{"id":4424,"date":"2026-10-07T18:58:37","date_gmt":"2026-10-07T18:58:37","guid":{"rendered":"https:\/\/rokhamhub.com\/?p=4424"},"modified":"2026-10-10T07:26:31","modified_gmt":"2026-10-10T07:26:31","slug":"%d8%a7%d9%84%d8%a8%d8%a7%d8%b2%d9%84%d8%aa-%d8%a7%d9%84%d8%b1%d9%85%d8%a7%d8%af%d9%8a","status":"publish","type":"post","link":"https:\/\/rokhamhub.com\/en\/%d8%a7%d9%84%d8%a8%d8%a7%d8%b2%d9%84%d8%aa-%d8%a7%d9%84%d8%b1%d9%85%d8%a7%d8%af%d9%8a\/","title":{"rendered":"Gray Basalt"},"content":{"rendered":"<p class=\"wp-block-wd-paragraph wd-757279c2\"><strong>Gray Basalt<\/strong><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b3e62eba\">It is used for road paving and outdoor floors.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-83cdf421\">The complete, detailed technical sheet <strong>for gray basalt<\/strong> based on its physical and geological properties:<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-598c896f\"><strong>Profile: Gray Basalt<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stone name<\/strong><strong>:<\/strong> Gray basalt (Grey Basalt)<\/li>\n\n\n\n<li><strong>Trade name<\/strong><strong>:<\/strong> Gray basalt, Chinese gray basalt, gray volcanic basalt stone.<\/li>\n\n\n\n<li><strong>Geological classification<\/strong><strong>:<\/strong> Extrusive volcanic igneous rock (Volcanic Igneous Rock).<\/li>\n\n\n\n<li><strong>Type<\/strong><strong>:<\/strong> 100% natural rock.<\/li>\n\n\n\n<li><strong>Quarry<\/strong><strong>:<\/strong> Found in areas of ancient lava flows; well-known quarries include Vietnam, China, and parts of Jordan, Syria and Yemen.<\/li>\n\n\n\n<li><strong>Color and appearance<\/strong><strong>:<\/strong> Light to medium gray (Light to Medium Grey), with a fine speckled or very granular appearance, and often more uniform in color distribution than black basalt.<\/li>\n\n\n\n<li><strong>Hardness<\/strong><strong>:<\/strong> Ranges from <strong>5.5 <\/strong><strong>\u00a0to 6.5<\/strong> on the Mohs scale (Mohs Scale), an excellent hardness that makes it superior to most limestones and marbles.<\/li>\n\n\n\n<li><strong>Water absorption:<\/strong> Low, ranging from <strong>0.5% <\/strong><strong>\u00a0to 1.5<\/strong><strong>%<\/strong> Very slightly higher than black basalt due to the nature of its fine voids.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/li>\n\n\n\n<li><strong>Density<\/strong><strong>:<\/strong> Ranges from <strong>2.6 <\/strong><strong>\u00a0to 2.8 g\/cm\u00b3<\/strong>.<\/li>\n\n\n\n<li><strong>Abrasion and scratch resistance<\/strong><strong>:<\/strong> Very high; it withstands friction and heavy pedestrian and vehicle traffic without surface wear.<\/li>\n\n\n\n<li><strong>Weather resistance<\/strong><strong>:<\/strong> Excellent; resistant to high temperatures, frost and humidity, and its color does not fade or change under sunlight (UV).<\/li>\n\n\n\n<li><strong>Ideal use<\/strong><strong>:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Sidewalks, public squares and gardens, in the form of cobblestones (Cobblestones) or tiles.<\/li>\n\n\n\n<li>Swimming pool surrounds (thanks to its moderate color, which does not absorb heat to a burning degree).<\/li>\n\n\n\n<li>Modern building facades (Modern Cladding).<\/li>\n\n\n\n<li>Outdoor floors and driveways for homes and villas (Driveways).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Suitable finishes<\/strong><strong>:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Tooled \/ bush hammer<\/strong><strong> (Bush-hammered) :<\/strong>To give a rough, anti-slip texture.<\/li>\n\n\n\n<li><strong>Matte<\/strong><strong> (Honed) :<\/strong>A smooth, moderate texture that brings out the beauty of the gray color without shine.<\/li>\n\n\n\n<li><strong>Blasted \/ rock face<\/strong><strong> (Split Face) :<\/strong>A prominent natural rocky look widely used on facades.<\/li>\n\n\n\n<li><strong>Pitted or flame-treated<\/strong><strong> (Flamed) :<\/strong>Gives it a rough natural texture and excellent slip resistance.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Advantages<\/strong><strong>:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Moderate color<\/strong><strong>:<\/strong> It does not absorb the sun's heat as intensely as black basalt, making it comfortable to walk on in summer.<\/li>\n\n\n\n<li>High durability and a very long service life.<\/li>\n\n\n\n<li>A modern look that fits perfectly with \"modern\" and minimalist (Minimalist) architectural designs.<\/li>\n\n\n\n<li>Very good stain resistance when properly treated.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Disadvantages<\/strong><strong>:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Very slightly less hard than dark black basalt.<\/li>\n\n\n\n<li>Requires installation skill due to its weight and hardness during cutting.<\/li>\n\n\n\n<li>Some types may show temporary damp patches after rain until they dry completely, due to their microscopic porosity.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Maintenance<\/strong><strong>:<\/strong> Easy; periodic cleaning with water and neutral cleaners. Applying a sealer (Sealer) once every few years is recommended in areas exposed to oils or heavy dirt to keep it clean.<\/li>\n\n\n\n<li><strong>Alternatives<\/strong><strong>: <\/strong>Gray granite (such as Sherka Gray or Flamenco), andesite stone (Andesite), or hard gray limestone.<\/li>\n\n\n\n<li><strong>Average price<\/strong><strong>:<\/strong> Medium to high; it is generally slightly cheaper than pure black basalt, and the price depends on the country of origin and the required thickness (such as 2 cm tiles versus 5 or 10 cm paving cubes).<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"","protected":false},"author":16,"featured_media":4425,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_rhkc_fx":50,"_rhkc_fy":50,"_rhkc_fz":1,"footnotes":""},"categories":[437],"tags":[],"class_list":["post-4424","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-egyptian-materials"],"_links":{"self":[{"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/posts\/4424","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/comments?post=4424"}],"version-history":[{"count":1,"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/posts\/4424\/revisions"}],"predecessor-version":[{"id":4426,"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/posts\/4424\/revisions\/4426"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/media\/4425"}],"wp:attachment":[{"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/media?parent=4424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/categories?post=4424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rokhamhub.com\/en\/wp-json\/wp\/v2\/tags?post=4424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}