Discover the beauty and durability of Andino Grey Granite and Steel Grey Granite New York at HG Stones Our experts provide top quality natural stone products for any project Explore our selection and find the perfect granite for your space. Granite, by definition is an igneous rock with a specific mineral blend consisting of quartz, mica, and feldspar. The name comes from the Latin term “Granum” for grain which refers to the coarse-grained structure. The natural attributes of granite are hardness and toughness which made it a widespread material choice for modern day building.