Exploration, production and utilisation of construction raw materials play a key role in the development of all countries whether industrial or developing. Construction raw materials are used for the development and expansion of infrastructure in the broadest sense of the word, involving the creation of housing and transport connections, and the numerous products which simplify our daily lives. Geologists, construction engineers, regional planners, etc., in developing countries are increasingly frequently confronted with the need to evaluate the usability and quality of occurrences and deposits of construction raw materials. However, a lack of geological and technical expertise in many developing and emerging countries often prevents the utilisation of local mineral raw materials for use in construction. In an effort to support engineers and planners in making decisions, the most important assessment criteria have been compiled in this "manual" in a user-oriented and intuitive way. The manual is intended to stimulate ideas in developing countries, to kick-start projects, and to initiate self-help.