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 % Al2 O3
Zinc 19.97 % Zn 24.85 % ZnO
Copper 12.93 % Cu 16.19 % CuO
Hydrogen 3.49 % H 31.17 % H2 O
Sulfur 4.90 % S 12.22 % SO3
Oxygen 50.48 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Zn3 Cu2 Al3 (SO4 )1.5 (OH)16 •9(H2 O)
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 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)
X Ray Diffraction:
By Intensity(I/Io ): 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:
PEGlaucocerinite = 15.58 barns/electronU=PEGlaucocerinite x r Electron 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) Zq�x(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 3 m 3 2/m
07.DD.35 Hydrowoodwardite ! Cu1-xAlx(OH)2(SO4)x/2•n(H2O)with0<x<0.67andn>3x/2 R 3 m 3 2/m
07.DD.35 Zincowoodwardite ! [Zn1-xAlx(OH)2][(SO4)x/2(H2O)n] P 3- or R 3 m 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 3 m 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 3 c1 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 3 m 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:
Notes:
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