Glaucocerinite
A valid IMA mineral species - grandfathered
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About Glaucocerinite
Formula:
(Zn1-xAlx)(OH)2(SO4)x/2 · nH2O
(x < 0.5, n > 3x/2). May contain Cu replacing Zn (formula for type material is given as Zn13Al8Cu7(SO4)2O30.34H2O).
Colour:
Sky-blue, turquoise-blue, greenish, greyish, brownish
Lustre:
Waxy
Hardness:
1
Specific Gravity:
2.749
Crystal System:
Hexagonal
Member of:
Name:
From the Greek γλαυκός for "sky-blue" and κήρινος for "wax-like," in allusion to its colour and appearance.
Compare also Woodwardite Group. Compare 'UM1985-07-OH:AlCuSZn' - corresponding to the alleged cotype specimen of glaucocerinite.
Unique Identifiers
Mindat ID:
1707
Long-form identifier:
mindat:1:1:1707:3
GUID
(UUID V4):
(UUID V4):
fa60d41e-d10e-45b8-a107-5445f3f9051f
IMA Classification of Glaucocerinite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
(Zn1-xAlx)(SO4)x/2(OH)2 · nH2O (x < 0.5, n > 3x/2)
First published:
1932
Classification of Glaucocerinite
7.DD.35
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
D : With only medium-sized cations; sheets of edge-sharing octahedra
31.4.8.1
31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
4 : (AB)4(XO4)Zq·xH2O
31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
4 : (AB)4(XO4)Zq·xH2O
25.5.10
25 : Sulphates
5 : Sulphates of Zn and Hg
25 : Sulphates
5 : Sulphates of Zn and Hg
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Gc | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Glaucocerinite
Waxy
Transparency:
Translucent
Colour:
Sky-blue, turquoise-blue, greenish, greyish, brownish
Comment:
Tints due to included impurities.
Hardness:
1 on Mohs scale
Density:
2.749 g/cm3 (Measured) 2.33 g/cm3 (Calculated)
Optical Data of Glaucocerinite
Type:
Biaxial (-)
RI values:
nα = 1.540(2) nβ = 1.554(2) nγ = 1.562(2)
2V:
Measured: 60° , Calculated: 72°
Birefringence:
High.
Max Birefringence:
δ = 0.022
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
weak
Chemistry of Glaucocerinite
Mindat Formula:
(Zn1-xAlx)(OH)2(SO4)x/2 · nH2O
(x < 0.5, n > 3x/2). May contain Cu replacing Zn (formula for type material is given as Zn13Al8Cu7(SO4)2O30.34H2O).
(x < 0.5, n > 3x/2). May contain Cu replacing Zn (formula for type material is given as Zn13Al8Cu7(SO4)2O30.34H2O).
Crystallography of Glaucocerinite
Crystal System:
Hexagonal
Cell Parameters:
a = 3.070(8) Å, c = 32.65(1) Å
Ratio:
a:c = 1 : 10.635
Unit Cell V:
266.50 ų (Calculated from Unit Cell)
Morphology:
Occurs as masses with a radial-fibrous structure and concentric colour banding.
Comment:
Hexagonal (?). Point Group: n.d.; Space Group: n.d. ; Z = n.d
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
10.9 Å | (100) |
5.45 Å | (90) |
3.63 Å | (80) |
2.62 Å | (60) |
2.46 Å | (60) |
2.231 Å | (50) |
1.981 Å | (50) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
47a : [Near-surface hydration of prior minerals] | |
47b : [Sulfates and sulfites] |
Type Occurrence of Glaucocerinite
General Appearance of Type Material:
Banded botryoidal crusts.
Place of Conservation of Type Material:
Dept. of Mineralogy and Crystallography, University of Vienna, Vienna, cat. no. C11.130; Natural History Museum, Vienna, Austria, cat. nos. G 1377, G 1378 (NOTE: the Handbook of mineralogy erroneously gives G 1378 and G 1379).
Reference:
Dittler, E., Koechlin, R. (1932) Über glaukokerinit, ein neues mineral von Laurion. Centralblatt für Mineralogie, Geologie und Paläontologie, 1, 13-17.
Synonyms of Glaucocerinite
Other Language Names for Glaucocerinite
German:Glaucocerinit
Glaukokerinit
Glaukokerinit
Spanish:Glaucocerinita
Relationship of Glaucocerinite to other Species
Member of:
Other Members of this group:
Carrboydite | (Ni1-xAlx)(SO4)x/2(OH)2 · nH2O | Hex. |
Hydrohonessite | (Ni1-xFe3+x)(OH)2(SO4)x/2 · nH2O | Hex. |
Mountkeithite | [(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2O | Hex. |
Zincaluminite | Zn6Al6(SO4)2(OH)16 · 5H2O |
Common Associates
Associated Minerals Based on Photo Data:
3 photos of Glaucocerinite associated with Felsőbányaite | Al4(SO4)(OH)10 · 4H2O |
3 photos of Glaucocerinite associated with Azurite | Cu3(CO3)2(OH)2 |
3 photos of Glaucocerinite associated with Zaccagnaite-3R | |
2 photos of Glaucocerinite associated with Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
2 photos of Glaucocerinite associated with Aragonite | CaCO3 |
2 photos of Glaucocerinite associated with Allophane | (Al2O3)(SiO2)1.3-2 · 2.5-3H2O |
1 photo of Glaucocerinite associated with Galena | PbS |
1 photo of Glaucocerinite associated with Goethite | α-Fe3+O(OH) |
1 photo of Glaucocerinite associated with Agardite |
Related Minerals - Strunz-mindat Grouping
7.DD. | Asagiite | NiCu4(SO4)2(OH)6 · 6H2O |
7.DD.05 | Felsőbányaite | Al4(SO4)(OH)10 · 4H2O |
7.DD.07 | Llantenesite | Cu6Al[SeO4](OH)12Cl · 3H2O |
7.DD.10 | Langite | Cu4(SO4)(OH)6 · 2H2O |
7.DD.10 | Posnjakite | Cu4(SO4)(OH)6 · H2O |
7.DD.10 | Wroewolfeite | Cu4(SO4)(OH)6 · 2H2O |
7.DD.10 | Gobelinite | CoCu4(SO4)2(OH)6 · 6H2O |
7.DD.10 | Fehrite | MgCu4(SO4)2(OH)6 · 6H2O |
7.DD.15 | Spangolite | Cu6Al(SO4)(OH)12Cl · 3H2O |
7.DD.15 | Kobyashevite | Cu5(SO4)2(OH)6 · 4H2O |
7.DD.15 | Unnamed (Dimorph of Devilline) | CaCu4(SO4)2(OH)6 · 3H2O |
7.DD.20 | Ktenasite | ZnCu4(SO4)2(OH)6 · 6H2O |
7.DD.25 | Christelite | Cu2Zn3(SO4)2(OH)6 · 4H2O |
7.DD.30 | Campigliaite | Mn2+Cu4(SO4)2(OH)6 · 4H2O |
7.DD.30 | Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
7.DD.30 | Orthoserpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
7.DD.30 | Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
7.DD.30 | Niedermayrite | CdCu4(SO4)2(OH)6 · 4H2O |
7.DD.30 | Edwardsite | Cu3Cd2(SO4)2(OH)6 · 4H2O |
7.DD.35 | Carrboydite | (Ni1-xAlx)(SO4)x/2(OH)2 · nH2O |
7.DD.35 | Honessite | (Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2O |
7.DD.35 | Hydrohonessite | (Ni1-xFe3+x)(OH)2(SO4)x/2 · nH2O |
7.DD.35 | Motukoreaite | Mg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O |
7.DD.35 | Mountkeithite | [(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2O |
7.DD.35 | Shigaite | Mn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
7.DD.35 | Wermlandite | Mg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2O |
7.DD.35 | Woodwardite | Cu1-xAlx(OH)2(SO4)x/2 · nH2O |
7.DD.35 | Zincaluminite | Zn6Al6(SO4)2(OH)16 · 5H2O |
7.DD.35 | Hydrowoodwardite | (Cu1-xAlx)(OH)2[SO4]x/2 · nH2O |
7.DD.35 | Zincowoodwardite | Zn1-xAlx(OH)2[SO4]x/2 · nH2O |
7.DD.35 | Natroglaucocerinite | Zn6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
7.DD.35 | Nikischerite | Fe2+6Al3(OH)18[Na(H2O)6](SO4)2 · 6H2O |
7.DD.40 | Isselite | Cu6(SO4)(OH)10 · 5H2O |
7.DD.40 | Lawsonbauerite | (Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2O |
7.DD.40 | Torreyite | (Mg,Mn2+)7◻2Mn2+2Zn4(SO4)2(OH)22 · 8H2O |
7.DD.45 | Mooreite | Mg9◻2Mn2Zn4(SO4)2(OH)26 · 8H2O |
7.DD.45 | Hodgesmithite | (Cu,Zn)6Zn(SO4)2(OH)10 · 3H2O |
7.DD.47 | Lahnsteinite | Zn4(SO4)(OH)6 · 3H2O |
7.DD.50 | Namuwite | Zn4(SO4)(OH)6 · 4H2O |
7.DD.50 | Minohlite | (Cu,Zn)7(SO4)2(OH)10 · 8H2O |
7.DD.52 | Lauraniite | Cu6Cd2(SO4)2(OH)12 · 5H2O |
7.DD.55 | Bechererite | Zn7Cu(OH)13[(SiO(OH)3(SO4)] |
7.DD.60 | Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O |
7.DD.65 | Vonbezingite | Ca6Cu3(SO4)3(OH)12 · 2H2O |
7.DD.70 | Redgillite | Cu6(SO4)(OH)10 · H2O |
7.DD.75 | Chalcoalumite | CuAl4(SO4)(OH)12 · 3H2O |
7.DD.75 | Nickelalumite | NiAl4(SO4)(OH)12(H2O)3 |
7.DD.75 | Kyrgyzstanite | ZnAl4(SO4)(OH)12 · 3H2O |
7.DD.80 | Guarinoite | Zn6(SO4)(OH)10 · 5H2O |
7.DD.80 | Schulenbergite | (Cu,Zn)7(SO4)2(OH)10 · 3H2O |
7.DD.80 | Thérèsemagnanite | NaCo4(SO4)(OH)6Cl · 6H2O |
7.DD.80 | UM1992-30-SO:CCuHZn | (Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2O |
7.DD.85 | Montetrisaite | Cu6(SO4)(OH)10 · 2H2O |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Glaucocerinite
mindat.org URL:
https://www.mindat.org/min-1707.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Glaucocerinite
Reference List:
Hawthorne, Frank C., Jambor, John L., Bladh, Kenneth W., Burke, Ernst A. J., Grice, Joel D., Phillips, Don, Roberts, Andrew C., Schedler, Robert A., E., James (1987) New mineral names. American Mineralogist, 72 (9-10) 1023-1028
Localities for Glaucocerinite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Austria | |
| Exel (1993) |
France | |
| De Ascencao Guedes R. (2001) |
Germany | |
| |
| Bender et al. (1994) |
| Blaß et al. (1995) |
Blaß et al. (1993) | |
| Wittern (2001) |
| Der Aufschluss Vol.55 |
Greece | |
| Lapis et al. (1999) |
LAPIS 24 (7/8) +1 other reference | |
| Centralbl.Min. (1932) +1 other reference |
| Lapis et al. (1999) |
| Krause et al. (2006) |
Italy | |
| Bortolozzi et al. (2018) |
| Mair (1996) |
| Bortolozzi et al. (2013) |
| Biagioni et al. (2013) |
Norway | |
| Raade et al. (1990) |
| Raade et al. (1990) +1 other reference |
USA | |
| Luetcke (n.d.) |
Grant et al. (2005) |
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Hilarion Mine, Kamariza Mines, Agios Konstantinos, Lavrion Mining District, Lavreotiki, East Attica, Attica, Greece