{"id":1141,"date":"2024-08-13T09:30:08","date_gmt":"2024-08-13T07:30:08","guid":{"rendered":"https:\/\/renier.be\/?page_id=1141"},"modified":"2026-03-09T17:14:12","modified_gmt":"2026-03-09T16:14:12","slug":"technical-specifications-bluestone","status":"publish","type":"page","link":"https:\/\/renier.be\/en\/technische-specificaties-blauwe-hardsteen\/","title":{"rendered":"Technical Specifications Material Blue stone"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"1141\" class=\"elementor elementor-1141\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b69b9de e-flex e-con-boxed e-con e-parent\" data-id=\"b69b9de\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d5ded06 elementor-widget elementor-widget-heading\" data-id=\"d5ded06\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Technical properties of Belgian bluestone<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0066632 e-flex e-con-boxed e-con e-parent\" data-id=\"0066632\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-bf44952 e-con-full e-flex e-con e-child\" data-id=\"bf44952\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-12aff16 elementor-widget elementor-widget-text-editor\" data-id=\"12aff16\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>1 Geography \/ Geology<\/h2><p><strong>\u00a0<\/strong><span style=\"text-align: var(--text-align); color: var( --e-global-color-primary );\">The Carri\u00e8res de la Pr\u00e9alle Sprimont S.A. quarry a blue stone called \"ARDUIN - BELGIAN BLUE HARDSTEEN \u00ae\", commercialized under the name \"ARDUIN OF THE OURTHE\". The La Pr\u00e9alle quarry is located in La Pr\u00e9alle, east of the former borough of Chanxhe (Sprimont), in the Ourthe-Ambl\u00e8ve basin, in the central part of the north flank of the Synclinal of Sprimont. Lambert coordinates: N 50\u00b0 30' 10.285'' O 5\u00b0 36' 25.942''.<\/span><\/p><p>The material is used as a building stone and dressing stone. It is a compact, non-porous fossiliferous limestone, with crinoids, with a gray color when cut and a dark gray color when freshly fractured, with stylolitic joints parallel to the stratification. The mined strata form the Encrinite Formation of Ecaussinnes (Tn3b), age Ivorian, Tournaisian - Dinantian series, Lower Carboniferous.<\/p><p>Mining is done in open air; the banks have a stretch of N88\u00b0O and a slope of 58\u00b0Z in the western part of the quarries and a stretch of N86\u00b0O and a slope of 50\u00b0Z in the eastern part. The total mineable thickness in one piece is about 32.8 m.<\/p><p>The approval concerns the parts of the quarry of similar quality, i.e. the homogeneous, low stylolite massive production banks of the exploited whole, clearly marked on the coupe (see Appendix 1, geological coupe).<\/p><h2>2 Petrography \/ Lithology<\/h2><p><strong>\u00a0<\/strong><u style=\"text-align: var(--text-align); color: var( --e-global-color-primary );\">Macroscopic description<\/u><span style=\"text-align: var(--text-align); color: var( --e-global-color-primary );\"> :<\/span><\/p><p><span style=\"text-align: var(--text-align); color: var( --e-global-color-primary );\">\u00a0\"ARDUIN - BELGIAN BLUE HARDSTEEN \u00ae\" is a compact limestone of sedimentary origin resulting from the accumulation of innumerable remains of crinoids cemented together in a microcrystalline calcite mass. Its gray color when cut and dark gray color when freshly fractured is due to the organic carbon present between the calcite crystals. The stone acquires a medium gray patina typical of this material. This patina, which is due to aging and inherent in the composition of the rock, must be taken into account in restoration works.<\/span><\/p><p>In addition to remains of crinoids, the limestone contains fragments of bryozoa (mainly fenestella), shells of brachiopods and corals (standing alone or in colony). A carbonated sedimentary rock is quarried in the quarry (2.2.1.2.b in PTV 819-4 Classifications of rocks in the context of homologation with reference to NBN EN 12670).<\/p><p><u>Microscopic description<\/u>:\u00a0<\/p><p>\"ARDUIN - BELGIAN BLUE HARDSTEEN \u00ae\" is a bioclastic limestone with dominant crinoids; the other fragments are bryozoa, brachiopods and corals. Pellets may be observed locally in some banks. It is a packstone, sometimes a grainstone (DUNHAM classification) or a biomicrite to a biosparite (FOLK classification, see NBN EN 12670). Other lithological peculiarities may be present (see TV 220).<\/p><p><u>Composition (for information)<\/u>:\u00a0<\/p><p>The average composition is from 96 to 99 % carbonate (at least 80%, mainly calcite), from 0 % to 1% quartz, from 0.1% to 0.4 % iron (mainly sulfides: pyrite and marcassite) and from 0.2 % to 0.4 % organic carbon.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-db1d053 e-con-full e-flex e-con e-child\" data-id=\"db1d053\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;position&quot;:&quot;absolute&quot;}\">\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c014006 e-flex e-con-boxed e-con e-child\" data-id=\"c014006\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e64c2c7 elementor-widget elementor-widget-image\" data-id=\"e64c2c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"721\" height=\"528\" src=\"https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-BH.jpg\" class=\"attachment-full size-full wp-image-1143\" alt=\"\" srcset=\"https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-BH.jpg 721w, https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-BH-300x220.jpg 300w, https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/Eigenschappen-materiaal-BH-600x439.jpg 600w\" sizes=\"(max-width: 721px) 100vw, 721px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2ae9426 e-con-full e-flex e-con e-child\" data-id=\"2ae9426\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c67c090 elementor-widget elementor-widget-button\" data-id=\"c67c090\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/renier.be\/wp-content\/uploads\/2024\/08\/ATGH787-La-Prealle-Nederlands.pdf\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Click here for the full ATG certificate<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Technische eigenschappen Belgische blauwe hardsteen 1 Geogra\ufb01e \/ Geologie \u00a0De Carri\u00e8res de la Pr\u00e9alle Sprimont S.A. ontginnen een blauwe steen genaamd \u201cARDUIN &#8211; BELGISCHE BLAUWE HARDSTEEN \u00ae\u201d, gecommercialiseerd onder de naam \u201cARDUIN VAN DE OURTHE\u201c. De groeve van La Pr\u00e9alle bevindt zich in La Pr\u00e9alle, ten oosten van de vroegere deelgemeente Chanxhe (Sprimont), in het [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-1141","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Technische Specificaties Materiaal Blauwe hardsteen - Renier Natuursteen<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/renier.be\/en\/technical-specifications-bluestone\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Technische Specificaties Materiaal Blauwe hardsteen - Renier Natuursteen\" \/>\n<meta property=\"og:description\" content=\"Technische eigenschappen Belgische blauwe hardsteen 1 Geogra\ufb01e \/ Geologie \u00a0De Carri\u00e8res de la Pr\u00e9alle Sprimont S.A. ontginnen een blauwe steen genaamd \u201cARDUIN &#8211; BELGISCHE BLAUWE HARDSTEEN \u00ae\u201d, gecommercialiseerd onder de naam \u201cARDUIN VAN DE OURTHE\u201c. 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