|Company Name||:||GÜNKEM-GÜNDÜZ KİMYEVİ MADDELER İTHALAT SANAYİ VE TİCARET ANONİM ŞİRKETİ|
|Location||:||İSTANBUL / KADIKÖY|
|Tel||:||+90(216) 315 92 92|
|Fax||:||+90(216) 315 92 22|
MINERALS BARYTE, WITHERITE Barite is a mineral consisting of barium sulfate. It most often occurs in hydrothermal veins and as veins in limestones. It is a relatively inert mineral with a high density. It is the primary ore of barium. The most common use of barite is as a weighting agent in drilling muds. Most barite produced is used as a weighting agent in drilling muds. These high density muds are circulated down the drill stem and return to the surface between the drill stem and the wall of the well. This action effectively flushes the cuttings produced by the drill and carries them to the surface. Barite is also used as a pigment in paints and as a weighted filler for paper and cloth. Barite's high density makes it opaque to x-rays. If it is given to a patient as a drink or enema it can be used to image the shape of internal organs by x-ray. WITHERITE Witherite is a rare mineral, especially since it easily alters to the more common mineral Barite. It alters when sulfuric acid from sulfide minerals dissolves the Witherite, and the sulfur combines with the barium element to form Barite. Witherite is also formed from Calcite that loses the calcium element which instead gets replaced by barium, thus forming Witherite in the process. Thin, long crystals and aggregates of Witherite should be handled carefully, as they are fragile and easily damaged.
MINERALS BENTONITE is an absorbent aluminium phyllosilicate, essentially impure clay consisting mostly of montmorillonite. Bentonite usually forms from weathering of volcanic ash, most often in the presence of water. However, the term bentonite, as well as a similar clay called tonstein, has been used to describe clay beds of uncertain origin. For industrial purposes, two main classes of bentonite exist: sodium and calcium bentonite.
MINERALS SELESTITE Pure Celestine is colorless, but impurities give this mineral a wide range of colors. The most common color is light blue, which is often caused by irradiation of gold. This light blue tint may be present in a whole specimen, or may only be confined to one area. Celestine is isomorphous with Barite, and may partially replace it. Celestine is the most common mineral containing the element strontium, and is its primary ore. It is a popular mineral among collectors.
MINERALS KAOLIN & OTHER KAOLIN CLAYS Kaolin is a very common mineral. Kaolin is a soft, earthy, usually white mineral, produced by the chemical conditioning of aluminum silicate mineral. Kaolin is used in ceramics, medicine, bricks, coated paper, as a food additive, in toothpaste, as a light diffusing material in white incandescent light bulbs, and in cosmetics and as a filler in many other applications. Kaolin has even been used for spiritual and healing purposes! It is also being formulated as a spray to be applied to fruits and vegetables to prevent insect damage and infestation. The largest and most common use is in the paper industry. It is the main ingredient in creating "glossy" paper. Other materials such as calcium carbonate (which is an alternative material) competes with Kaolin as the most important source/ingredient for creating shiny paper.
MINERALS OTHER MINERAL SUBSTANCES VERMICULITE, SEPIOLITE, ARSENIC SULFUR, ZIRCONIUM SILICATE