{"id":7379,"date":"2026-08-31T12:05:19","date_gmt":"2026-08-31T10:05:19","guid":{"rendered":"https:\/\/renier.be\/?page_id=7379"},"modified":"2026-08-31T13:38:47","modified_gmt":"2026-08-31T11:38:47","slug":"composition-de-la-pierre-bleue-belge","status":"publish","type":"page","link":"https:\/\/renier.be\/fr\/de-steen-onderzocht\/samenstelling-belgische-blauwe-hardsteen\/","title":{"rendered":"Livre III \u2013 Chapitre 9 \u2013 Composition de la pierre bleue belge"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"7379\" class=\"elementor elementor-7379\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e894411 e-flex e-con-boxed e-con e-parent\" data-id=\"e894411\" 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-f13be98 elementor-widget elementor-widget-html\" data-id=\"f13be98\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\r\n\/* =========================================================\r\n   RENIER ENCYCLOPEDIE\r\n   BOEK III \u2013 HOOFDSTUK 9\r\n   ========================================================= *\/\r\n\r\n.renier-ch9{\r\n  --navy:#102f4a;\r\n  --navy-dark:#081f32;\r\n  --gold:#a5743d;\r\n  --gold-light:#c49a62;\r\n  --stone:#f3f1ed;\r\n  --blue-light:#eaf0f4;\r\n  --text:#17212a;\r\n\r\n  font-family:Arial,Helvetica,sans-serif;\r\n  color:var(--text);\r\n  background:#fff;\r\n}\r\n\r\n.renier-ch9 *{\r\n  box-sizing:border-box;\r\n}\r\n\r\n.renier-ch9 a{\r\n  text-decoration:none;\r\n}\r\n\r\n.r9-inner{\r\n  width:min(1180px,calc(100% - 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34px);\r\n  }\r\n\r\n  .r9-intro-grid{\r\n    grid-template-columns:1fr;\r\n    gap:30px;\r\n  }\r\n\r\n  .r9-toc-grid{\r\n    grid-template-columns:1fr;\r\n  }\r\n\r\n  .r9-section{\r\n    padding:48px 0;\r\n  }\r\n}\r\n\r\n@media(max-width:600px){\r\n\r\n  .r9-hero{\r\n    padding:58px 0 52px;\r\n  }\r\n\r\n  .r9-nav-inner{\r\n    flex-direction:column;\r\n    align-items:flex-start;\r\n  }\r\n}\r\n<\/style>\r\n\r\n\r\n<div class=\"renier-ch9\">\r\n\r\n\r\n<!-- HERO -->\r\n\r\n<section class=\"r9-hero\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-kicker\">\r\n      LIVRE III \u00b7 CHAPITRE 9\r\n    <\/div>\r\n\r\n    <h1>\r\n      Composition de la pierre bleue belge\r\n    <\/h1>\r\n\r\n    <div class=\"r9-subtitle\">\r\n      Quels min\u00e9raux, fossiles et composants fins composent cette pierre naturelle ?\r\n    <\/div>\r\n\r\n    <p>\r\n      \u00c0 premi\u00e8re vue, la pierre bleue belge ressemble \u00e0 une roche homog\u00e8ne\r\n      roche. Sous le microscope, cependant, se r\u00e9v\u00e8le un univers bien plus complexe\ncompos\u00e9 de calcite, de restes fossiles, d\u2019une fine matrice calcaire et de petits\ncomposants min\u00e9raux. Ensemble, ils d\u00e9terminent le caract\u00e8re, la structure\net la couleur bleu-gris typique de la pierre.\r\n    <\/p>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- INTRO -->\r\n\r\n<section class=\"r9-intro\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-intro-grid\">\r\n\r\n      <div>\r\n\r\n        <div class=\"r9-label\">La pierre vue de l'int\u00e9rieur<\/div>\r\n\r\n        <h2>De quoi est compos\u00e9e la pierre bleue belge ?<\/h2>\r\n\r\n        <p>\r\n          La pierre bleue belge est un calcaire compact, riche en fossiles.\n Son min\u00e9ral principal est la calcite. Elle contient \u00e9galement\n de nombreux fragments fossiles et une matrice calcaire tr\u00e8s fine\n dans laquelle ces \u00e9l\u00e9ments sont incrust\u00e9s.\r\n        <\/p>\r\n\r\n        <p>\r\n          Cette composition r\u00e9sulte du milieu de s\u00e9dimentation d'origine,\n de la faune marine pr\u00e9sente et des processus g\u00e9ologiques\n qui ont finalement transform\u00e9 les s\u00e9diments en pierre naturelle.\r\n        <\/p>\r\n\r\n      <\/div>\r\n\r\n      <aside class=\"r9-intro-box\">\r\n\r\n        <strong>De la composition aux propri\u00e9t\u00e9s<\/strong>\r\n\r\n        <p>\r\n          La composition d'une roche est bien plus qu'\nun simple d\u00e9tail g\u00e9ologique. Sa composition min\u00e9ralogique et fossile\nd\u00e9termine sa texture, sa couleur et ses propri\u00e9t\u00e9s techniques,\nque nous examinerons plus en d\u00e9tail dans les chapitres suivants.\r\n        <\/p>\r\n\r\n      <\/aside>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- INHOUD -->\r\n\r\n<section class=\"r9-toc\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <h2 class=\"r9-toc-title\">Dans ce chapitre<\/h2>\r\n\r\n    <div class=\"r9-toc-grid\">\r\n\r\n      <a href=\"#h9-1\">\r\n        <span class=\"r9-toc-number\">9.1<\/span>\r\n        <span>La composition de la pierre bleue belge<\/span>\r\n      <\/a>\r\n\r\n      <a href=\"#h9-2\">\r\n        <span class=\"r9-toc-number\">9.2<\/span>\r\n        <span>La calcite, principal min\u00e9ral<\/span>\r\n      <\/a>\r\n\r\n      <a href=\"#h9-3\">\r\n        <span class=\"r9-toc-number\">9.3<\/span>\r\n        <span>Composants fossiles et bioclastes<\/span>\r\n      <\/a>\r\n\r\n      <a href=\"#h9-4\">\r\n        <span class=\"r9-toc-number\">9.4<\/span>\r\n        <span>La matrice calcaire fine<\/span>\r\n      <\/a>\r\n\r\n      <a href=\"#h9-5\">\r\n        <span class=\"r9-toc-number\">9.5<\/span>\r\n        <span>Autres min\u00e9raux et oligo-\u00e9l\u00e9ments<\/span>\r\n      <\/a>\r\n\r\n      <a href=\"#h9-6\">\r\n        <span class=\"r9-toc-number\">9.6<\/span>\r\n        <span>Pourquoi cette pierre est-elle bleu-gris ?<\/span>\r\n      <\/a>\r\n\r\n      <a href=\"#h9-7\">\r\n        <span class=\"r9-toc-number\">9.7<\/span>\r\n        <span>Composition vue au microscope<\/span>\r\n      <\/a>\r\n\r\n      <a href=\"#h9-8\">\r\n        <span class=\"r9-toc-number\">9.8<\/span>\r\n        <span>R\u00e9sum\u00e9 du chapitre 9<\/span>\r\n      <\/a>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- 9.1 -->\r\n\r\n<section class=\"r9-section\" id=\"h9-1\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-section-head\">\r\n\r\n      <div class=\"r9-section-number\">9.1<\/div>\r\n\r\n      <h2>La composition de la pierre bleue belge<\/h2>\r\n\r\n      <p>\r\n        La pierre bleue belge est principalement compos\u00e9e de calcite,\ncompl\u00e9t\u00e9e par des \u00e9l\u00e9ments fossiles, une matrice calcaire fine\net de petites quantit\u00e9s d'autres min\u00e9raux. Cette combinaison conf\u00e8re\n\u00e0 la pierre sa structure et son caract\u00e8re caract\u00e9ristiques.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n    <figure class=\"r9-figure\">\r\n      <img\r\n        src=\"https:\/\/renier.be\/wp-content\/uploads\/2026\/08\/09_01_waaruit_bestaat_belgische_blauwe_hardsteen-v2.png\"\"\r\n alt=\"Composition de la pierre bleue belge : calcite, fossiles, matrice calcaire et min\u00e9raux\"\r\n        loading=\"lazy\" data-neo-global--processed-neo-replace=\"true\">\r\n      <figcaption>\r\n        Figure 9.1 \u2014 Composition de la pierre bleue belge.\r\n      <\/figcaption>\r\n    <\/figure>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- 9.2 -->\r\n\r\n<section class=\"r9-section alt\" id=\"h9-2\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-section-head\">\r\n\r\n      <div class=\"r9-section-number\">9.2<\/div>\r\n\r\n      <h2>La calcite, principal min\u00e9ral<\/h2>\r\n\r\n      <p>\r\n        La calcite constitue la base min\u00e9rale de la pierre bleue\nbelge. Le carbonate de calcium est pr\u00e9sent dans les composants\ncalcaires d'origine ainsi que dans le ciment qui s'est form\u00e9\nlors de la formation de la roche.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n    <figure class=\"r9-figure\">\r\n      <img decoding=\"async\"\r\n        src=\"https:\/\/renier.be\/wp-content\/uploads\/2026\/08\/09_02_calciet_belangrijkste_mineraal_belgische_blauwe_hardsteen.png\"\r\n        alt=\"La calcite, principal min\u00e9ral de la pierre bleue belge\"\r\n        loading=\"lazy\" data-neo-global--processed-neo-replace=\"true\">\r\n      <figcaption>\r\n        Figure 9.2 \u2014 La calcite comme min\u00e9ral principal.\r\n      <\/figcaption>\r\n    <\/figure>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- 9.3 -->\r\n\r\n<section class=\"r9-section\" id=\"h9-3\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-section-head\">\r\n\r\n      <div class=\"r9-section-number\">9.3<\/div>\r\n\r\n      <h2>Composants fossiles et bioclastes<\/h2>\r\n\r\n      <p>\r\n        Une partie notable de la roche est constitu\u00e9e de restes d'organismes\n qui vivaient autrefois dans la mer tropicale. Ce sont surtout des fragments de\n crino\u00efdes, mais aussi d'autres \u00e9l\u00e9ments fossiles, qui se sont\n conserv\u00e9s dans la roche.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n    <figure class=\"r9-figure\">\r\n      <img decoding=\"async\"\r\n        src=\"https:\/\/renier.be\/wp-content\/uploads\/2026\/08\/09_03_fossiele_bestanddelen_bioklasten_belgische_blauwe_hardsteenv2.png\"\r\n        alt=\"Composants fossiles et bioclastes dans la pierre bleue belge\"\r\n        loading=\"lazy\" data-neo-global--processed-neo-replace=\"true\">\r\n      <figcaption>\r\n        Figure 9.3 \u2014 Composants fossiles et bioclastes.\r\n      <\/figcaption>\r\n    <\/figure>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- 9.4 -->\r\n\r\n<section class=\"r9-section alt\" id=\"h9-4\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-section-head\">\r\n\r\n      <div class=\"r9-section-number\">9.4<\/div>\r\n\r\n      <h2>La matrice calcaire fine<\/h2>\r\n\r\n      <p>\r\n        Entre les fragments fossiles les plus gros se trouve une\nmasse calcaire beaucoup plus fine : la matrice calcaire. Elle comble les espaces\nentre les \u00e9l\u00e9ments les plus gros et constitue un \u00e9l\u00e9ment important\nde la structure compacte de la pierre.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n    <figure class=\"r9-figure\">\r\n      <img decoding=\"async\"\r\n        src=\"https:\/\/renier.be\/wp-content\/uploads\/2026\/08\/09_04_fijne_kalksteenmatrix_belgische_blauwe_hardsteen.png\"\r\n        alt=\"Matrice calcaire fine en pierre bleue belge\"\r\n        loading=\"lazy\" data-neo-global--processed-neo-replace=\"true\">\r\n      <figcaption>\r\n        Figure 9.4 \u2014 La matrice calcaire fine.\r\n      <\/figcaption>\r\n    <\/figure>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- 9.5 -->\r\n\r\n<section class=\"r9-section\" id=\"h9-5\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-section-head\">\r\n\r\n      <div class=\"r9-section-number\">9.5<\/div>\r\n\r\n      <h2>Autres min\u00e9raux et oligo-\u00e9l\u00e9ments<\/h2>\r\n\r\n      <p>\r\n        Outre la calcite, la pierre bleue belge contient \u00e9galement de petites\nquantit\u00e9s d'autres composants min\u00e9raux. Bien que leur proportion\nsoit limit\u00e9e, ils peuvent contribuer aux diff\u00e9rences de couleur et\naux variations locales de la roche.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n    <figure class=\"r9-figure\">\r\n      <img decoding=\"async\"\r\n        src=\"https:\/\/renier.be\/wp-content\/uploads\/2026\/08\/09_05_andere_mineralen_kleine_bestanddelen_belgische_blauwe_hardsteen.png\"\r\n        alt=\"Autres min\u00e9raux et composants mineurs pr\u00e9sents dans la pierre bleue belge\"\r\n        loading=\"lazy\" data-neo-global--processed-neo-replace=\"true\">\r\n      <figcaption>\r\n        Figure 9.5 \u2014 Autres min\u00e9raux et composants mineurs.\r\n      <\/figcaption>\r\n    <\/figure>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- 9.6 -->\r\n\r\n<section class=\"r9-section alt\" id=\"h9-6\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-section-head\">\r\n\r\n      <div class=\"r9-section-number\">9.6<\/div>\r\n\r\n      <h2>Pourquoi cette pierre est-elle bleu-gris ?<\/h2>\r\n\r\n      <p>\r\n        Sa couleur bleu-gris caract\u00e9ristique r\u00e9sulte de la combinaison\n d'une matrice calcaire fine, de mati\u00e8re organique et de tr\u00e8s petits\n composants min\u00e9raux. La perception finale de la couleur est\n en outre influenc\u00e9e par la finition de surface choisie.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n    <figure class=\"r9-figure\">\r\n      <img decoding=\"async\"\r\n        src=\"https:\/\/renier.be\/wp-content\/uploads\/2026\/08\/09_06_waarom_belgische_blauwe_hardsteen_blauwgrijs_is.png\"\r\n        alt=\"Explication de la couleur bleu-gris de la pierre bleue belge\"\r\n        loading=\"lazy\" data-neo-global--processed-neo-replace=\"true\">\r\n      <figcaption>\r\n        Figure 9.6 \u2014 Pourquoi la pierre bleue belge est-elle bleu-gris ?\r\n      <\/figcaption>\r\n    <\/figure>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- 9.7 -->\r\n\r\n<section class=\"r9-section\" id=\"h9-7\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-section-head\">\r\n\r\n      <div class=\"r9-section-number\">9.7<\/div>\r\n\r\n      <h2>Composition vue au microscope<\/h2>\r\n\r\n      <p>\r\n        Au microscope, on voit clairement comment les fragments fossiles,\nla calcite et la matrice fine forment ensemble une roche compacte.\n\u00c0 cette \u00e9chelle, des structures deviennent visibles qui sont \u00e0 peine\nou pas du tout perceptibles \u00e0 l'\u0153il nu.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n    <figure class=\"r9-figure\">\r\n      <img decoding=\"async\"\r\n        src=\"https:\/\/renier.be\/wp-content\/uploads\/2026\/08\/09_07_samenstelling_onder_microscoop_belgische_blauwe_hardsteen.png\"\r\n        alt=\"Composition microscopique de la pierre bleue belge\"\r\n        loading=\"lazy\" data-neo-global--processed-neo-replace=\"true\">\r\n      <figcaption>\r\n        Figure 9.7 \u2014 Composition vue au microscope.\r\n      <\/figcaption>\r\n    <\/figure>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- 9.8 -->\r\n\r\n<section class=\"r9-section alt\" id=\"h9-8\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-section-head\">\r\n\r\n      <div class=\"r9-section-number\">9.8<\/div>\r\n\r\n      <h2>R\u00e9sum\u00e9 : la composition de la pierre<\/h2>\r\n\r\n      <p>\r\n        La pierre bleue belge est le r\u00e9sultat d\u2019une combinaison particuli\u00e8re\nde calcite, de composants fossiles, d\u2019une matrice fine et\nde petits composants min\u00e9raux. Ensemble, ils forment le mat\u00e9riau que\nnous reconnaissons aujourd\u2019hui comme une pierre naturelle compacte et riche en fossiles.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n    <figure class=\"r9-figure\">\r\n      <img decoding=\"async\"\r\n        src=\"https:\/\/renier.be\/wp-content\/uploads\/2026\/08\/09_08_samenvatting_samenstelling_belgische_blauwe_hardsteenv2.png\"\r\n        alt=\"R\u00e9sum\u00e9 de la composition de la pierre bleue belge\"\r\n        loading=\"lazy\" data-neo-global--processed-neo-replace=\"true\">\r\n      <figcaption>\r\n        Figure 9.8 \u2014 R\u00e9sum\u00e9 de la composition de la pierre bleue belge.\r\n      <\/figcaption>\r\n    <\/figure>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- SLOT -->\r\n\r\n<section class=\"r9-callout\">\r\n  <div class=\"r9-inner\">\r\n\r\n    <div class=\"r9-callout-box\">\r\n\r\n      <h3>De la composition \u00e0 la structure<\/h3>\r\n\r\n      <p>\r\n        Nous savons d\u00e9sormais de quoi est compos\u00e9e la pierre bleue belge.\nMais la mani\u00e8re dont ces composants sont organis\u00e9s au sein de la\nroche est tout aussi importante. Au chapitre 10, nous \u00e9tudierons\ndonc la texture, la granulom\u00e9trie et la structure poreuse de la pierre.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n<\/section>\r\n\r\n\r\n<!-- NAV -->\r\n\r\n<nav class=\"r9-nav\">\r\n  <div class=\"r9-inner r9-nav-inner\">\r\n\r\n    <a href=\"https:\/\/renier.be\/fr\/a-examine-la-pierre\/\">\r\n      <small>Pr\u00e9c\u00e9dent<\/small>\r\n      <strong>\u2190 Livre III \u2013 L'examen de la pierre<\/strong>\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/renier.be\/fr\/a-examine-la-pierre\/texture-des-pores-de-la-pierre-bleue-belge\/\"\r\n       style=\"text-align:right;\">\r\n      <small>Chapitre suivant<\/small>\r\n      <strong>Chapitre 10 \u2013 Texture et pores \u2192<\/strong>\r\n    <\/a>\r\n\r\n  <\/div>\r\n<\/nav>\r\n\r\n<\/div>\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>BOEK III \u00b7 HOOFDSTUK 9 Samenstelling van Belgische Blauwe Hardsteen Welke mineralen, fossielen en fijne bestanddelen vormen deze natuursteen? Belgische Blauwe Hardsteen lijkt op het eerste gezicht een homogeen gesteente. Onder de microscoop verschijnt echter een veel complexere wereld van calciet, fossiele resten, fijne kalksteenmatrix en kleine minerale bestanddelen. Samen bepalen ze het karakter, de [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":7388,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-7379","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Boek III - Hoofdstuk 9 -Samenstelling van Belgische Blauwe Hardsteen - Renier Natuursteen<\/title>\n<meta name=\"description\" content=\"Ontdek de samenstelling van Belgische Blauwe Hardsteen: calciet, fossielen, bioklasten, kalksteenmatrix en mineralen onder de microscoop.\" \/>\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\/fr\/a-examine-la-pierre\/composition-de-la-pierre-bleue-belge\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Boek III - Hoofdstuk 9 -Samenstelling van Belgische Blauwe Hardsteen - Renier Natuursteen\" \/>\n<meta property=\"og:description\" content=\"Ontdek de samenstelling van Belgische Blauwe Hardsteen: calciet, fossielen, bioklasten, kalksteenmatrix en mineralen onder de microscoop.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/renier.be\/fr\/a-examine-la-pierre\/composition-de-la-pierre-bleue-belge\/\" \/>\n<meta property=\"og:site_name\" content=\"Renier Natuursteen\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/reniernatuursteen\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-31T11:38:47+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture est.\" \/>\n\t<meta name=\"twitter:data1\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/renier.be\\\/de-steen-onderzocht\\\/samenstelling-belgische-blauwe-hardsteen\\\/\",\"url\":\"https:\\\/\\\/renier.be\\\/de-steen-onderzocht\\\/samenstelling-belgische-blauwe-hardsteen\\\/\",\"name\":\"Boek III - Hoofdstuk 9 -Samenstelling van Belgische Blauwe Hardsteen - Renier Natuursteen\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/renier.be\\\/#website\"},\"datePublished\":\"2026-08-31T10:05:19+00:00\",\"dateModified\":\"2026-08-31T11:38:47+00:00\",\"description\":\"Ontdek de samenstelling van Belgische Blauwe Hardsteen: calciet, fossielen, bioklasten, kalksteenmatrix en mineralen onder de microscoop.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/renier.be\\\/de-steen-onderzocht\\\/samenstelling-belgische-blauwe-hardsteen\\\/#breadcrumb\"},\"inLanguage\":\"fr-BE\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/renier.be\\\/de-steen-onderzocht\\\/samenstelling-belgische-blauwe-hardsteen\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/renier.be\\\/de-steen-onderzocht\\\/samenstelling-belgische-blauwe-hardsteen\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/renier.be\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Boek III \u2013 De steen onderzocht\",\"item\":\"https:\\\/\\\/renier.be\\\/de-steen-onderzocht\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Boek III &#8211; 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