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Schulenbergite

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Formula:
(Cu,Zn)7(SO4)2(OH)10 · 3H2O
The Cu:Zn ratio may vary from about 4:3 to 6:1.
Formula previously given with "...(SO4,CO3)...".
System:
Trigonal
Colour:
Light blue to blue-green.
Lustre:
Pearly
Hardness:
2
Name:
Named for the Type Locality - Oberschulenberg, Harz, Germany
Very close to hodgesmithite (also trigonal and possibly sharing the space group), in which one of the seven metal sites is Zn-dominant. Chemically and structurally related to minohlite. See also 'UM1992-30-SO:CCuHZn' (the Zn analogue of schulenbergite) and Unnamed Cu-Zn Sulphate (of Schmutz et al.).

May appear visually similar to namuwite.




Classification of Schulenbergite

Approved
7.DD.80

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
31.1.6.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO4)pZq·xH2O, where m:p > 6:1
12.2.10

12 : Carbonates with other anions
2 : Carbonates with sulphate

Type Occurrence of Schulenbergite

Physical Properties of Schulenbergite

Pearly
Colour:
Light blue to blue-green.
Streak:
Pale blue-green.
Hardness (Mohs):
2

Crystallography of Schulenbergite

Crystal System:
Trigonal
Cell Parameters:
a = 8.24Å, c = 7.18Å
Ratio:
a:c = 1 : 0.871
Unit Cell Volume:
V 47 ų
Z:
1
Comment:
Space group P-3 (this is given by Mumme et al., 1994) or P3. Range of cell parameters: a = 8.211–8.249 c = 7.106–7.183 A.
X-Ray Powder Diffraction Data:
d-spacingIntensity
7.186 (100)
3.581 (40)
3.209 (30)
2.700 (80)
2.527 (80)
2.157 (30)
1.559 (30)

Optical Data of Schulenbergite

Type:
Uniaxial (-)
RI values:
nω = 1.640 nε = 1.623
Max Birefringence:
δ = 0.017
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of Schulenbergite

Formula:
(Cu,Zn)7(SO4)2(OH)10 · 3H2O

The Cu:Zn ratio may vary from about 4:3 to 6:1.
Formula previously given with "...(SO4,CO3)...".
All elements listed in formula:

Relationship of Schulenbergite to other Species

7.DD.05FelsőbányaiteAl4(SO4)(OH)10 · 4H2O
7.DD.10LangiteCu4(SO4)(OH)6 · 2H2O
7.DD.10PosnjakiteCu4(SO4)(OH)6 · H2O
7.DD.10WroewolfeiteCu4(SO4)(OH)6 · 2H2O
7.DD.15SpangoliteCu6Al(SO4)(OH)12Cl · 3H2O
7.DD.20KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2O
7.DD.25ChristeliteCu2Zn3(SO4)2(OH)6 · 4H2O
7.DD.30CampigliaiteMn2+Cu4(SO4)2(OH)6 · 4H2O
7.DD.30DevillineCaCu4(SO4)2(OH)6 · 3H2O
7.DD.30OrthoserpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
7.DD.30SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
7.DD.30NiedermayriteCdCu4(SO4)2(OH)6 · 4H2O
7.DD.30EdwardsiteCu3Cd2(SO4)2(OH)6·4H2O
7.DD.35Carrboydite[(Ni1-xAlx)(OH)2][SO4]x/2 · nH2O
7.DD.35Glaucocerinite(Zn1-xAlx)(OH)2(SO4)x/2 · nH2O
7.DD.35Honessite(Ni1-xFex3+)(OH)2[SO4]x/2 · nH2O
7.DD.35Hydrohonessite(Ni1-xFex3+)(OH)2[SO4]x/2 · nH2O
7.DD.35MotukoreaiteMg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O
7.DD.35Mountkeithite[(Mg1-xFex3+)(OH)2][SO4]x/2 · nH2O
7.DD.35ShigaiteMn6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O
7.DD.35WermlanditeMg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2O
7.DD.35WoodwarditeCu1-xAlx(OH)2[SO4]x/2 · nH2O
7.DD.35ZincaluminiteZn6Al6(SO4)2(OH)16 · 5H2O
7.DD.35Hydrowoodwardite(Cu1-xAlx)(OH)2[SO4]x/2 · nH2O
7.DD.35ZincowoodwarditeZn1-xAlx(OH)2[SO4]x/2 · nH2O
7.DD.35NatroglaucoceriniteZn6Al3(OH)18[Na(H2O)6](SO4)2•6H2O
7.DD.35NikischeriteFe62+Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O
7.DD.40Lawsonbauerite(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2O
7.DD.40Torreyite(Mg,Mn2+)72Mn22+Zn4(SO4)2(OH)22 · 8H2O
7.DD.45MooreiteMg92Mn2Zn4(SO4)2(OH)26 · 8H2O
7.DD.50NamuwiteZn4(SO4)(OH)6 · 4H2O
7.DD.55BechereriteZn7Cu(OH)13[(SiO(OH)3(SO4)]
7.DD.60Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2O
7.DD.65VonbezingiteCa6Cu3(SO4)3(OH)12 · 2H2O
7.DD.70RedgilliteCu6(SO4)(OH)10 · H2O
7.DD.75ChalcoalumiteCuAl4(SO4)(OH)12 · 3H2O
7.DD.75Nickelalumite(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2O
7.DD.75KyrgyzstaniteZnAl4(SO4)(OH)12·3H2O
7.DD.80GuarinoiteZn6(SO4)(OH)10 · 5H2O
7.DD.80ThérèsemagnaniteNaCo4(SO4)(OH)6Cl·6H2O
7.DD.80UM1992-30-SO:CCuHZn(Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2O
7.DD.85MontetrisaiteCu6(SO4)(OH)10 · 2H2O
12.2.1BurkeiteNa6(CO3)(SO4)2
12.2.2HanksiteNa22K(SO4)9(CO3)2Cl
12.2.3TychiteNa6Mg2(CO3)4(SO4)
12.2.4MotukoreaiteMg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2O
12.2.5FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
12.2.6NakauriiteCu8(SO4)4(CO3)(OH)6 · 48H2O
12.2.7CarbonatecyanotrichiteCu4Al2(CO3,SO4)(OH)12 · 2H2O
12.2.8RapidcreekiteCa2(SO4)(CO3) · 4H2O
12.2.9TatarskiteCa6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2O
12.2.11LeadhillitePb4(CO3)2(SO4)(OH)2
12.2.12MacphersonitePb4(CO3)2(SO4)(OH)2
12.2.13SusannitePb4(CO3)2(SO4)(OH)2
12.2.14WherryitePb7Cu2(SO4)4(SiO4)2(OH)2
12.2.15CaledonitePb5Cu2(SO4)3(CO3)(OH)6
12.2.16NasledovitePbMn3Al4(CO3)4(SO4)O5 · 5H2O
12.2.17JouravskiteCa3Mn4+(SO4)(CO3)(OH)6 · 12H2O
12.2.18SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
12.2.19ManganotychiteNa6Mn2(CO3)4(SO4)
12.2.20HauckiteFe33+(Mg,Mn2+)24Zn18(SO4)4(CO3)2(OH)81
12.2.21ParaotwayiteNi(OH)2-x(SO4,CO3)0.5x
12.2.22Carrboydite[(Ni1-xAlx)(OH)2][SO4]x/2 · nH2O
12.2.23Mountkeithite[(Mg1-xFex3+)(OH)2][SO4]x/2 · nH2O
12.2.24CamérolaiteCu6Al3(OH)18(H2O)2[Sb(OH)6](SO4)

Other Names for Schulenbergite

Name in Other Languages:

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.

References for Schulenbergite

Reference List:
von Hodenberg, R., Krause, W. and Tauber, H. (1984): Schulenbergit, (CuZn)4(SO4,CO3)2(OH)10*3H2O, ein neues Mineral. Neues Jahrbuch für Mineralogie, Monatshefte (1984): 17-24. (in German).

American Mineralogist (1985): 70: 438.

Mumme, W. G., Sarp, H., Chiappero, P. J. (1994): A note on the crystal structure of schulenbergite. Archs. Sci. Genève 47, 117-124.

Ohnishi, M., Kusachi, I., Kobayashi, S. and Yamakawa, J. (2007): Mineral chemistry of schulenbergite and its Zn-dominant analogue from the Hirao mine, Osaka, Japan. J. Mineral. Petrol. Sci. 102, 233-239.

Internet Links for Schulenbergite

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http://www.mindat.org/min-3589.html
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Localities for Schulenbergite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Mineral and/or Locality  
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