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Goslarite Mineral Data

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General Goslarite Information

Help on Chemical  Formula: Chemical Formula: ZnSO4•7(H2O)
Help on Composition: Composition: Molecular Weight = 287.56 gm
   Zinc      22.74 %  Zn   28.30 % ZnO
   Hydrogen   4.91 %  H    43.85 % H2O
   Sulfur    11.15 %  S    27.84 % SO3
   Oxygen    61.20 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn(SO4)•7(H2O)
Help on Environment: Environment: Efflorescent crusts on mine timbers formed from the oxidation of sphalerite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1847
Help on Locality: Locality: Rammelsberg mine, near Goslar, Harz, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Goslarite + Pronunciation Say GOSLARITE
 

Goslarite Image

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  Goslarite

Comments: Pale yellow to egg-shell white fibrous goslarite with radiating structure.
Location: Rammelsberg, near Goslar, Harz Mountains, Niedersachsen, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Goslarite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9786:1:0.5653
Help on Cell Dimensions: Cell Dimensions: a = 11.8176, b = 12.0755, c = 6.827, Z = 4; V = 974.24 Den(Calc)= 1.96
Help on Crystal System: Crystal System: Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 212121
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.21(1), 5.36(0.8), 4.18(0.5),
 

Physical Properties of Goslarite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Blue, Brown, Colorless, Green, Green blue.
Help on Density: Density: 2
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Habit: Habit: Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite).
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Goslarite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.033 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.014 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2398,KPDmeas= 0.235,KC= 0.2431
Ncalc = 1.48 - 1.49
Help on Optical Data: Optical Data: Biaxial (-), a=1.447-1.463, b=1.475-1.48, g=1.47-1.485, bire=0.0220-0.0230, 2V(Meas)=46. Dispersion none.
Help on Pleochroism (x): Pleochroism (x): none.
Help on Pleochroism (y): Pleochroism (y): non.
 

Calculated Properties of Goslarite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.02 gm/cc
note: Specific Gravity of Goslarite =1.96 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEGoslarite = 11.38 barns/electron
U=PEGoslarite x rElectron Density= 22.96 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Goslarite is Not Radioactive
 

Goslarite Classification

Help on  Dana Class: Dana Class: 29.06.11.02 (29)Hydrated Acid and Sulfates
  (29.06)where A XO4 � x(H2O)
  (29.06.11)Epsomite Group
 
29.06.11.01 Epsomite MgSO4•7(H2O) P 212121 2 2 2
 
29.06.11.02 Goslarite ZnSO4•7(H2O) P 212121 2 2 2
 
29.06.11.03 Morenosite NiSO4•7(H2O) P 212121 2 2 2
Help on  Strunz Class: Strunz Class: 07.CB.40 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CB -With only medium-sized cations
 
07.CB.40 Epsomite MgSO4•7(H2O) P 212121 2 2 2
 
07.CB.40 Goslarite ZnSO4•7(H2O) P 212121 2 2 2
 
07.CB.40 Morenosite NiSO4•7(H2O) P 212121 2 2 2
 

Other Goslarite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8, AmMin, v91, p221) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Goslarite :
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

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

Goslarite

ZnSO4•7(H2O)
Dana No: 29.06.11.02 Strunz No: 07.CB.40
Locality:

 

Notes:

 

 
   
 


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