Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Nealite

Big Photo

Vrissaki Point slag locality, Vrissaki area, Lavrion District slag localities, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece
© Christian Rewitzer

Show Nealite Photos (14)
Formula:
Pb
 
4
Fe
2+
 
[Cl
 
2
|AsO
 
3
]
 
2
 · 2H
 
2
O
System:TriclinicHardness:4
Name:Named for Neal Yedlin (1908-1977), U. S. Mineralogist, who discovered the mineral.
This page provides mineralogical data about Nealite.

Classification of Nealite

IMA status:Approved
Strunz 8th edition ID:4/J.03-50
Nickel-Strunz 10th (pending) edition ID: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
Dana 8th edition ID:46.1.6.1

46 : ANTIMONITES AND ARSENITES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO3)pZq
Hey's CIM Ref.:22.2.18

22 : Phosphates, Arsenates or Vanadates with other Anions
2 : Phosphates, arsenates or vanadates with chloride
mindat.org URL:http://www.mindat.org/min-2869.html
Please feel free to link to this page.

Type Occurrence of Nealite

Type Locality:Lavrion District slag localities, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece
Year of Discovery:1980

Physical Properties of Nealite

Hardness (Mohs):4

Crystallography of Nealite

Crystal System:Triclinic
Cell Parameters:a = 6.53Å, b = 10.23Å, c = 5.58Å
α = 96.41°, β = 89.52°, γ = 97.82°
Ratio:a:b:c = 0.638 : 1 : 0.545
Unit Cell Volume:V 366.97 ų (Calculated from Unit Cell)

Optical Data of Nealite

Type:Biaxial
Dispersion:relatively weak

Chemical Properties of Nealite

Formula:
Pb
 
4
Fe
2+
 
[Cl
 
2
|AsO
 
3
]
 
2
 · 2H
 
2
O
Essential elements:As, Cl, Fe, O, Pb
All elements listed in formula:As, Cl, Fe, H, O, Pb

Relationship of Nealite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JD.10Seelite
Mg(UO
 
2
)(AsO
 
3
)
 
0.7
(AsO
 
4
)
 
0.3
·7H
 
2
O
4.JD.15Tooeleite
Fe
3+
6
(AsO
 
3
)
 
4
(SO
 
4
)(OH)
 
4
· 4H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
22.2.1Sampleite
NaCaCu
 
5
[Cl|(PO
 
4
)
 
4
] · 5H
 
2
O
22.2.2Lavendulan
NaCaCu
 
5
[Cl|(AsO
 
4
)
 
4
] · 5H
 
2
O
22.2.3Apatite-(CaCl)
Ca
 
5
[Cl|(PO
 
4
)
 
3
]
22.2.4Turneaureite
Ca
 
5
[Cl|(AsO
 
4
,PO
 
4
)
 
3
]
22.2.5Shubnikovite
Ca
 
2
Cu
 
8
[Cl|OH|(AsO
 
4
)
 
6
] · 7H
 
2
O
22.2.6Richelsdorfite
Ca
 
2
Cu
 
5
Sb[Cl|(OH)
 
6
|(AsO
 
4
)
 
4
] · 6H
 
2
O
22.2.7Alforsite
Ba
 
5
[Cl|(PO
 
4
)
 
3
]
22.2.8Morelandite
(Ba,Ca,Pb)
 
5
[Cl|(AsO
 
4
,PO
 
4
)
 
3
]
22.2.9Pyromorphite
Pb
 
5
[Cl|(PO
 
4
)
 
3
]
22.2.10Mimetite
Pb
 
5
[Cl|(AsO
 
4
)
 
3
]
22.2.11Clinomimetite
Pb
 
5
[Cl|(AsO
 
4
)
 
3
]
22.2.12Sahlinite
Pb
 
14
[O
 
9
|(AsO
 
4
)
 
2
|Cl
 
4
]
22.2.13Georgiadèsite
Pb
 
16
[(OH)
 
6
|Cl
 
14
|(AsO
 
4
)
 
4
]
22.2.14Vanadinite
Pb
 
5
[Cl|(VO
 
4
)
 
3
]
22.2.15Kombatite
Pb
 
14
[O
 
9
|(VO
 
4
)
 
2
|Cl
 
4
]
22.2.16Leningradite
PbCu
 
3
[Cl|VO
 
4
]
 
2
22.2.17Hedyphane
Pb
 
3
Ca
 
2
[Cl|(AsO
 
4
)
 
3
]

Other Names for Nealite

Synonyms:
IMA1979-050Nealite-(H2O)
Other Languages:
German:Nealit
Russian:Нилит
Spanish:Nealita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Nealite

Reference List:Dunn & Rouse (1980): Nealite: a new mineral from Laurion Greece.: Mineralogical Record: 11: 299-301.

Guiseppetti et al. (1993): The crystal structure of nealite. Neues Jahrbuch für Mineralogie, Monatshefte 1993, 278-288.

Pertlik & Schnorrer (1993): A re-appraisal of the chemical formula of nealite,Pb4Fe(AsO3)2Cl4.2H2O, on the basis of a crystal structure determination. Mineralogy & Petrology 48, 193-200.

American Mineralogist (1994): 79: 391.

Articles/Blogs about Nealite

Internet Links for Nealite

Search Engines:
  • Look for Nealite on Google
  • Look for Nealite images on Google
    • External Links:
  • Look for Nealite on Webmineral
  • Look for Nealite on Athena Mineralogy
  • Look for Nealite on Wikipedia
  • Look for Nealite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Nealite in the Natural History Museum (London) online catalogue
  • Nealite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Lapis Mineral Magazin
  • High-end worldwide specimens & outstanding customer service
  • The Arkenstone - Fine Minerals
  • Buy Fine Minerals from mineralsweb.com
  • Buy minerals from Mineralium.com
  • Buy from David K Joyce minerals
  • Fabre Minerals - search for Nealite specimens
  • Buy Minerals and Crystals from Crystalarium.com
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Fine Minerals from Dan Weinrich Minerals
  • Rare and Unusual minerals at Mineralogical Research Company
  • Wendel Minerals - Auktion & Shop
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Nealite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    France
     
    • Brittany
      • Côtes-d'Armor
        • Callac
          • Carnoët
            • Menez-Plom
    		P. Le Roch collection
    Germany
     
    • Lower Saxony
      • Harz Mts
        • Goslar
          • Astfeld
    		No reference listed
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
    		Min.Rec.(1980) 11, 299-301; Gelaude, Piet, van Kalmthout, Piet and Rewitzer, Christian, Laurion: The Minerals in the Ancient Slags
          • 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
          • 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
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.