Asbestos is the commercial name given to a naturally occurring fibrous silicate mineral commonly used in construction materials and other products because of its high heat resistance, strength and durability, however there are many types of asbestos. Over time, exposure to asbestos may lead to asbestosis, mesothelioma, lung cancer and other cancers.

Asbestos was mined in many countries, including Canada, Russia, South Africa, South America, India.

Asbestos fibres can be split into in two distinct groups; amphiboles and serpentine, based on their silicate crystal structure type.

There are six minerals in the asbestos group;

However only ‘White’, ‘Brown’ and ‘Blue’ types of asbestos have had any real commercial significance as they are the most naturally abundant minerals of the group. It should be noted that uses of sprayed coating ceased in 1974 and asbestos lagging is unlikely to be found in buildings constructed after 1975.