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Seelite

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About SeeliteHide

Formula:
Mg(UO2)(As3+O3)0.7(AsO4)0.3 · 7H2O
Colour:
Canary yellow to bright yellow
Lustre:
Vitreous
Crystal System:
Monoclinic
Name:
Named in honor of Paul Seel (8 May 1904, Silesia, Germany - April 1982, Bala Cynwyd, Pennsylvania, USA) and Hildegard (Hilde) Schumann Seel (24 December 1901, Germany - 17 August 1987), husband and wife micro-mineral collectors from Philadelphia, Pennsylvania, USA.
Chemically, seelite is a Mg-dominant, arsenate-bearing analogue of dymkovite.


Classification of SeeliteHide

Approved
4.JD.10

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
46.2.9.1

46 : ANTIMONITES AND ARSENITES CONTAINING HYDROXYL OR HALOGEN
2 : Miscellaneous

Physical Properties of SeeliteHide

Vitreous
Transparency:
Transparent
Colour:
Canary yellow to bright yellow

Chemical Properties of SeeliteHide

Formula:
Mg(UO2)(As3+O3)0.7(AsO4)0.3 · 7H2O
IMA Formula:
Mg(UO2)2(AsO3,AsO4)2 · 7H2O

Crystallography of SeeliteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 18.2 Å, b = 7.06 Å, c = 6.66 Å
β = 99.65°
Ratio:
a:b:c = 2.578 : 1 : 0.943
Unit Cell V:
843.65 ų (Calculated from Unit Cell)

Type Occurrence of SeeliteHide

Other Language Names for SeeliteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Seelite associated with CopperCu

Related Minerals - Nickel-Strunz GroupingHide

4.JD.05NealitePb4Fe2+(As3+O3)2Cl4 · 2H2OTric. 1 : P1
4.JD.15TooeleiteFe3+6(As3+O3)4(SO4)(OH)4 · 4H2OMon. 2/m : B2/m

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 SeeliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Walenta, K. (1958) Die sekundären Uranmineralien des Schwarzwaldes. Jahreshefte des geologischen Landesamtes in Baden-Württemberg, 3, 17-51. [as Uranmineral F]
Walenta (1972) [as Uranmineral F]
Bariand, P., Bachet, B., Brassy, C., Medenbach, O., Deliens, M., Piret, P. (1993) Seelite - a new uranium mineral from the Talmessi mine, Iran, and Rabejac, France, The Mineralogical Record: 24: 463-467.
Jambor, J.L., Puziewicz, J. (1993) New mineral names. American Mineralogist: 78: 450-455.
Bachet, B., Brassy, C., Cousson, A. (1991) Structure of Mg[(UO2)(As(O4)]2·4H2O.
Acta Crystallographica: C47: 2013-2015 (in French).
Piret, P., Piret-Meunier, J. (1994) Structure de la seelite de Rabejac (France). European Journal of Mineralogy: 6: 673-677.
Jambor, J.L., Roberts, A.C., Vanko, D.A. (1994) New mineral names. American Mineralogist: 79: 1009-1014.
New Minerals (1997), New Minerals 1990-1994.

Internet Links for SeeliteHide

Localities for SeeliteHide

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 (TL)
 
  • Occitanie
    • Hérault
      • Le Puech
Bariand, P., Bachet, B., Brassy, C., Medenbach, O., Deliens, M., Vautier, R., & Piret, P. (1993) A new Uranium Mineral from the Talmessi Mine, Iran, and Rabejac, France. Mineralogical Record 24:463-467
Germany
 
  • Baden-Württemberg
    • Freiburg
      • Ortenaukreis
        • Oberwolfach
WALENTA, K. (1996): Seelit aus dem Schwarzwald. - Chem. Erde 56, 273-280
      • Rottweil
        • Schenkenzell
          • Wittichen
            • Böckelsbach valley
Walenta, K. (1992) Die Mineralien des Schwarzwaldes und ihre Fundstellan. Christian Weise Verlag, München, 336 pages [in German].
Iran
 
  • Isfahan Province
    • Nain County
      • Anarak District
Hairapetian collection
Le Règne Minéral, Hors Série IV, 1998; Min.Rec.: 24: 463-467.
 
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