Zincaluminite Mineral Data

Zincaluminite Mineral Data +

General Zincaluminite Information

Chemical Formula:

Zn6Al6(SO4)2(OH)26·5(H2O)

Composition:

Molecular Weight = 1,278.62 gm

Aluminum 12.66 % Al 23.92 % Al₂O₃

Zinc 30.68 % Zn 38.19 % ZnO

Hydrogen 2.84 % H 25.36 % H₂O

Sulfur 5.02 % S 12.52 % SO₃

Oxygen 48.80 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Zn₆Al₆(SO₄)₂(OH)₂₆·5(H₂O)

Environment:

Questionable species. Ancient lead slags.

IMA Status:

Valid Species (Pre-IMA) 1881

Locality:

Laurium, Greece. Link to MinDat.org Location Data.

Name Origin:

Named for the composition.

Zincaluminite Image

Images:

Zincaluminite

Comments: Bright white to pastel blue botryoidal zincaluminite with cuprian-adamite.
Location: Kamariza Mine, Laurium, Attiki, Greece. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Zincaluminite Crystallography

Crystal System:

HexagonalSpace Group: Unk

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

By Intensity(I/I_o): 4.83(1), 11.1(0.5), 7.07(0.4),2.4(0.3), 2.45(0.3), 4.35(0.3), 2.71(0.2), 3.55(0.2),

Physical Properties of Zincaluminite

Color:

Bluish white, White, Light blue.

Density:

2.26

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

2.5-3 - Finger Nail-Calcite

Streak:

white

Optical Properties of Zincaluminite

Gladstone-Dale:

CI meas= -0.062 (Fair) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2319,KC= 0.2183

Optical Data:

Uniaxial (-), e=1.514, w=1.534, bire=0.0200.

Calculated Properties of Zincaluminite

Electron Density:

r_electron=2.26 gm/cc
note: r_{Zincaluminite}=2.26 gm/cc.

Fermion Index

Fermion Index = 0.01319
Boson Index = 0.98681

Photoelectric:

PE_{Zincaluminite}= 15.46 barns/electron
U=PE_{Zincaluminite} x r_electron= 34.86 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Zincaluminite is Not Radioactive

Zincaluminite Classification

Dana Class:

31.2.3.1 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.2)where (A+ B++)6 (XO4) Zq·x(H2O)

(31.2.3)Dana Group

31.2.3.1 Zincaluminite Zn6Al6(SO4)2(OH)26·5(H2O) Unk Hex

Strunz Class:

VI/D.08-100 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium size

VI/D.08 - Spangolite - Glaucocerinite series

VI/D.08-05 Bechererite! (Zn,Cu)6Zn2(OH)13[(S,Si)(O,OH)4]2 P 3 3

VI/D.08-10 Spangolite Cu6Al(SO4)(OH)12Cl·3(H2O) P 3₁c 3m

VI/D.08-20 Cyanotrichite Cu4Al2(SO4)(OH)12·2(H2O) Unk Ortho

VI/D.08-30 Carbonate-cyanotrichite Cu4Al2(CO3,SO4)(OH)12·2(H2O) Unk Ortho

VI/D.08-35 Camerolaite Cu4Al2[HSbO4,SO4](OH)10(CO3)·2(H2O) P 2₁ ? 2

VI/D.08-40 Woodwardite Cu4Al2(SO4)(OH)12·2-4(H2O) Unk Hex

VI/D.08-42 Hydrowoodwardite! Cu1-xAlx(OH)2(SO4)x/2·n(H2O)with0<x<0.67andn>3x/2 R 3m 3 2/m

VI/D.08-45 Zincowoodwardite! [Zn1-xAlx(OH)2][(SO4)x/2(H2O)n] P 3- or R 3m 3

VI/D.08-45* Zincowoodwardite-1T! [Zn1BxAlx(OH)2][(SO4)x/2·n(H2O)],x=0.33,n.0.96 P 3 3

VI/D.08-45** Zincowoodwardite-3R! [Zn1BxAlx(OH)2][(SO4)x/2·n(H2O)],0.32<x<0.50,n=0.59 R 3m 3 2/m

VI/D.08-50 Chalcoalumite CuAl4(SO4)(OH)12·3(H2O) P 2₁ 2

VI/D.08-60 Nickelalumite (Ni,Cu)Al4[(SO4),(NO3)2](OH)12·3(H2O) P 2₁ 2

VI/D.08-70 Mbobomkulite (Ni,Cu)Al4(NO3,SO4)2(OH)12·3(H2O) P 2₁ 2

VI/D.08-80 Hydrombobomkulite (Ni,Cu)Al4(NO3,SO4)2(OH)12·14(H2O) Unk Mono

VI/D.08-90 Carrboydite (Ni,Cu)14Al9(SO4,CO3)6(OH)43·7(H2O) Unk Hex

VI/D.08-100 Zincaluminite Zn6Al6(SO4)2(OH)26·5(H2O) Unk Hex

VI/D.08-110 Glaucocerinite (Zn,Cu)5Al3(SO4)1.5(OH)16·9(H2O) Unk (HEX-R) Trig

Other Zincaluminite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Zincaluminite :
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 Zincaluminite using:

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

Visit our Advertisers for Zincaluminite :
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 Zincaluminite Mineral Data :

Ask about Zincaluminite 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 Zincaluminite Specimen Label here :

Zincaluminite

Zn6Al6(SO4)2(OH)26·5(H2O)
Dana No: 31.2.3.1 Strunz No: VI/D.08-100
Locality:

Notes: