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Niedermayrite

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Dr. Gerhard Niedermayr in the field
Formula:
CdCu4(SO4)2(OH)6 · 4H2O
Colour:
Bluish green, pale bluish
Lustre:
Vitreous
Specific Gravity:
3.292 (Calculated)
Crystal System:
Monoclinic
Name:
Named after HR Dr Gerhard Niedermayr (16 June 1941 - 17 July 2015), mineralogist and geologist, Naturhistorisches Museum, Vienna, Austria, compiler of the regional mineralogy of the eastern Alps. Known for his extensive work on Alpine-type minerals, the mineralogy of Carinthia, quartz and gemstones.
Structurally related to christelite and campigliaite.


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Classification of NiedermayriteHide

Approved
7.DD.30

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

Physical Properties of NiedermayriteHide

Vitreous
Colour:
Bluish green, pale bluish
Streak:
White
Hardness Data:
Could not be measured
Tenacity:
Brittle
Cleavage:
Perfect
on {010}
Density:
3.292 g/cm3 (Calculated)

Optical Data of NiedermayriteHide

Type:
Biaxial (-)
RI values:
nα = 1.599 - 1.619 nβ = 1.642 nγ = 1.661
2V:
Measured: 84° , Calculated: 64° to 82°
Max Birefringence:
δ = 0.062
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v strong
Pleochroism:
Non-pleochroic

Chemical Properties of NiedermayriteHide

Formula:
CdCu4(SO4)2(OH)6 · 4H2O
IMA Formula:
Cu4Cd(SO4)2(OH)6 · 4H2O

Crystallography of NiedermayriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Setting:
P21/m
Cell Parameters:
a = 5.543(1) Å, b = 21.995(4) Å, c = 6.079(1) Å
β = 92.04(3)°
Ratio:
a:b:c = 0.252 : 1 : 0.276
Unit Cell V:
740.7 ų
Z:
2
Morphology:
The predominant crystal form is {010}, additional forms are {100}, {001} as well as unindexed prisms.
Twinning:
No clear twinning was observed.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.02 (90)
5.874 (20)
5.496 (100)
5.322 (25)
4.079 (50)
3.660 (20)
3.437 (30)
3.243 (40)
2.470 (30)
2.425 (20)
2.205 (20)
1.897 (20)

Type Occurrence of NiedermayriteHide

General Appearance of Type Material:
Tiny euhedral plates, commonly intergrown as green crusts up to several cm2 in size.
Place of Conservation of Type Material:
Institute of Mineralogy and Crystallography, University of Vienna, Vienna and Department of Mineralogy and Petrography, Natural History Museum, Vienna, Austria.
Associated Minerals at Type Locality:

Synonyms of NiedermayriteHide

Other Language Names for NiedermayriteHide

Relationship of Niedermayrite to other SpeciesHide

Structurally related to group(s):

Common AssociatesHide

Associated Minerals Based on Photo Data:
Ktenasite3 photos of Niedermayrite associated with Ktenasite on mindat.org.
Drobecite2 photos of Niedermayrite associated with Drobecite on mindat.org.
Conichalcite2 photos of Niedermayrite associated with Conichalcite on mindat.org.
Antlerite1 photo of Niedermayrite associated with Antlerite on mindat.org.
Calcite1 photo of Niedermayrite associated with Calcite on mindat.org.
Chalcanthite1 photo of Niedermayrite associated with Chalcanthite on mindat.org.
Anglesite1 photo of Niedermayrite associated with Anglesite on mindat.org.
Keyite1 photo of Niedermayrite associated with Keyite on mindat.org.
Aldridgeite1 photo of Niedermayrite associated with Aldridgeite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.DD.05FelsőbányaiteAl4(SO4)(OH)10 · 4H2OMon. 2 : P21
7.DD.10LangiteCu4(SO4)(OH)6 · 2H2OMon. m
7.DD.10PosnjakiteCu4(SO4)(OH)6 · H2OMon. m : Pm
7.DD.10WroewolfeiteCu4(SO4)(OH)6 · 2H2OMon. m : Pm
7.DD.15SpangoliteCu6Al(SO4)(OH)12Cl · 3H2OTrig. 3m : P3 1c
7.DD.20KtenasiteZn(Cu,Zn)4(SO4)2(OH)6 · 6H2OMon.
7.DD.25ChristeliteCu2Zn3(SO4)2(OH)6 · 4H2OTric.
7.DD.30CampigliaiteMn2+Cu4(SO4)2(OH)6 · 4H2OMon.
7.DD.30DevillineCaCu4(SO4)2(OH)6 · 3H2OMon. 2/m : P21/b
7.DD.30OrthoserpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OOrth. mm2 : Pca21
7.DD.30SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2OMon. 2/m : B2/b
7.DD.30EdwardsiteCu3Cd2(SO4)2(OH)6·4H2O Mon. 2/m : P21/b
7.DD.35Carrboydite[(Ni1-xAlx)(OH)2][SO4]x/2 · nH2OHex.
7.DD.35Glaucocerinite(Zn1-xAlx)(OH)2(SO4)x/2 · nH2OHex.
7.DD.35Honessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35Hydrohonessite(Ni1-xFe3+x)(OH)2[SO4]x/2 · nH2OHex.
7.DD.35MotukoreaiteMg6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : R3m
7.DD.35Mountkeithite[(Mg1-xFe3+x)(OH)2][SO4]x/2 · nH2OHex.
7.DD.35ShigaiteMn6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2OTrig.
7.DD.35WermlanditeMg7Al2(OH)18[Ca(H2O)6][SO4]2 · 6H2OTrig. 3m (3 2/m) : P3c1
7.DD.35WoodwarditeCu1-xAlx(OH)2[SO4]x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincaluminiteZn6Al6(SO4)2(OH)16 · 5H2O
7.DD.35Hydrowoodwardite(Cu1-xAlx)(OH)2[SO4]x/2 · nH2OTrig. 3m (3 2/m) : R3m
7.DD.35ZincowoodwarditeZn1-xAlx(OH)2[SO4]x/2 · nH2OTrig.
7.DD.35NatroglaucoceriniteZn6Al3(OH)18[Na(H2O)6](SO4)2•6H2OHex.
7.DD.35NikischeriteFe2+6Al3(OH)18[Na(H2O)6][SO4]2 · 6H2OTrig.
7.DD.40Lawsonbauerite(Mn2+,Mg)9Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.40Torreyite(Mg,Mn2+)72Mn2+2Zn4(SO4)2(OH)22 · 8H2OMon. 2/m : P21/b
7.DD.45MooreiteMg92Mn2Zn4(SO4)2(OH)26 · 8H2OMon. 2/m : P2/b
7.DD.50NamuwiteZn4(SO4)(OH)6 · 4H2OTrig. 3 : P3
7.DD.55BechereriteZn7Cu(OH)13[(SiO(OH)3(SO4)]Trig. 3 : P3
7.DD.60Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2OMon. 2/m
7.DD.65VonbezingiteCa6Cu3(SO4)3(OH)12 · 2H2OMon. 2/m : P21/b
7.DD.70RedgilliteCu6(SO4)(OH)10 · H2OMon. 2/m : P21/b
7.DD.75ChalcoalumiteCuAl4(SO4)(OH)12 · 3H2OMon. 2 : P21
7.DD.75Nickelalumite(Ni,Cu)Al4(SO4,(NO3)2)(OH)12 · 3H2OMon.
7.DD.75KyrgyzstaniteZnAl4(SO4)(OH)12·3H2OMon.
7.DD.80GuarinoiteZn6(SO4)(OH)10 · 5H2OHex.
7.DD.80Schulenbergite(Cu,Zn)7(SO4)2(OH)10 · 3H2OTrig.
7.DD.80ThérèsemagnaniteNaCo4(SO4)(OH)6Cl·6H2OHex.
7.DD.80UM1992-30-SO:CCuHZn(Zn,Cu)7(SO4,CO3)2(OH)10 · 3H2OTrig. 3 : P3
7.DD.85MontetrisaiteCu6(SO4)(OH)10 · 2H2OOrth. mm2 : Cmc21

Fluorescence of NiedermayriteHide

Non-fluorescent.

Other InformationHide

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 NiedermayriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Giester, G., Rieck, B. and Brandstätter, F. (1998): Niedermayrite, Cu4Cd(SO4)2(OH)6•4H2O, a new mineral from the Lavrion Mining District, Greece. Mineralogy and Petrology: 63: 19-34.

Internet Links for NiedermayriteHide

Localities for NiedermayriteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • New South Wales
    • Yancowinna Co.
      • Broken Hill
Peter Elliot pers. comm.
Bolivia
 
  • La Paz Department
    • Aroma Province
EDS analysis by Joy Desor, http://www.mindat.org/forum.php?read,11,359266,359548#msg-359548
Joy Desor specimen. EDS analyzed.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
          • Kamariza Mines (Kamareza Mines)
            • Hilarion area
Fritz Schreiber Collection
        • Lavrion (Laurion; Laurium)
Giester, G., Rieck, B. and Brandstätter, F. (1998): Niedermayrite, Cu4Cd(SO4)2(OH)6•4H2O, a new mineral from the Lavrion Mining District, Greece. Mineral. Petrol., 63, 19-34.; Hanke, H. & Jahn, S. (1998): Niedermayrit. Mineralien-Welt, 9 (5), 12; Hanke, H. (1998): Niedermayrit, Cu4Cd(SO4)2(OH)6•4H2O, ein neues Mineral aus dem Bergbaugebiet Laurion, Griechenland. Mineralien-Welt, 9 (5), 13.
        • Plaka
          • Villia
Lapis, 28/5 (May 2003)
        • Sounion area
          • Sounion Mines
Branko Rieck collection
USA
 
  • Utah
    • Tooele Co.
      • Oquirrh Mts
        • Ophir District
          • Ophir Hill area
Twenty-seventh Annual New Mexico Mineral Sympsium (2006) abs.; Rocks & Minerals 83:1 pp 52-62
Mineral and/or Locality  
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