Sweetite Mineral Data

Sweetite Mineral Data +

General Sweetite Information

Chemical Formula:

Zn(OH)2

Composition:

Molecular Weight = 99.40 gm

Zinc 65.78 % Zn 81.88 % ZnO

Hydrogen 2.03 % H 18.12 % H₂O

Oxygen 32.19 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Zn(OH)₂

IMA Status:

Approved IMA 1984

Locality:

Link to MinDat.org Location Data.

Sweetite Image

Images:

Sweetite

Comments: A white, pseudocubic crystal of sweetite.
Location: Milltown Quarry, Ashover, Derbyshire, England, UK. Scale: Picture size 1.4 mm.
© John Betts - Fine Minerals

Sweetite Crystallography

Axial Ratios:

a:c = 1:1.7441

Cell Dimensions:

a = 8.222, c = 14.34, Z = 20; V = 969.40 Den(Calc)= 3.41

Crystal System:

Tetragonal - TrapezohedralH-M Symbol (4 2 2) Space Group: P 4₁2₁2,P 4₃2₁2

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

By Intensity(I/I_o): 2.922(1), 3.572(0.6), 4.53(0.37),

Physical Properties of Sweetite

Color:

Colorless, White.

Density:

3.33

Diaphaniety:

Transparent to Translucent

Streak:

white

Optical Properties of Sweetite

Gladstone-Dale:

CI meas= 0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.03 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1852,KPDmeas= 0.1896,KC= 0.191

Optical Data:

Uniaxial (-), e=1.628, w=1.635, bire=0.0070.

Calculated Properties of Sweetite

Electron Density:

r_electron=3.22 gm/cc
note: r_Sweetite=3.33 gm/cc.

Fermion Index

Fermion Index = 0.02712
Boson Index = 0.97288

Photoelectric:

PE_Sweetite= 32.62 barns/electron
U=PE_Sweetite x r_electron= 104.89 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Sweetite is Not Radioactive

Sweetite Classification

Dana Class:

6.2.9.1 (6)Hydroxides and Oxides Containing Hydroxyl

(6.2)where X++ (OH)2

(6.2.9)Dana Group

6.2.9.1 Sweetite Zn(OH)2 P 4₁2₁2,P 4₃2₁2 4 2 2

Strunz Class:

IV/F.03-60 IV - Oxides

IV/F - Hydroxides and oxidic hydrates, water-bearing oxides with layered structure

IV/F.03 - Brucite series

IV/F.03-10 Brucite Mg(OH)2 P 3m1 3 2/m

IV/F.03-20 Amakinite (Fe,Mg)(OH)2 P 3m1 3 2/m

IV/F.03-30 Pyrochroite Mn(OH)2 P 3m1 3 2/m

IV/F.03-40 Theophrastite Ni(OH)2 P 3m1 3 2/m

IV/F.03-50 Paraotwayite Ni(OH)2-x(SO4,CO3)0.5xx=.5 Pm m

IV/F.03-60 Sweetite Zn(OH)2 P 4₁2₁2,P 4₃2₁2 4 2 2

IV/F.03-70 Ashoverite Zn(OH)2 I 4₁/amd 4/m 2/m 2/m

IV/F.03-80 Wulfingite Zn(OH)2 P 2₁2₁2₁ 2 2 2

IV/F.03-90 Spertiniite Cu(OH)2 C mc2₁ mm2

IV/F.03-100 Portlandite Ca(OH)2 P 3m1 3 2/m

Other Sweetite Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Sweetite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

Search for Sweetite using:

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

Visit our Advertisers for Sweetite :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Sweetite Mineral Data :

Ask about Sweetite 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 Sweetite Specimen Label here :

Sweetite

Zn(OH)2
Dana No: 6.2.9.1 Strunz No: IV/F.03-60
Locality:

Notes: