Goslarite Mineral Data

Goslarite Mineral Data +

[New Updates] [Gallery 1] [Gallery 2] [Gallery 3] [Rock Shop Gallery]
Serving the mineral collector and educator community since 1970
Over 900,000 mineral specimens in stock
New minerals acquired weekly - Wright's Rock Shop

General Goslarite Information

Chemical Formula:

ZnSO4·7(H2O)

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

Empirical Formula:

Zn(SO₄)·7(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1847

Locality:

Link to MinDat.org Location Data.

Name Origin:

Named after its original locality in Goslar, Germany

Goslarite Image

Images:

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

Axial Ratios:

a:b:c =0.9791:1:0.5661

Cell Dimensions:

a = 11.799, b = 12.05, c = 6.822, Z = 4; V = 969.94 Den(Calc)= 1.97

Crystal System:

Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 2₁2₁2₁

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

By Intensity(I/I_o): 4.21(1), 5.36(0.8), 4.18(0.5),

Physical Properties of Goslarite

Cleavage:

[010] Perfect

Color:

Blue, Brown, Colorless, Green, Green blue.

Density:

Diaphaniety:

Transparent to Translucent

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Habit:

Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite).

Hardness:

2-2.5 - Gypsum-Finger Nail

Luminescence:

None.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Goslarite

Gladstone-Dale:

CI meas= 0.033 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.019 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2386,KPDmeas= 0.235,KC= 0.2431

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.

Pleochroism (x):

none.

Pleochroism (y):

non.

Calculated Properties of Goslarite

Electron Density:

r_electron=2.03 gm/cc
note: r_Goslarite=1.97 gm/cc.

Fermion Index

Fermion Index = 0.01046
Boson Index = 0.98954

Photoelectric:

PE_Goslarite= 11.38 barns/electron
U=PE_Goslarite x r_electron= 23.08 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Goslarite is Not Radioactive

Goslarite Classification

Dana Class:

29.6.11.2 (29)Hydrated Acid and Sulfates

(29.6)where A XO4 · x(H2O)

(29.6.11)Dana Group

29.6.11.1 Epsomite MgSO4·7(H2O) P 2₁2₁2₁ 2 2 2

29.6.11.2 Goslarite ZnSO4·7(H2O) P 2₁2₁2₁ 2 2 2

29.6.11.3 Morenosite NiSO4·7(H2O) P 2₁2₁2₁ 2 2 2

Strunz Class:

VI/C.07-30 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/C - Water-bearing sulfates without unfamiliar anions. cations of medium size

VI/C.07 - Epsomite - Goslarite series

VI/C.07-10 Epsomite MgSO4·7(H2O) P 2₁2₁2₁ 2 2 2

VI/C.07-20 Morenosite NiSO4·7(H2O) P 2₁2₁2₁ 2 2 2

VI/C.07-30 Goslarite ZnSO4·7(H2O) P 2₁2₁2₁ 2 2 2

Other Goslarite Information

References:

NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

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 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Goslarite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Goslarite :

AA Mineral Specimens

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

MineralsWeb Fine Minerals

The GeoZone

Wrights Rock Shop

Translate Goslarite Mineral Data :

Ask about Goslarite 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 Goslarite Specimen Label here :

Goslarite

ZnSO4·7(H2O)
Dana No: 29.6.11.2 Strunz No: VI/C.07-30
Locality:

Notes: