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Fleischerite

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About FleischeriteHide

Mike Fleischer
Formula:
Pb3Ge(SO4)2(OH)6 · 3H2O
Colour:
White, slightly pale rose red
Lustre:
Sub-Vitreous, Silky
Hardness:
2½ - 3
Crystal System:
Hexagonal
Name:
Named in 1960 by Clifford Frondel and Hugo Strunz in honor of Michael Fleischer [February 27, 1908 Bridgeport, Connecticut, USA- September 5, 1998 Chevy Chase, Montgomery County, Maryland, USA]. "Mike" was a mineral chemist for the United States Geological Survey, Reston, Virginia and a long-term editor of "New Mineral Names" for the American Mineralogist. He was co-founder of the International Mineralogical Association.
Fleischerite Group. The Pb analogue of schaurteite. Also the Pb-Ge analogue of genplesite.

Note: most "fleischerite" from Tsumeb is in fact dundasite (see http://www.mindat.org/mesg-7-50534.html).


Classification of FleischeriteHide

Approved
7.DF.25

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations
31.7.6.3

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
7 : (AB)2(XO4)Zq·xH2O
25.7.11

25 : Sulphates
7 : Sulphates of Pb

Physical Properties of FleischeriteHide

Sub-Vitreous, Silky
Transparency:
Transparent
Colour:
White, slightly pale rose red
Streak:
White
Hardness:
2½ - 3 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed

Optical Data of FleischeriteHide

Type:
Uniaxial (+)
RI values:
nω = 1.747 nε = 1.776
Birefringence:
0.029
Max Birefringence:
δ = 0.029
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Optical Extinction:
Parallel
Pleochroism:
Non-pleochroic

Chemical Properties of FleischeriteHide

Formula:
Pb3Ge(SO4)2(OH)6 · 3H2O

Crystallography of FleischeriteHide

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mmc
Setting:
P63/mmc
Cell Parameters:
a = 8.86 Å, c = 10.87 Å
Ratio:
a:c = 1 : 1.227
Unit Cell V:
738.97 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Acicular

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.681 (50)
6.281 (40)
5.438 (30)
3.619 (100)
3.437 (60)
3.138 (40)
2.800 (50)
2.635 (80)
2.214 (60)
1.889 (60)

Type Occurrence of FleischeriteHide

Geological Setting of Type Material:
Oxidation zone of a germanium-bearing Cu, and As-rich polymetallic ore deposit
Associated Minerals at Type Locality:

Synonyms of FleischeriteHide

Other Language Names for FleischeriteHide

Relationship of Fleischerite to other SpeciesHide

Other Members of this group:
DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2OHex. 6 m2 : P62c
GenplesiteCa3Sn(SO4)2(OH)6·3H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
MallestigitePb3Sb5+(SO4)(AsO4)(OH)6 · 3H2OHex. 6 : P63
SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
Unnamed (Ba-Sb Silicate-Sulphate-Hydroxide-Hydrate)Ba3Sb5+[(Si,S)O3(OH)]2(OH,O)6 · 3H2O Trig. 3 : P3

Common AssociatesHide

Associated Minerals Based on Photo Data:
Itoite2 photos of Fleischerite associated with Itoite on mindat.org.
Stottite2 photos of Fleischerite associated with Stottite on mindat.org.
Plumbojarosite1 photo of Fleischerite associated with Plumbojarosite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.DF.Aldridgeite(Cd,Ca)(Cu,Zn)4(SO4)2(OH)6 · 3H2O Mon. 2/m : B2/b
7.DF.AlcaparrosaiteK3Ti4+Fe3+(SO4)4O(H2O)2Mon. 2/m : B2/b
7.DF.05UklonskoviteNaMg(SO4)F · 2H2OMon.
7.DF.10KainiteKMg(SO4)Cl · 3H2OMon. 2/m : B2/m
7.DF.15NatrochalciteNaCu2(SO4)2(OH) · 2H2OMon. 2/m : B2/m
7.DF.20MetasideronatriteNa2Fe(SO4)2(OH) · H2OOrth. mmm (2/m 2/m 2/m)
7.DF.20SideronatriteNa2Fe(SO4)2(OH) · 3H2OOrth. 2 2 2 : P21 21 21
7.DF.25DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2OHex. 6 m2 : P62c
7.DF.25SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
7.DF.25MallestigitePb3Sb5+(SO4)(AsO4)(OH)6 · 3H2OHex. 6 : P63
7.DF.30Slavíkite(H3O+)3Mg6Fe15(SO4)21(OH)18 · 98H2OTrig. 3 : R3
7.DF.35MetavoltineNa6K2FeFe6(SO4)12O2 · 18H2OTrig.
7.DF.40LannoniteMg2Ca4Al4(SO4)8F8 · 24H2O Tet. 4/m : I4/m
7.DF.40VlodavetsiteAlCa2(SO4)2F2Cl · 4H2OTet. 4/m : I4/m
7.DF.45PeretaiteCa(SbO)4(SO4)2(OH)2 · 2H2OMon. 2/m : B2/b
7.DF.50GordaiteNaZn4(SO4)(OH)6Cl · 6H2OTrig. 3 : P3
7.DF.55Clairite(NH4)2Fe3(SO4)4(OH)3 · 3H2OTric.
7.DF.60ArzruniteCu4Pb2(SO4)(OH)4Cl6 · 2H2O (?)Orth.
7.DF.65ElyitePb4Cu(SO4)O2(OH)4 · H2OMon. 2/m
7.DF.70YecoraiteFe3+3Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O
7.DF.75RiomarinaiteBi(SO4)(OH) · H2OMon. 2/m
7.DF.80DukeiteBi3+24Cr6+8O57(OH)6 · 3H2OTrig. 3m : P3 1c
7.DF.85XocolatliteCa2Mn4+2(Te6+O6)2 · H2OMon. 2/m : P2/m

Related Minerals - Dana Grouping (8th Ed.)Hide

31.7.6.1DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2OHex. 6 m2 : P62c
31.7.6.2SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

25.7.1SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
25.7.2Zircosulfate(Zr,Ti)(SO4)2 · 4H2OOrth.
25.7.3AnglesitePbSO4Orth. mmm (2/m 2/m 2/m) : Pnma
25.7.4LanarkitePb2(SO4)OMon. 2/m : B2/m
25.7.5Palmierite(K,Na)2Pb(SO4)2Trig. 3m (3 2/m) : R3m
25.7.6LinaritePbCu(SO4)(OH)2Mon. 2/m : P21/m
25.7.7ElyitePb4Cu(SO4)O2(OH)4 · H2OMon. 2/m
25.7.8ChenitePb4Cu(SO4)2(OH)6Tric. 1 : P1
25.7.9OsarizawaitePb(Al2Cu2+)(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
25.7.10ItoitePb3Ge4+(SO4)2O2(OH)2Orth. mmm (2/m 2/m 2/m) : Pnma
25.7.12Beaverite-(Cu)Pb(Fe3+2Cu)(SO4)2(OH)6Trig. 3m (3 2/m) : R3m
25.7.13PlumbojarositePb0.5Fe3+3(SO4)2(OH)6Trig. 3m (3 2/m) : R3m

Fluorescence of FleischeriteHide

Not fluorescent in UV

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 FleischeriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Frondel, Clifford and Ito, Tei-Ichi (1957) American Mineralogist, 42: 747.
Frondel, Clifford and Strunz, Hugo (1960) Fleischerit und Itoite, zwei neue Germanium-Neues Jahrbuch für Mineralogie, Monatshefte (1960): 132-142.
Fleischer, Michael (1960) Fleischerite, Itoite, New Mineral Names, American Mineralogist (1960): 45: 1313.
Otto, H.H. (1975): Die Kristallstruktur von Fleischerit, Pb3Ge[(OH)6|(SO4)2]•3H2O, sowie kristallchemische Untersuchungen an isotypen Verbindungen. Neues Jahrb. Mineral., Abh., 123, 160-190 (in German with English abs.).

Internet Links for FleischeriteHide

Localities for FleischeriteHide

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.
Bolivia
 
  • Potosí
    • Tomás Frías Province
Econ Geol (1997) 92:623-632; Dill, H.G. (1998): Mineralium Deposita 33, 359-378.
Namibia (TL)
 
  • Oshikoto Region
    • Tsumeb
Neues Jahrb.Min.,Mh.(1960) 132-142
Mineral and/or Locality  
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