By Chisom Ibemere
Radiolarite is a variety of sedimentary rock composed of the microscopic skeletons of radiolarians, marine planktonic organisms with intricate silica shells.
It was first described in 1834 by the naturalist Horace-Bénédict de Saussure.
Radiolarite majorly occur in marine sedimentary rocks all over the globe mostly in areas where there are large deposits of radiolarians.
It is common mineral in areas with high levels of silica, such as the Pacific Rim of Fire. Some of the largest deposits of radiolarite are found in California, Japan, and Italy.
Radiolarite is known for its unique properties and aesthetic beauty and are used basically for decorative purposes. It is commonly used for making countertops, flooring, and wall cladding, as well as for sculpture and other ornamental objects.
Radiolarite is a hard, dense rock that is made up of silica. It has a distinctive pattern of small, intricate fossils that give it a unique, marbled appearance.
It typically ranges in color from pale yellow to brown or gray, depending on the location and composition of the rocks where it is found. It has a Mohs hardness rating of 6.5-7, making it relatively hard and durable.
The value of Radiolarite varies greatly depending on its quality and locations. It is a relatively rare and expensive stone, and as such, is primarily used for high-end decorative applications.
The global value of radiolarite is difficult to estimate, as it is not as commonly used as some other types of stone.
However, it is estimated that the market for radiolarite is currently worth millions of dollars.
