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New mineral species for Hungary in 1999
Elements
Awaruite Ni3Fe Locality: Kaba meteorite. Description: microscopic grains.
Sulphides
Löllingite FeAs2 Locality: Dunaszekcső, South Transdanubia (from drill core). Description: single grain with 100 µm size in phonolite.
Ullmannite NiSbS Locality: Felsőcsatár, Kőszeg Mountains. Description: rims around silver white gersdorffite grains in serpentinite.
Oxides
Ferrihydrite Fe5O6(OH)3 • 3H2O Locality: Szentkirályszabadja (from drill core). Description: a constituent in red clay according to X-ray powder diffraction investigation. Associated minerals are goethite and hematite.
Hollandite Ba(Mn4+,Mn2+)8O16 A constituent of massive manganese nodules in the Jurassic limestones of the Gerecse and Bakony Mts. Also identified in some hard manganese crusts at Rudabánya.
Minium Pb3O4 Locality: Szár Hill, Szabadbattyán ore deposit. Description: red, powdery coatings were identified by X-ray diffraction in the cavities of cerussite ore.
Carbonates
Dundasite PbAl2(CO3)2(OH)4 • H2O Locality: Nagylápa-fő, near Parádsasvár, Mátra Mountains. Description: white globular aggregates (up to 0.5 mm) in the cracks of altered sphalerite, together with smithsonite, allophane, cerussite, and devilline.
Kamphaugite-(Y) Ca2(Y,REE)2(CO3)4(OH)2 • 3H2O Locality: Tó-bérc quarry (formerly Forgalmi mine), Szarvaskő, Bükk Mountains. Description: white, globular aggregates (up to 0.5 mm) were identified by X-ray diffraction in the cracks of metagabbro.
Arsenates
Richelsdorfite Ca2Cu5Sb(AsO4)4(OH)6Cl • 6H2O Locality: Fehérkő Hill, Parádfürdő, Mátra Mountains. Description: turquoise-blue, globular aggregates (up to 0.05 mm) consisting of thin tabular crystals, closely associated with scorodite, jarosite, bindheimite, cornubite, etc.
Silicates
Allophane Al2Si1-2O5-7 • 2-3H2O Locality: Nagylápa-fő, Parádsasvár, Mátra Mountains. Description: white to greenish blue crusts in waste dumps, together with dundasite, cerussite, devilline, etc.
Eudialyte Na15Ca7Fe3Zr3Si(Si3O9)2(Si9O27)2(OH)2Cl2 Locality: Köves-tető Hill, Hosszúhetény, Mecsek Mountains; Dunaszekcső, South Transdanubia (from drill core). Description: a rare microscopic component of phonolite in the Mecsek Mts. Colorless, microscopic phenocrysts (up to 100-200 m m) were identified by microprobe analyses in phonolite at Dunaszekcső, South-Transdanubia region.
Joaquinite-(Ce) NaFe2+Ba2Ce2(Ti,Nb)2[Si4O12]2O2(OH,F) • H2O Locality: Pécs-Vasas coal mine, Mecsek Mountains. Description: brown, globular aggregates (up to 0.5 mm) consisting of lamellae identified by X-ray diffraction in cavities of phonolite.
Margarite CaAl2[Al2Si2O10](OH)2 Locality: Szarvas, Great Hungarian Plain (from drill core); Görcsöny, South Transdanubia (from drill core). Description: in microscopic sizes in retrograde eclogite at Görcsöny (from a core sample), South-Transdanubia. It was identified as rims around kyanite porphyroblasts by microprobe analyses in retrograde eclogite at Szarvas (core sample), Great Hungarian Plain.
Omphacite (Ca,Na)(R2+,Al)[Si2O6], where R2+ = Mg, Fe2+ Locality: Görcsöny, South Transdanubia (from drill core). Description: microscopic components of retrograde eclogites. Sándor Szakáll |
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