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Lahnsteinite

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About LahnsteiniteHide

Formula:
Zn4(SO4)(OH)6 · 3H2O
Colour:
colorless
Hardness:
Specific Gravity:
2.98
Crystal System:
Triclinic
Name:
It was named after the town of Lahnstein, which is close to the Friedrichssegen Mine.
Chemically related to namuwite and osakaite; may originate as a dehydration product of osakaite. Natural analogue of trihydrate zinc sulfate.


Classification of LahnsteiniteHide

Approved
Approval Year:
2012

Physical Properties of LahnsteiniteHide

Colour:
colorless
Hardness:
1½ on Mohs scale
Tenacity:
Flexible
Cleavage:
Perfect
perfect micalike cleavage parallel to (001) and imperfect cleavage in a few directions nearly perpendicular to (001).
Density:
2.98(2) g/cm3 (Measured)    2.995 g/cm3 (Calculated)

Optical Data of LahnsteiniteHide

Type:
Biaxial (-)
RI values:
nα = 1.568(2) nβ = 1.612(2) nγ = 1.613(2)
2V:
Measured: 18° (3), Calculated: 17°
Max Birefringence:
δ = 0.045
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of LahnsteiniteHide

Formula:
Zn4(SO4)(OH)6 · 3H2O
IMA Formula:
Zn4(SO4)(OH)6 · 3H2O

Crystallography of LahnsteiniteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 8.3125(6) Å, b = 14.545(1) Å, c = 18.504(2) Å
α = 89.71(1)°, β = 90.05(1)°, γ = 90.13(1)°
Ratio:
a:b:c = 0.572 : 1 : 1.272
Unit Cell V:
2,237.20 ų (Calculated from Unit Cell)
Z:
8

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.30 (100)
4.175 (18)
3.476 (19)
3.290 (19)
2.723 (57)
2.624 (36)
2.503 (35)
1.574 (25)

Type Occurrence of LahnsteiniteHide

General Appearance of Type Material:
tabular crystals up to 0.7 mm across
Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4252/1
Geological Setting of Type Material:
Oxidation zone of quartz-siderite veins.
Associated Minerals at Type Locality:

Synonyms of LahnsteiniteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Gypsum2 photos of Lahnsteinite associated with Gypsum on mindat.org.
Pyrite2 photos of Lahnsteinite associated with Pyrite on mindat.org.
Devilline1 photo of Lahnsteinite associated with Devilline on mindat.org.
Ktenasite1 photo of Lahnsteinite associated with Ktenasite on mindat.org.

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 LahnsteiniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bear, I.J., Grey, I.E., Madsen, I.C., Newnham, I.E., Rogers, L.J. (1986): Structures of the basic zinc sulfates 3Zn(OH)2•ZnSO4•mH2O, m = 3 and 5. Acta Crystallographica, B42, 32-39.
Chukanov, N.V., Rastsvetaeva, R.K., Aksenov, S.M., Pekov, I.V., Belakovskiy, D.I. , Blass, G., Möhn, G. (2012) Lahnsteinite, IMA 2012-002. CNMNC Newsletter No. 13, June 2012, page 813; Mineralogical Magazine, 76, 807-817.
Rastsvetaeva, R.K., Aksenov, S.M.,Chukanov, N.V., and I. A. Verin (2012): Crystal Structure of a New Mineral Lahnsteinite, Zn4(SO4)(OH)6 · 3H2O. Kristallografia 57(5), 820-824.
Rastsvetaeva, R.K., Aksenov, S.M.,Chukanov, N.V., and I. A. Verin (2012): Crystal Structure of a New Mineral Lahnsteinite, Zn4(SO4)(OH)6 · 3H2O. Crystallography Reports 57(5), 737-741. [English translation]
N.V. Chukanov, R.K. Rastsvetaeva, S.M. Aksenov, I.V. Pekov, D.I. Belakovskiy, G. Blass, and G. Mohn (2013) Lahnsteinite, Zn4(SO4)(OH)6•3H2O, a new mineral species from the Friederichssegen Mine, Germany. Zap. Ross. Mineral. Obshch., 142, 39-46 (in Russian, English abstract). [Engl. transl.: Geology of Ore Deposits, 55, 663-668.]

Internet Links for LahnsteiniteHide

Localities for LahnsteiniteHide

ⓘ - 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.
Germany (TL)
 
  • Rhineland-Palatinate
    • Ahrweiler
      • Lahn valley
        • Bad Ems District
          • Frücht
Chukanov, N.V., Rastsvetaeva, R.K., Aksenov, S.M., Pekov, I.V., Belakovskiy, D.I. , Blass, G., Möhn, G. (2012) Lahnsteinite, IMA 2012-002. CNMNC Newsletter No. 13, June 2012, page 813; Mineralogical Magazine, 76, 807-817; N.V. Chukanov, R.K. Rastsvetaeva, S.M. Aksenov, I.V. Pekov, D.I. Belakovskiy, G. Blass, and G. Mohn (2013) Lahnsteinite, Zn4(SO4)(OH)6•3H2O, a new mineral species from the Friederichssegen Mine, Germany. Zap. Ross. Mineral. Obshch., 142, 39-46 (in Russian, English abstract). [Engl. transl.: Geology of Ore Deposits, 55, 663-668.]
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium; Lavreotiki Municipality)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
          • Kamariza Mines (Kamareza Mines)
            • Hilarion area
Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German).
Originally obtained as "goslarite"; visually identical material was SXRD-analysed by Uwe Kolitsch. For details see Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German).
USA
 
  • California
    • Inyo Co.
      • Inyo Mts (Inyo Range)
        • Malpais Mesa
Kampf, A. R., Mills, S. J., & Nash, B. P. (2016). PREPUBLICATION: Pauladamsite, Cu4 (SeO3)(SO4)(OH) 4· 2H2O, a new mineral from the Santa Rosa mine, Darwin district, California, USA. Mineralogical Magazine.; Paul M. Adams (2017) The Santa Rosa mine, Inyo County, California. Minerlogical Record 48:755-777
Mineral and/or Locality  
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