| Company Name | : | POZİTİF SANATSAL ETKİNLİKLER TURİZM VE ORGANİZASYON TİC.LTD.ŞTİ. |
| Location | : | İSTANBUL / ÜMRANİYE |
| Web Site | : | |
| Tel | : | +90(212) 000 00 00 |
| Fax | : |
MINERALS SETTS, CUBSTONES AND FLAGSTONES, OF NATURAL STONES Natural building stones are rocks of various origins which are processed and sized to be used in construction. Marble, traver tine,granite, andesite, basalt and diabase are among impor tant building stones.
MINERALS QUARTZ Quartz is a chemical compound consisting of one part silicon and two parts oxygen. It is silicon dioxide (SiO2). It is the most abundant mineral found at Earth's surface and its unique properties make it one of the most useful natural substances. Quartz is one of the most useful natural materials. Its usefulness can be linked to its physical and chemical properties. It has a hardness of seven on the Mohs Scale which makes it very durable. It is chemically inert in contact with most substances. It has electrical properties and heat resistance that make it valuable in electronic products. Its luster, color and diaphaneity make it useful as a gemstone and also in the making of glass.