World Natural Stone Association (WONASA) is an association of some of the leading stone companies from all over the world who have come together to collectively face the challenges the Natural Stone industry faces in today's globalized world.

Best Quality & Design

The range and variety is almost unlimited through the different colors, textures, treatments and finishes of Natural Stones. No two pieces are the same, every stone is unique - unlike artificial industrial products.

Environmental Friendly

Natural stones does not contain any substances harmful to health. It can be used without any risks in the food sector and as kitchen tops. Extraction of Natural Stone does not use any chemicals or other contaminating substances unlike other minerals.


Natural Stone is highly customizable for any sector. It can be shaped to any form and its surface texture can be customized. Natural Stone does not wear out easily, for example in the case of pavements or stairs.


World Natural Stone Association (WONASA) is an association of some of the leading companies who have come together to address the new challenges in the fast changing globalised world and promote the natural stone industry. The new world characterised by fast economic growth in a large part of the world has meant the emergence of new markets with great potential and also the development of the natural stone industry in new countries. The members of this association feel there is a need to educate the users of natural stone industry of its advantages in different applications and to increase the level of professionalism among the professionals who work in the natural stone industry. Given the heightened sensitivity to environmental issues in todays world the members of WONASA feel it is necessary to highlight the innate greenness of natural stone, something the industry itself has often overlooked.



  •   To promote and increase the use of natural stone in the world markets.
  •   To educate the stone industry and society of the positive features and advantages of natural stones, a natural green product.
  •   To identify the new challenges facing the industry in the globalized, modern world and to develop solutions for facing them.
  •   To encourage new ideas, technology and exchange of information relevant to the natural stone industry in a mutually, beneficial way.
  •   To interact with international organisations and different government authorities, when necessary, with the objective of promoting the natural stone industry and encouraging industry friendly pro active policies.
  •   To ensure eco - friendly, sustainable mining with full safety standard.

FAQ's by Architects & Designers

Using Natural Stone
Why should I use natural stone?
Stone is a natural product. It is respectful with the environment, it does not destroy it. It has proved its validity as a building product through its use over centuries, proving its resistance and durability. It is easy to use, clean and easy to obtain. Natural stone encapsulates beauty, history, culture, and in the mind of the people in all the cultures of the world, it is intrinsically associated with luxury, quality and permanence.

Technical Parameters
What has the porosity to do with the water absorption of stone?
Porosity is related to water absorption and density of the stone. The higher the porosity, higher is the absorption of water phenomenon. Depending on the application, one should refer to the porosity scale.

Natural Stone Maintenance Guide

Types of Natural Stone
How to choose the right natural stone for a project?
Besides the appearance, colors and design of the natural stone the most important criteria for choosing the appropriate climate for indoor and outdoor applications are: frost resistance, abrasiveness, water absorption, acid resistance, suitability for flooring and cladding, polishing possibility.

Post Installation Care for Natural Stones
With what forms of staining and dirt are we dealing with?
1. Cleaning blown-up coarse dirt (e.g. sand) and fine dirt (e.g. coarse dust).
2. Cleaning adhering dirt, either water-soluble (e.g. soil or fine dust) or not water-soluble (e.g. residues of mortar, cement, or joint fillings, putty, adhesive labels, marker-lines).
3. Cleaning special stains (e.g. residues of epoxy resin or stains caused by packaging material that had been placed onto the surface).

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