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dentotal.hu

New mineral species for Hungary in 1997

 

Sulphides

 

Ikunolite Bi4(S, Se)3

Locality: dump of Alsó-Rózsa adit, Nagybörzsöny, Börzsöny Mountains.

Description: foliated masses (up to 0.5-1.5 cm in diameter) together with other Bi-minerals.

 

Oxides

 

Birnessite Na4Mn14O27 9 H2O

Locality: Esztramos Hill, Tornaszentandrás.

Description: black to brownish-black globular aggregates (up to 1 mm) and crusts in limestone, together with other Mn-oxides and carbonate-hydroxylapatite.

 

Carbonates

 

Alumohydrocalcite CaAl2(CO3)2(OH)4 3 H2O

Locality: Bicske-Csordakút coal deposit, Gerecse Mountains.

Description: white globular aggregates (up to 2 mm) in the coal deposit, together with gypsum and aluminite.

 

Sulphates

 

Carbonate-cyanotrichite Cu4Al2(CO3, SO4)(OH)12 2 H2O

Locality: Adolf mine, Rudabánya.

Description: pale blue sprays (up to 0.5-1 mm in diameter) very rarely found in limonite.

 

Paracoquimbite Fe2(SO4)3 9 H2O

Locality: Karolina open-pit, near Pécs, Mecsek Mountains.

Description: pale brown crusts with minute crystals in a pyrite-rich coal deposit, in association with coquimbite and copiapite.

 

Wulfenite PbMoO4

Locality: Szűzvár Mill, Pátka, Velence Mountains.

Description: white to yellowish white tabular crystals (up to 1-3 cm) and rarely as minute bipyramidal crystals, in association with cerussite, pyromorphite, and bindheimite.

 

Phosphates and arsenates

 

Barium-pharmacosiderite BaFe8(AsO4)6(OH)8 14 H2O

Locality: Mád, Tokaj Mountains.

Description: rare, as pale green to yellowish brown cubic crystals (up to 0.5 mm) were found in limnoquartzite, together with alunite and scorodite.

 

Cornubite Cu5(AsO4)2(OH)4

Locality: Villanytető mine, Rudabánya.

Description: compact, pale green masses and earthy crusts, together with azurite and malachite

 

Plumbogummite PbAl3(PO4)2(OH)5 H2O

Locality: Szűzvár Mill, Pátka, Velence Mountains.

Description: white to grayish-white, well-formed microscopic rhombohedra (up to 0.2 mm) and crusts in cavities of quartz-fluorite veinlets, together with pyromorphite, malachite, and cerussite.

 

Volborthite Cu3V2O7(OH)2 2 H2O

Locality: Rágyincs Valley, Dédestapolcsány, Uppony Mountains.

Description: pale green to green-yellow films, crusts, sprays and globular aggregates (0.5-2 mm) in Paleozoic shales, together with secondary phosphates.

 

Silicates

 

Fluorapophyllite KCa4Si8O20(F, OH) 8 H2O

Locality: Recsk, Mátra Mountains; Uzsa, Balaton Highland; Egerbakta, Bükk Mountains.

Description: according to electron microprobe analyses on some Hungarian apophyllites, the above localities have fluorapophyllite.

 

Tacharanite Ca12Al2Si18O51 18 H2O

Locality: Uzsa, Balaton Highland.

Description: white, cotton-wool, soft aggregates in cavities of basalt, together with phillipsite.

 

Zeophyllite Ca4Si3O8(OH, F)4 2 H2O

Locality: Uzsa, Balaton Highland.

Description: rare, white tabular aggregates in cavities of basalt, in close association with apophyllite.

 

Sándor Szakáll

 

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