Utjecaj pigmenata i primjesa na postojanost boje i dekorativnost prirodnog kamena

Scientific paper - Original scientific paper

• Title (english): Influence of pigments and admixtures on the colour quality and decorative qualities of the natural stone
• Author: Ana Kršinić
• Author: Ivan Tomašić
• Author's institution: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Mineralogy, Petrology and Mineral Resources)
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract (croatian)

Mnogi naši crnkasto i sivkasto obojeni vapnenci zbog povećanog
sadržaja organske tvari gube svježinu na vanjskim
površinama, izbljeđuju i postaju puni svijetlih mrlja. Prirodna
dekorativnost takvih vapnenaca postiže se njihovom ugradnjom
u unutrašnjim prostorima. Pigmenti u mineralima
magmatskih stijena znatno su postojaniji, ne mijenjaju se
tijekom vremena. Ipak u uvjetima agresivnog okoliša npr.
pod utjecajem posolice, porijeklom s morske površine, dolazi
do blijeđenja i nagrizanja cjelokupne površine ugrađenog
kamena. Veća postojanost boje magmatskih i metamorfnih
varijeteta kamena ili komercijalno granita leži u njihovom
silikatnom sastavu. Metamorfne stijene nakon nekog vremena
počnu gubiti svježinu svoje boje ali je intenzitet promjene
primjetno manji od promjene kod sedimentnih stijena.

Abstract (english)

The stable and lasting color of the stone increases its decorative and commercial value. Special attention needs to be applied to the consistent colour quality depending on the influence of numerous and unforseen factors to which stone might be exposed after being installed, especially on outer horizontal and vertical surfaces. These days it is more and more often necessary to consult an expert regarding the consistency of the color quality as well as regarding the quality of the natural stone in general. Many of our black and grey coloured limestones, due to the increased content of organic matter, lose their freshness on outer surfaces; they are fading and become covered with lots of light patches. The natural decorative quality of those limestones is reached through their being installed into interior spaces. The pigments in minerals of magmatic rocks are considerably more lasting; they don’t change over time. Anyway, under the conditions of an aggressive environment, for instance under the influence of accumulated salt from the sea surface, fading occurs, as well as erosion of the total surface of the installed stone. Bigger stability of color in magmatic and metamorphic varieties of stone and commercial granite lays in their silicate composition. Metamorphic rocks start to lose the freshness of their colours but the intensity of change is notably smaller than with changes of sediment rocks.

• Keywords (croatian): prirodni kamen; pigmenti i primjese; dekorativnost prirodnog kamena
• Language: croatian
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - domestic
• Publication version: Published version
• Journal title: Klesarstvo i graditeljstvo
• Numbering: vol. 20, no. 1-2, pp. 77-86
• p-ISSN: 0353-7897
• URN:NBN: urn:nbn:hr:169:909994
• Publication: 2009
• Project: Number: 195-1953068-2704; Title (croatian): Dinarski krš: geološka evolucija, mineralne sirovine, paleotla i tla; Title (english): Dinaric karst: geological evolution, mineral resources, paleosols and soils; Leader: Goran Durn; Jurisdiction: Croatia; Funding stream: ZP
• Project: Number: 195-1953068-3206; Title (croatian): Magmatizam i mineralna ležišta Dinarskog krškog područja; Title (english): Magmatism and mineral deposits of the Dinaric karst area; Leader: Vesnica Garašić; Jurisdiction: Croatia; Funding stream: ZP
• Document URL: https://hrcak.srce.hr/64004
• Type of resource: Text
• Access conditions: Open access
• Created on: 2024-03-26 17:06:48