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Abstract

A process for making a slab of, e.g., stone, wood, White Granite and the like, decorative element, by sandblasting therein a relatively deep cavity, using a jet of particles having at least hardness 7 that are forced through a resilient PVC (Poly Vinyl Chloride) mask, which protects the surfaces of the slab that are not intended to be sandblasted. Using the PVC mask allows obtaining a rather deep cavity in the slab without having to frequently replace the mask due to wear, and also allows obtaining cavities with edges that have contour lines that are essentially identical to the contour lines of the windows in the mask. Utilization of PVC masks impart to the cavities conspicuous artistic appearance, thereby beatifying the appearance of the ornamental slab. Then, the slab is made an ornamental slab, by incorporating two and/or three dimensional ornamental elements (e.g., dried flowers, shells of various kinds, clams, cockles, scallops, blue mussels, various colored stones, metal plastic or wood elements, mirrors, pearls, light sources, etc.) into the cavity. Then, the cavities are covered with a covering sheet for protecting the ornamental elements residing therein. The covering sheet is made of a desired material, which may be transparent or semi-transparent, and may have different shapes and colors.

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First Claim