Stone and Quartz Marble Marble has been a preferred building material for centuries. It is a rare combination of beauty and durability and is perfectly suited for interior applications. Quartz Quartz is an engineered stone manufactured by combining a small of amount of natural quartz with high end polymers and binders. Quartzite Quartzite is a naturally occurring metamorphic stone formed when intense pressure is applied to sandstone. granite Granite is a natural igneous stone whose hardness and aesthetic beauty make it the ideal choice for kitchen countertops as it is extremely resistant to staining and scratching. Limestone Limestone is a natural sedimentary stone. It’s soft and calming aesthetics are very appealing and perfect for many interior applications. Travertine Travertine is a sedimentary rock that is similar to marble in terms of hardness. Slate Slate is a natural metamorphic stone ideal for both interior and exterior applications. Onyx Onyx is a beautiful natural stone that has translucent properties. Its unique visual appeal makes it an ideal choice for highly designed spaces.