20.500.12556/DiRROS-23719 Morfološke značilnosti in vzroki za obarvanost kristalov kalcita iz Liboj Morphological characteristic and causes of color for the crystals of calcite from Liboje Raziskali smo kristale kalcita iz kamnoloma Liboje in jih primerjali s kristali kalcita iz drugih kamnolomov v širši okolici Celja. Pri kristalih kalcita iz kamnoloma Liboje prevladujejo kristalne forme položnega romboedra (012), ki se jim v kasnejši fazi kristalizacije pridružijo kristalne forme strmih romboedrov. Kristalizacija je potekala iz segretih vodnih raztopin znotraj razpok v karbonatnih kamninah. Ugotovili smo, da je rast kristalov kalcita iz Liboj povezana z vsaj dvema dogodkoma v geološki zgodovini, ko so se segrele vodne raztopine in posredno povzročile kristalizacijo mineralov v razpokah znotraj karbonatnih kamnin. Barva kristalov kalcita pa je povezana tako z vključki trde faze, kot so manganovi oksidi in goethit, kot s tekočinskimi vključki - vodo. Mineralno sestavo vključkov smo določili z ramansko mikrospektroskopijo. The crystals of calcite from the quarry Liboje were investigated and compared with calcite crystals from other quarries in the surrounding area of Celje. In calcite crystals from the Liboje quarry, the crystal form of flat rhombohedron faces were predominant (012). At a later stage of crystallization, the crystal form of steep rhombohedrons prevailed. They crystallised from hot aqueous Solution in the fissures within carbonate rocks. It was ascertained that the crystal growth of calcite from Liboje was related to at least two events in geological history. The colour of calcite crystals is associated with both the solid phase inclusions, such as manganese oxide and goethite, and by liquid inclusions - water. Mineral composition of inclusions was determined by Raman microspectroscopy. kalcit morfologija kristalov goethit markazit Liboje Slovenija calcite morphology of crystals goethite marcasite Liboje Slovenia true false true Geološki zavod Slovenije Slovenski jezik Angleški jezik Neznano 2025-09-26 11:02:21 2025-09-26 11:07:18 2025-10-24 03:54:55 0000-00-00 00:00:00 2014 0 0 str. 177-182 št. 2 57 2014 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2014-12-01 55 0016-7789 10.5474/geologija.2014.015 2083175 RAZ_Plaskan_Maja_2014.pdf RAZ_Plaskan_Maja_2014.pdf 1 400589BCBAB1D90C43BEFA36E17B9CD9 4ad401b87986447a06e2d2a6702b7f4dc7ad5a0ccd122ac3be1ddb4491210912 a9478416-9ab8-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35150 https://doi.org/10.5474/geologija.2014.015 0 77bb8c24-9ab8-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35149 Zavod za gradbeništvo Slovenije 0 0 0