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Application filed by Quarzite Di Sanfront Di G CapefiledCriticalQuarzite Di Sanfront Di G Cape
Priority to IT95CN000005ApriorityCriticalpatent/IT1281562B1/en
Publication of ITCN950005A0publicationCriticalpatent/ITCN950005A0/en
Publication of ITCN950005A1publicationCriticalpatent/ITCN950005A1/en
Application grantedgrantedCritical
Publication of IT1281562B1publicationCriticalpatent/IT1281562B1/en
Chemical And Physical Treatments For Wood And The Like
(AREA)
Abstract
The present invention relates to an industrial process for varying the natural colour of ornamental stones used for paving, cladding and decoration, and of rocks in general. The colour modification is achieved by the combined action of time and heat, in a ventilated kiln in an oxidizing environment.
IT95CN000005A1995-04-141995-04-14Process for varying the colour of rocks by means of heat treatment
IT1281562B1
(en)