{"id":7136,"date":"2026-05-11T18:35:10","date_gmt":"2026-05-11T18:35:10","guid":{"rendered":"https:\/\/arvernes-gemmes.com\/?page_id=7136"},"modified":"2026-05-11T18:45:59","modified_gmt":"2026-05-11T18:45:59","slug":"the-hardness","status":"publish","type":"page","link":"https:\/\/arvernes-gemmes.com\/en\/the-hardness\/","title":{"rendered":"The Hardness"},"content":{"rendered":"<style>.wp-block-kadence-advancedheading.kt-adv-heading7136_6458eb-4a, .wp-block-kadence-advancedheading.kt-adv-heading7136_6458eb-4a[data-kb-block=\"kb-adv-heading7136_6458eb-4a\"]{margin-bottom:var(--global-kb-spacing-sm, 1.5rem);font-size:24px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading7136_6458eb-4a mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading7136_6458eb-4a[data-kb-block=\"kb-adv-heading7136_6458eb-4a\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading7136_6458eb-4a img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading7136_6458eb-4a[data-kb-block=\"kb-adv-heading7136_6458eb-4a\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h1 class=\"kt-adv-heading7136_6458eb-4a wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading7136_6458eb-4a\">What is the hardness of a mineral?<\/h1>\n\n\n<style>.kadence-column7136_4db403-36 > .kt-inside-inner-col,.kadence-column7136_4db403-36 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column7136_4db403-36 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column7136_4db403-36 > .kt-inside-inner-col{flex-direction:column;}.kadence-column7136_4db403-36 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column7136_4db403-36 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column7136_4db403-36{position:relative;}@media all and (max-width: 1024px){.kadence-column7136_4db403-36 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column7136_4db403-36 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}.kadence-column7136_4db403-36 {text-align: justify;}<\/style>\n<div class=\"wp-block-kadence-column kadence-column7136_4db403-36\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedheading.kt-adv-heading7136_262e26-7a, .wp-block-kadence-advancedheading.kt-adv-heading7136_262e26-7a[data-kb-block=\"kb-adv-heading7136_262e26-7a\"]{font-size:var(--global-kb-font-size-md, 1.25rem);font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading7136_262e26-7a mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading7136_262e26-7a[data-kb-block=\"kb-adv-heading7136_262e26-7a\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading7136_262e26-7a img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading7136_262e26-7a[data-kb-block=\"kb-adv-heading7136_262e26-7a\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading7136_262e26-7a wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading7136_262e26-7a\">Definition<\/h2>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading7136_91d62a-db, .wp-block-kadence-advancedheading.kt-adv-heading7136_91d62a-db[data-kb-block=\"kb-adv-heading7136_91d62a-db\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading7136_91d62a-db mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading7136_91d62a-db[data-kb-block=\"kb-adv-heading7136_91d62a-db\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading7136_91d62a-db img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading7136_91d62a-db[data-kb-block=\"kb-adv-heading7136_91d62a-db\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading7136_91d62a-db wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading7136_91d62a-db\">It refers to a material\u2019s resistance to scratching. It is one of the most important physical properties for evaluating the durability of a gemstone. The hardness of a stone is measured according to the Mohs scale, which classifies minerals from 1 to 10, with 1 being the lowest hardness (for example, talc) and 10 the highest (diamond).<\/p>\n<\/div><\/div>\n\n\n<style>.kb-image7136_2e012a-64.kb-image-is-ratio-size, .kb-image7136_2e012a-64 .kb-image-is-ratio-size{max-width:839px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image7136_2e012a-64.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image7136_2e012a-64 .kb-image-is-ratio-size{align-self:unset;}.kb-image7136_2e012a-64 figure{max-width:839px;}.kb-image7136_2e012a-64 .image-is-svg, .kb-image7136_2e012a-64 .image-is-svg img{width:100%;}.kb-image7136_2e012a-64 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image7136_2e012a-64\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/arvernes-gemmes.com\/wp-content\/uploads\/2026\/05\/Mohs-hardness-scale.webp\" class=\"kb-advanced-image-link\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"462\" src=\"https:\/\/arvernes-gemmes.com\/wp-content\/uploads\/2026\/05\/Mohs-hardness-scale-1024x462.webp\" alt=\"Mohs Hardness scale\" class=\"kb-img wp-image-7135\" srcset=\"https:\/\/arvernes-gemmes.com\/wp-content\/uploads\/2026\/05\/Mohs-hardness-scale-1024x462.webp 1024w, https:\/\/arvernes-gemmes.com\/wp-content\/uploads\/2026\/05\/Mohs-hardness-scale-300x135.webp 300w, https:\/\/arvernes-gemmes.com\/wp-content\/uploads\/2026\/05\/Mohs-hardness-scale-768x346.webp 768w, https:\/\/arvernes-gemmes.com\/wp-content\/uploads\/2026\/05\/Mohs-hardness-scale-1536x693.webp 1536w, https:\/\/arvernes-gemmes.com\/wp-content\/uploads\/2026\/05\/Mohs-hardness-scale-600x271.webp 600w, https:\/\/arvernes-gemmes.com\/wp-content\/uploads\/2026\/05\/Mohs-hardness-scale.webp 1774w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption><em>Mohs Hardness scale \u00a9 Arvernes-Gemmes<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the hardness of a mineral? Definition It refers to a material\u2019s resistance to scratching. It is one of the most important physical properties for evaluating the durability of a gemstone. The hardness of a stone is measured according to the Mohs scale, which classifies minerals from 1 to 10, with 1 being the&#8230;<\/p>\n","protected":false},"author":1,"featured_media":7135,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"wf_page_folders":[258],"class_list":["post-7136","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/arvernes-gemmes.com\/en\/wp-json\/wp\/v2\/pages\/7136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arvernes-gemmes.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/arvernes-gemmes.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/arvernes-gemmes.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/arvernes-gemmes.com\/en\/wp-json\/wp\/v2\/comments?post=7136"}],"version-history":[{"count":0,"href":"https:\/\/arvernes-gemmes.com\/en\/wp-json\/wp\/v2\/pages\/7136\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arvernes-gemmes.com\/en\/wp-json\/wp\/v2\/media\/7135"}],"wp:attachment":[{"href":"https:\/\/arvernes-gemmes.com\/en\/wp-json\/wp\/v2\/media?parent=7136"}],"wp:term":[{"taxonomy":"wf_page_folders","embeddable":true,"href":"https:\/\/arvernes-gemmes.com\/en\/wp-json\/wp\/v2\/wf_page_folders?post=7136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}