Hainan black basalt Nature Stone quarry Dark igneous rock that is low in silica content and comparatively rich in iron and magnesium. Some basalts are glassy (have no visible crystals), and many are very fine-grained and compact. Basaltic lavas may be spongy or pumice-like. Olivine and augite are the most common minerals in basalts; plagioclase is also present. Basalts may be broadly classified into two main groups. Calc-alkali basalts predominate among the lavas of mountain belts; the active volcanoes of Mauna Loa and Kilauea in Hawaii erupt calc-alkali lavas. Alkali basalts predominate among the lavas of the ocean basins and are also common in mountain belts.Materials : Block of Hainan black basalt natural stoneFour side cut Hainan black basalt 180 cm *60 upcm *2 cm/3cmsome common size of Haina black honed and polish finish LengthwidthThicknessPCS/CTNCTN/CrateCrates/20ftContainer12"(305mm)×12"(305mm)×3/8"(10mm)10362212"(305mm)×24"(610mm)×3/8"(10mm)6203616"(407mm)×16"(407mm)×3/8"(10mm)10362218"(457mm)×18"(457mm)×3/8"(10mm)10362224"(610mm)×24"(610mm)×3/8"(10mm)6203618"(457mm)×18"(457mm)×3/4"(20mm)6203624"(610mm)×24"(610mm)×3/4"(20mm)62036Black polish basalt tile standard size Carton package export to Europe .Lava nature split stone for exterior wall cladding Material: Tiny Holes Lava ; Finished: Mushroom SurfaceMaterial: Tiny Holes Lava house ; Finished:Mushroom SurfaceMore close Imageof the lava house Lava sone for outdoor pavement . Random size Lava stone for park paver . 3)Paving Floor: 30x30,30x60,60x60,40x40,50x50x1.5cm/2cm/3cm/4cm/5cm, customer order-Steps, tops4)Other Surface Finishes: Polished,Honed,Flamed,Bushhammered,Antique,Chiseled etcPlease feel free to contact us if you have any requirement . Warm welcome !