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The structure of xylite as lithotype of lignite indicates that it predominately originates from tree stems, from the family Taxodiaceae or Cupressaceae. Despite drastic changes in the long term process of its transformation, it retains some relevant properties of wood, nowadays applicable for specific products. The research examined the influence of moisture content and temperature on modulus of elasticity (MOE) and modulus of rupture (MOR) as well as shear strength and hardness. With decreasing of moisture content, the bending strength and stiffness of xylite increased and was best fitted by power regression model. The increasing of testing temperature from 20 °C to 80 °C had negative effect on stiffness and bending strength of xylite. The hardness was positively correlated with density of xylite, whereas shear strength had the opposite tendency.Građa ksilita, litotipa lignita, pokazuje da on većinom potječe iz stabala porodica Taxodiaceae i Cupressaceae. Usprkos drastičnim promjenama u dugotrajnim geološkim procesima transformacije, ksilit je zadržao neka važna svojstva drva. U istraživanju je ispitivan utjecaj sadržaja vode i temperature ksilita na njegov modul elastičnosti i modul loma pri savijanju, kao i na smicajnu čvrstoću te na tvrdoću. Sa smanjivanjem sadržaja vode u ksilitu posmična čvrstoća i modul elastičnosti poboljšavaju se. Ovisnost najbolje opisuje potencijski regresijski model. Podizanje temperature s 20 na 80 °C negativno je utjecalo na modul elastičnosti i čvrstoću savijanja ksilita. Tvrdoća ksilita bila je u pozitivnoj korelaciji s gustoćom, a smicajna čvrstoća se s povećanjem gustoće smanjila

Evaluation of Material Characteristics of Xylite – Part 1. Influence of Moisture Content on Some Mechanical Properties