Profile: Triton Stone Group New Orleans, LLC specializes in providing granite and natural stone products. Our products include granite, marble, travertine, stone enhancers, sinks, tools and used & new machinery. Granite is a fine to coarse-grained, igneous rock formed by volcanic action consisting of quartz, feldspar, and mica, with accessory minerals. Marble is metamorphosed limestone, composed of fairly pure calcite. It is extensively used for sculpture, as a building material, and in many other applications.