New mineral species for Hungary in 2005
OXIDES
Brookite: TiO2; orthorhombic
Locality: Fényes Hill, Miskolc-Diósgyőr, Bükk Mts.
Description: brown or sometimes zonal, translucent or opaque tabular crystals up to 2-3 mm in fissures of strongly silicified magmatite. It is associated with albite.
Sphaerobismoite: Bi2O3; tetragonal
Locality: dump of Alsó-Rózsa adit, Nagybörzsöny, Börzsöny Mts.
Description: colorless or white, rectangular tabular crystals in globular aggregates up to 0.1 mm in diameter. Sphaerobismoite occurs in fissures or on cleavage planes of bismuthinite and native bismuth. It is a secondary mineral.
SULFATE
Clairite: (NH4)2Fe3(OH)3(SO4)4 • 3H2O; triclinic
Locality: dump of air shaft No. III of the Komló coal mine, Mecsek Mts.
Description: yellow, powdery or irregular aggregates up to 1,5 mm in cavities of tschermigite. It is a secondary mineral.
SILICATES
Clinohumite: (Mg,Fe)9(F,OH)2(SiO4)4; monoclinic
Locality: in a gravel pit at Dunavarsány.
Description: honey yellow and yellowish brown anhedral or subhedral crystals up to 3 mm with vitreous luster in a big marble boulder located in Pleistocene gravel bed.
Cowlesite: CaAl2Si3O1010 • 5–6H2O; orthorhombic
Locality: Pálbükk quarry, Pilisszentlászló, Pilis Mts.
Description: globular aggregates (up to 0.5 mm in diameter) consist of snow white, lath shaped crystals with pearly luster in small cavities of andesite. Surface of aggregates are sometimes brown because of coloration of iron oxides.
Gobbinsite: Na5Al6Si10O32? • 12H2O; orthorhombic
Locality: Haláp Hill, Zalahaláp, Balaton Highland.
Description: snow white globular aggregates up to 3 mm in diameter with dull or slightly pearly luster in intimate intergrown with okenite in amygdules of basalt.
ORGANIC MINERAL
Hartite: C20H34; triclinic
Locality: dump of Edelény coal mine.
Description: main component of dark brown resins located in fissures filled chalcedony of brown coal.
Sándor Szakáll
Back to new mineral species for Hungary
Back to Home
|