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New mineral species for Hungary in 2008

 

Sulphides

Naumannite - Ag2Se, orthorhombic

Locality: in a drill core at the Korom Hill, Füzérradvány, Tokaj Mts.
Description: zoned aggregates and encrustations with acanthite and pyrite in an Au-Ag ore indication. Other accompanying minerals: "electrum", jarosite and an unidentified Fe-Sb oxide.
Examination: SEM-EDS (László Kupi and Norbert Zajzon, University of Miskolc).

Oxides

Coronadite - Pb(Mn4+, Mn2+)8O16, monoclinic, pseudo-tetragonal

Locality: Villanytető part of the Andrássy-I. mine, Rudabánya
Description: black encrustations of 2-3 mm thickness.
Examinations: XRD and EDS (Sándor Szakáll, University of Miskolc).

Schwertmannite - Fe16O16(OH)12(SO4)2 • nH2O, tetragonal

Locality: dump of the Bányabérc shaft and in some abandoned adits around Mátraszentimre, Mátra Mts.
Description: reddish brown encrustations and globular or stalactitic aggregates in intimate intergrowth with goethite. It was formed in highly acidic environments, mainly on dumps and walls of abandoned adits by weathering of sulphides. Typical accompanying minerals: goethite, jarosite and gypsum.
Examinations: Raman spectroscopy and EDS (Izabella Farkas, Eötvös Loránd University, Budapest).

Carbonates

Čejkaite - Na4(UO2)(CO3)3, triclinic

Locality: uranium mine No. V, Kővágószőlős, Mecsek Mts.
Description: irregular or sometimes globular, lemon yellow aggregates up to 3 mm in diameter. These aggregates consist of minute prismatic crystals (10-15 µm long) according to SEM examinations.
Collector: Géza Szreda (Komló).
Examinations: XRD and SEM-EDS (Sándor Szakáll, University of Miskolc).

Leadhillite - Pb4(SO4)(CO3)2(OH)2, monoclinic

Locality: Andrássy-I. mine, Rudabánya.
Description: white prismatic crystals up to 1 mm in length in cavities of limonite ore together with smithsonite and malachite.
Collector: János Éhik (Szuhogy).
Examinations: XRD and SEM-EDS (Sándor Szakáll, University of Miskolc).

Sulphates

Butlerite - Fe3+(OH)SO4 • 2H2O, monoclinic

Locality: burning coal mine dumps at Pécs-Vasas, Mecsek Mts.
Description: it is a component of yellowish, fine grained, loose encrustations.
Collector: Csaba Papp (Pécs).
Examinations: XRD and SEM-EDS (Sándor Szakáll, University of Miskolc).
Remark: it was mentioned earlier from the borehole Mórágy-11A, between 61.4-61.6 m (Péter Kónya, personal communication).

Osarizawaite - PbCuA12(SO4)2(OH)6, trigonal

Locality: Szűzvár Hill, near Pátka, Velence Mts.
Description: greenish yellow, fine grained aggregates consisting of roughly developed tabular crystals up to 0.1 mm in diameter in highly silicified vein fillings and on walls of tiny cavities. Associated minerals: cerussite, anglesite, malachite, azurite, bindheimite, stibiconite and plumbogummite. It is in intimate intergrowth with gorceixite, goyazite, crandallite and other, poorly defined minerals.
Examinations: XRD and SEM-EDS (Sándor Szakáll, University of Miskolc).

Phosphates and arsenates

Gilmarite - Cu3(AsO4)(OH)3, triclinic

Locality: Kozár quarry, Pécs, Mecsek Mts.
Description: pale greenish blue encrustations with globular surfaces up to some mm in diameter on fractures of limestone.
Collector: Csaba Papp (Pécs).
Examinations: XRD and SEM-EDS (Sándor Szakáll, University of Miskolc).

Metatorbernite - Cu(UO2)2(PO4)2 • 8H2O, tetragonal

Locality: Kő Hill, Kópháza, Sopron Mts.
Description: emerald green, thick tabular crystals up to 0.5 mm in diameter with excellent cleavage. It was found in small cavities of pegmatoid gneiss together with K-feldspars and muscovite.
Collector: Sándor Klaj (Pécs).
Examinations: XRD (Béla Fehér, Herman Ottó Museum, Miskolc) and SEM-EDS (Árpád Kovács, University of Miskolc).

Silicates

According to wavelength-dispersive electron microprobe analyses on zeolites from the Balaton Highland, the following new zeolite species were identified for Hungary (Péter Kónya, Hungarian Geological Institute, Budapest):
- gmelinite-Ca: Zalahaláp
- chabazite-Na: Zalahaláp
- chabazite-K: Badacsony Hill
- phillipsite-Na: Prága Hill, Sümegprága and Haláp Hill, Zalahaláp.

Plombiérite - Ca5Si6O16(OH)2 • 7H2O, orthorhombic

Locality 1: Sarvaly Hill, Sümegprága, Balaton Highland.
Description 1: thin tabular crystals up to 0,3 mm in length and up to 0,1 mm in width in dolomite-limestone xenoliths in basalt. It is in intimate intergrowth with tobermorite-11A, tacharanite and scawtite; the aggregates are covered by thaumasite.
Locality 2: Haláp Hill, Zalahaláp, Balaton Highland.
Description 2: it is a component of snow white globules (up to 3 mm in diameter) together with tobermorite-11Å, halloysite-10Å, spinel and serpentine minerals.
Examinations: XRD, SEM-EDS (Péter Kónya, Hungarian Geological Institute, Budapest).

Scawtite - Ca7Si6(CO3)O18 • 2H2O, monoclinic

Locality: Sarvaly Hill, Sümegprága, Balaton Highland.
Description: thin tabular crystals with 0,4-0,5 mm in length and with 0,1-0,2 mm in width in dolomite-limestone xenoliths in basalt. It is associated with tobermorite-11Å, plombierite and tacharanite.
Examinations: XRD, SEM-EDS (Péter Kónya, Hungarian Geological Institute, Budapest).

Sándor Szakáll
Department of Mineralogy and Petrology, University of Miskolc
H-3515 Miskolc-Egyetemváros (Hungary)
E-mail: askszs@gold.uni-miskolc.hu

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