Fehér Béla (szerk.): Az ásványok vonzásában, Tanulmányok a 60 éves Szakáll Sándor tiszteletére (Miskolc, 2014)
Ozdín Daniel - Szakáll Sándor: A Miskolc-lillafüredi axinit-(Fe) kémiai összetétele
214 D. Ozdín & S. Szakáll Fig. 11. Aggregate composed from magnetite crystals (Mgt) on epidote (Ep) vein with clinochlore veinlets (Chi) and albite (Ab). BSE image. 11. ábra. Magnetitkristályok- ból (Mgt) álló aggregátum epidot-telérben (Ep), klino- klor-erekkel (Chl) és albittal (Ab). Visszaszórt-elektronkép. zonality. According to the EDS spectra and X-ray mapping fluorapatite contains increased amount of fluorine characteristic for fluorapatite. Calcite, CaC03, creates thin, macroscopic white veins in metabasalt. Usually it is the main filling mineral of these veinlets (Fig. 9). This calcite is genetically older than albite, epidote and axinite-(Fe). Less frequently calcite is present in form of little euhedral prismatic crystals with characteristic cut of rhombohedron on quartz veinlets (Fig. 4). Calcite is locally a product of saussuritization together with clinozoisite/epidote and albite in metabasalt. Clinochlore, Mg5Al(AlSi3O10)(OH)8, forms thin veinlets or nets composed of thin veinlets in metabasalts. Sometimes clinochlore occurs in assemblage with magnetite, epidote, albite and calcite. According to EDS spectra it is Mg-dominant member of chlorite group with intensive isomorphism Mg<->Fe. Hematite, Fe203, and unknown Fe-Ti oxides of microscopic size were observed in metabasalts in association with fluorapatite, titanite, albite, clinochlore and minerals of epidote group. Magnetite, Fe2+Fe3^204, forms aggregates composed of euhedral, partially rounded crystals up to 0.05 mm in size on veinlets in association with clinochlore, albite and zonal epidote (Fig. 11). Less frequently magnetite forms microscopic inclusions in the REE-rich epidote I. Minerals of the epidote group form probably three generations in metabasalts. The oldest member of this group - epidote I, usually has intensive chemical zonality (Fig. 12), which is mainly caused by the presence of REE, however, in observed cases the concentration was too low that it could be described as allanite-(Ce). If s just epidote with elevated REE contents. Sometimes it contains inclusions of magnetite. The REE-rich epidote is usually cut by younger epidote/clinozoisite III veins. Epidote II occurs as a major mineral of hydrothermal alteration process in metabasalts. Epidote II is predominantly anhedral and it is a product of the intense epidotization or saussuritization. Genetically youngest is epidote/clinozoisite III, which occurs mainly in the form of euhedral crystals up to 0.5 mm in
