite Specimen Label here :

Boyleite

(Zn,Mg)SO4•4(H2O)
Dana No: 29.06.06.05 Strunz No: 07.CB.15
Locality:

 

Notes:

 

 
   
 


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