Image Title: Pietra Onyx Procelian 18x18 Polished Marble Floor Wall Tile Within 18 X 18 Tile Ideas. Filename: pietra-onyx-procelian-18x18-polished-marble-floor-wall-tile-within-18-x-18-tile-ideas.jpg. Image Dimension: 0 x 0 pixels. Images Format: jpg/jpeg. Publisher/Author: Angelo Kovacek. Uploaded Date: Monday - February 11th. 2019 02:48:52 AM. Category: Architecture. Image Source: archdaily.com.