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Nealite

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Leo Neal Yedlin
Formula:
Pb4Fe2+(As3+O3)2Cl4 · 2H2O
Colour:
Yellow brown to orange brown
Lustre:
Adamantine, Vitreous, Sub-Vitreous
Hardness:
4
Specific Gravity:
5.89 (Calculated)
Crystal System:
Triclinic
Name:
Named by Pete Dunn and Roland Rouse in 1980 for Leo Neal Yedlin (20 March 1908, Brooklyn, NY, USA - 7 October 1977, New Haven, CT, USA), American lawyer, author, and prominent mineral collector, who discovered the mineral. The mineral yedlinite is also named in his honor.
Bladed yellow brown to orange brown crystals.


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Classification of NealiteHide

Approved
4.JD.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
D : Arsenites, antimonites, bismuthites; with additional anions, with H2O
46.1.6.1

46 : ANTIMONITES AND ARSENITES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO3)pZq
22.2.18

22 : Phosphates, Arsenates or Vanadates with other Anions
2 : Phosphates, arsenates or vanadates with chloride

Pronounciation of NealiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of NealiteHide

Adamantine, Vitreous, Sub-Vitreous
Transparency:
Transparent
Colour:
Yellow brown to orange brown
Streak:
Pale yellow to pale orange
Hardness:
Tenacity:
Very brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
5.89 g/cm3 (Calculated)

Optical Data of NealiteHide

Type:
Biaxial
Dispersion:
relatively weak
Pleochroism:
Non-pleochroic

Chemical Properties of NealiteHide

Formula:
Pb4Fe2+(As3+O3)2Cl4 · 2H2O
IMA Formula:
Pb4Fe(AsO3)2Cl4 · 2H2O

Crystallography of NealiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 6.53 Å, b = 10.23 Å, c = 5.58 Å
α = 96.41°, β = 89.52°, γ = 97.82°
Ratio:
a:b:c = 0.638 : 1 : 0.545
Unit Cell V:
366.97 ų (Calculated from Unit Cell)
Z:
1

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.09 (60)
6.48 (80)
4.24 (70)
3.92 (50)
3.54 (100)
3.25 (60)
2.97 (50)
2.78 (60)
Comments:
33-0755

Type Occurrence of NealiteHide

Geological Setting of Type Material:
Ancient refinery slags which interacted with sea water

Synonyms of NealiteHide

Other Language Names for NealiteHide

German:Nealit
Russian:Нилит
Spanish:Nealita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Paralaurionite8 photos of Nealite associated with Paralaurionite on mindat.org.
Laurionite5 photos of Nealite associated with Laurionite on mindat.org.
Cerussite3 photos of Nealite associated with Cerussite on mindat.org.
Phosgenite3 photos of Nealite associated with Phosgenite on mindat.org.
Georgiadèsite3 photos of Nealite associated with Georgiadèsite on mindat.org.
Gypsum1 photo of Nealite associated with Gypsum on mindat.org.
Goethite1 photo of Nealite associated with Goethite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.JD.10SeeliteMg(UO2)(As3+O3)0.7(AsO4)0.3 · 7H2OMon.
4.JD.15TooeleiteFe3+6(As3+O3)4(SO4)(OH)4 · 4H2OMon. 2/m : B2/m

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

46.1.6.1MagnussoniteMn10As6O18(OH,Cl)2Iso. m3m (4/m 3 2/m) : Ia3d
46.1.6.2UM1984-09-AsO:ClHMnMn10As6O18(OH)ClTet. 4/mmm (4/m 2/m 2/m) : I41/acd

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

22.2.1SampleiteNaCaCu5(PO4)4Cl · 5H2OOrth. mmm (2/m 2/m 2/m) : Cmmm
22.2.2LavendulanNaCaCu5(AsO4)4Cl · 5H2OMon. 2/m
22.2.3ChlorapatiteCa5(PO4)3ClHex. 6/m : P63/m
22.2.4TurneaureiteCa5(AsO4)3ClHex.
22.2.5ShubnikoviteCa2Cu8(AsO4)6(OH)Cl · 7H2O
22.2.6RichelsdorfiteCa2Cu5Sb(AsO4)4(OH)6Cl · 6H2OMon. 2/m
22.2.7AlforsiteBa5(PO4)3ClHex. 6/m : P63/m
22.2.8MorelanditeCa2Ba3(AsO4)3Cl
22.2.9PyromorphitePb5(PO4)3ClHex. 6/m : P63/m
22.2.10MimetitePb5(AsO4)3ClHex. 6/m : P63/m
22.2.11Mimetite-MPb5(AsO4)3ClMon. 2/m : P21/b
22.2.12SahlinitePb14(AsO4)2O9Cl4Mon.
22.2.13GeorgiadèsitePb4(AsO3)Cl4(OH)Mon.
22.2.14VanadinitePb5(VO4)3ClHex. 6/m : P63/m
22.2.15KombatitePb14(VO4)2O9Cl4Mon.
22.2.16LeningraditePbCu3(VO4)2ClOrth. mmm (2/m 2/m 2/m) : Ibam
22.2.17HedyphaneCa2Pb3(AsO4)3ClHex. 6/mmm (6/m 2/m 2/m) : P63/mmc

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 NealiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dunn, P.J., Rouse, R.C. (1980) Nealite: a new mineral from Laurion Greece. Mineralogical Record: 11: 299-301.
Guiseppetti, G., Mazzi, F., Tadini, C. (1993) The crystal structure of nealite. Neues Jahrbuch für Mineralogie, Monatshefte: 1993: 278-288.
Pertlik, F., Schnorrer, G. (1993) A re-appraisal of the chemical formula of nealite, Pb4Fe(AsO3)2Cl4.2H2O, on the basis of a crystal structure determination. Mineralogy and Petrology: 48: 193-200.
Jambor, J.L., Grew, E.S. (1994) New mineral names. American Mineralogist: 79: 387-391.

Internet Links for NealiteHide

Localities for NealiteHide

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.
France
 
  • Brittany
    • Côtes-d'Armor
      • Callac
        • Carnoët
          • Menez-Plom
P. Le Roch collection
Germany
 
  • Lower Saxony
    • Harz
      • Goslar
        • Astfeld
No reference listed
Greece (TL)
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
Min.Rec.(1980) 11, 299-301; Schnorrer-Köhler, G., Standfuss, K. & Standfuss, L. (1981): Neufunde von Mineralen aus den antiken Bleischlacken Laurions. Der Aufschluss, 32, 165-169.; Gelaude, Piet, van Kalmthout, Piet and Rewitzer, Christian (1996): Laurion: The Minerals in the Ancient Slags
        • Lavrion (Laurion; Laurium)
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 (II). Mineralien-Welt 25 (2), 82-95 (in German).
        • Oxygon area
No reference listed
        • Passa Limani area
Gelaude, Piet, van Kalmthout, Piet, and Rewitzer, Christian (1996) Laurion: The Minerals of the Ancient Slags, Janssen Print, Nijmegen, The Netherlands
        • Sounion area
Fritz Schreiber collection (SXRD-analysed by Uwe Kolitsch)
Bonifazi Marco, Marius Utens and Fritz Schreiber collections; van Kalmthout, P. (2012): De slakkenmineralen van Lavrion (Gr.) - Ontwikkelingen na 1996, inclusief een archeologische ontdekking. GEA, 45 (1), 14-19 (in Dutch).
        • Thorikos area
Gelaude, Piet, van Kalmthout, Piet and Rewitzer, Christian (1996) Laurion: The Minerals in the Ancient Slags, Janssen Print, Nijmegen, The Netherlands
        • Vrissaki area
Gelaude, Piet, van Kalmthout, Piet, and Rewitzer, Christian (1996) Laurion: The Minerals in the Ancient Slags, Janssen Print, Nijmegen, The Netherlands
Italy
 
  • Liguria
    • Genova Province
      • Genova
        • Varenna Valley
Rivista Mineralogica Italiana, 22 (3), 39-41.
  • Tuscany
    • Livorno Province
      • Piombino
Muenchener Micromounter-Lithothek
Poland
 
  • Upper Silesia (Śląskie)
Warchulski, R., Gawęda, A., Szopa, K. (2014): Secondary phases from the Zn-Pb smelting slags from Katowice – Piekary Śląskie area, Upper Silesia, Poland: a SEM – XRD overview. Mineralogia Special Papers: 42: 110-111
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