The description you provided paints a vivid picture of a material called "Ultramarine," which seems to be elegantly designed for architectural use. The striking combination of a deep blue base interlaced with gold veining recalls imagery of the ocean's depths, suggesting a design both luxurious and enigmatic. This material could be a favored choice for architects and interior designers aiming to create unique, eye-catching environments in various spaces such as lobbies, bathrooms, kitchens, or even artistic installations. The reference to its origin, inspired by the ocean floor, not only adds to its aesthetic appeal but also suggests a story behind its creation, potentially adding a layer of intrigue and allure to the projects it is used in.