Blazo BOEV, Glıgor JOVANOVSKI, Petre MARKRESKI

Minerals from Macedonia. XX. Geological setting, lithologies, and identification of the minerals from Ržanovo Fe-Ni deposit

Ržanovo cevheri Vardar zonu’nun batı ofiyolit kuşağında yer alamaktadır. Cevher zonunun ana jeolojik özellikleri, mineralojisi, petrolojisi ve petrolojik evrimi dikkate alınarak tartışılacaktır. Magnetit, hematit, klinoklor, talk, sepiyolit, magnesioriebekit, lizardit, dolomit, fiogopit, stilpnomelan, kuvars, albit, pirit, maghemit, firohotin, digenit ve millerit gibi mineraller cevher zonunda gözlemlenmiştir. Belirgin olmayan morfolojileri ve özellikleri bazı minerallerin sadece fiziksel özellikleri kullanılarak tanımlanmasını zorlaştırmaktadır. Bunun için, magnetit, hematit, talk, dolomit, olivin, kalsit, aragonit ve brusite ile bazı serpentin mineralleri (antigorit ve krizotil) titreşimli spektroskopi yöntemi ile tanımlamışlardır. Analiz edilen mineral içinde diğer minerallerin inklüzyonlarının varlığı IR spektroskopisi ve Raman yöntemleri ile mineralerin tanımlamasını zorlaştırmıştır.

Makedonya XX.’den mineraller: jeolojik konum, litolojiler ve Ržanovo Fe-Ni cevherinden mineral tanımlamaları

The Ržanovo deposit lies within the western ophiolite belt of the Vardar zone. Its main geological units are discussed in terms of their mineralogy, petrology and petrological evolution. Minerals observed include: magnetite, hematite, clinochlore, talc, sepiolite, magnesioriebeckite, lizardite, dolomite, phlogopite, stilpnomelane, quartz, albite, pyrite, maghemite, pyrrhotine, digenite and millerite. Some minerals had non-distinct morphologies and ambiguous characteristics, preventing identification on the basis of physical properties alone. Thus, some of the minerals (magnetite, hematite, talc, dolomite, olivine, calcite, aragonite and brucite) as well as some serpentine minerals (antigorite and chrysotile) were identified by vibrational spectroscopy. Difficulties in identification by IR spectroscopy and Raman were considered to be the result of contamination (i.e., inclusions of other minerals in the analyzed crystals).

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