ABSTRACT: For this study; different colored pyroclastics belong to Kavak ignimbrite that widely spreadsaround Nevşehir were choosen. These rocks were widely used as building stone in low storeyedbuildings and especially in historical building in the past. Nowadays, they have an increasing usagein outer surface covering of the buildings, stairs, floorings, banisters, pools and their surroundings,arches, columns, fireplaces, balcony decorations and restoration applications because of havingdecorative properties. Sampling was carried out in 6 different areas in the field because they havedifferent color and texture characteristics that change frequently in close areas. At firstpetrographical and chemical properties of these samples were determined and then standard rockmechanic experiments were carried out in order to determine their geomechanical properties.According to the results, it is exposed that investigated pyroclastics are non-welded ignimbrite andthere are important relationships between their geological, chemical, petrographical properties andgeomechanical properties. Especially, the samples having opaque minerals, fine grained rockfragments and higher matrix ratio than grain ratio, have lower porosity and higher density andcompressive strength.