Glaucocerinite Mineral Data

General Glaucocerinite Information

Chemical Formula:

(Zn,Cu)5Al3(SO4)1.5(OH)16•9(H2O)

Composition:

Molecular Weight = 982.56 gm

Aluminum 8.24 % Al 15.57 % Al₂O₃

Zinc 19.97 % Zn 24.85 % ZnO

Copper 12.93 % Cu 16.19 % CuO

Hydrogen 3.49 % H 31.17 % H₂O

Sulfur 4.90 % S 12.22 % SO₃

Oxygen 50.48 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Zn₃Cu₂Al₃(SO₄)_1.5(OH)₁₆•9(H₂O)

Environment:

Ancient lead slags.

IMA Status:

Valid Species (Pre-IMA) 1932

Locality:

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

Name Origin:

Named from the Greek for "blue" and "waxlike".

Name Pronunciation:

Glaucocerinite + Pronunciation

Glaucocerinite Image

Images:

Glaucocerinite

Comments: Botryoidal crust of blue glaucocerinite.
Location: Mina Serpieri, Laurium, Attiki, Greece. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Glaucocerinite Crystallography

Axial Ratios:

a:c = 1:10.63788

Cell Dimensions:

a = 3.057, c = 32.52, Z = 0.375; V = 263.19 Den(Calc)= 2.32

Crystal System:

Trigonal Space Group: Unk (HEX-R)

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

By Intensity(I/I_o): 10.9(1), 5.45(0.9), 3.63(0.8),

Physical Properties of Glaucocerinite

Cleavage:

{???} Perfect

Color:

White, Sky blue, Gray, Greenish, Brownish.

Density:

2.4

Diaphaneity:

Transparent

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Nodular - Tuberose forms having irregular protuberances over the surface.

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Hardness:

1 - Talc

Luster:

Waxy

Streak:

bluish white

Optical Properties of Glaucocerinite

Gladstone-Dale:

CI meas= -0.015 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.05 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2379,KPDmeas= 0.23,KC= 0.2266
Ncalc = 1.53 - 1.54

Optical Data:

Biaxial (-), a=1.54, b=1.554, g=1.562, bire=0.0220, 2V(Calc)=72, 2V(Meas)=60.

Calculated Properties of Glaucocerinite

Electron Density:

Bulk Density (Electron Density)=2.41 gm/cc
note: Specific Gravity of Glaucocerinite =2.40 gm/cc.

Fermion Index:

Fermion Index = 0.0088004301
Boson Index = 0.9911995699

Photoelectric:

PE_{Glaucocerinite}= 15.58 barns/electron
U=PE_{Glaucocerinite} x rElectron Density= 37.53 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Glaucocerinite is Not Radioactive

Glaucocerinite Classification

Dana Class:

31.04.08.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.04)where (A+ B++)4 (XO4) Zqï¿½x(H2O)

(31.04.08)Dana Group

31.04.08.01 Glaucocerinite (Zn,Cu)5Al3(SO4)1.5(OH)16•9(H2O) Unk (HEX-R) Trig

31.04.08.02 Natroglaucocerinite! (Na,Zn,Cu)10Al6(SO4)3(OH)32•18(H2O)? Unk

Strunz Class:

07.DD.35 07 - SULFATES (SELENATES, TELLURATES)

07.D - Sulfates (selenates, etc.) with additional anions, with H2O

07.DD -With only medium-sized cations; sheets of edge-sharing octahedra

07.DD.35 Carrboydite (Ni,Cu)14Al9(SO4,CO3)6(OH)43•7(H2O) Unk Hex

07.DD.35 Glaucocerinite (Zn,Cu)5Al3(SO4)1.5(OH)16•9(H2O) Unk (HEX-R) Trig

07.DD.35 Honessite Ni6Fe2(SO4)(OH)16•4(H2O) R 3m 3 2/m

07.DD.35 Hydrowoodwardite! Cu1-xAlx(OH)2(SO4)x/2•n(H2O)with0<x<0.67andn>3x/2 R 3m 3 2/m

07.DD.35 Zincowoodwardite! [Zn1-xAlx(OH)2][(SO4)x/2(H2O)n] P 3- or R 3m 3

07.DD.35 Hydrohonessite Ni6Fe2(SO4)(OH)16•7(H2O) Unk Hex

07.DD.35 Motukoreaite Na2Mg38Al24(CO3)13(SO4)8(OH)108•56(H2O) R 3m 3 2/m

07.DD.35 Mountkeithite (Mg,Ni)11(Fe,Cr)3(SO4,CO3)3.5(OH)24•11(H2O) Unk Hex

07.DD.35 Shigaite Mn7Al4(SO4)2(OH)22•8(H2O) R 3 3

07.DD.35 Natroglaucocerinite! (Na,Zn,Cu)10Al6(SO4)3(OH)32•18(H2O)? Unk

07.DD.35 Wermlandite (Ca,Mg)Mg7(Al,Fe)2(SO4)2(OH)18•12(H2O) P 3c1 3 2/m

07.DD.35 Nikischerite! NaFe6Al3(SO4)2(OH)18(H2O)12 R 3 3

07.DD.35 Zincaluminite Zn6Al6(SO4)2(OH)26•5(H2O) Unk Hex

07.DD.35 Woodwardite Cu4Al2(SO4)(OH)12•2-4(H2O) Unk Hex

07.DD.35 Zincowoodwardite-3R! [Zn1BxAlx(OH)2][(SO4)x/2•n(H2O)],0.32<x<0.50,n=0.59 R 3m 3 2/m

07.DD.35 Zincowoodwardite-1T! [Zn1BxAlx(OH)2][(SO4)x/2•n(H2O)],x=0.33,n.0.96 P 3 3

Other Glaucocerinite 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 Glaucocerinite :
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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Glaucocerinite

(Zn,Cu)5Al3(SO4)1.5(OH)16•9(H2O)
Dana No: 31.04.08.01 Strunz No: 07.DD.35
Locality:

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