Luca Alciati & Laura Fiora

Antonio Molina,
Technological Centre for Marble (Murcia), Spain
laboratorio@ctmarmol.es

The US 305/2011 Regulation for building products published on 9 March, 2011 comes into effect on 1 July, 2013, substituting the current Directive 89/106/CE for Building Products. The new Regulation does not impose on the manufacturers of natural stone more conditions than those in the Directive, but obliges them to make some changes in the documentation of the products.
 

Among the thousands of stones being sold in the international markets, there is one which from the distance is mistaken for wood because of its physical appearance: the sandstone Rainbow / Teakwood This unique physical characteristic has given it a very special niche in the market, and it has become extremely popular all over the world because it is perhaps the only natural stone with an aesthetic aspect that resembles wood.

One of the most well known granites from India in the world markets is TAN BROWN. It is valued for applications in decoration. This article highlights the different varieties of this material since, as is so often the case in natural stone, there is often a wide range of colours and varieties existing within any single material.

In the international stone industry trade fairs any observer would have noticed that several Indian companies (especially from the north), exhibit a wide range of stones that look like sandstone. Most of the time these stones are quartzite, though in commercial parlance, they are often sold as sandstone. This article explores the world of quartzite in India.