Search results
Results from the WOW.Com Content Network
Topaz from the Jos Plateau in Plateau State. The mining of minerals in Nigeria accounts for only 0.3% of its gross domestic product, due to the influence of its vast oil resources. The domestic mining industry is underdeveloped, leading to Nigeria having to import minerals that it could produce domestically, such as salt or iron ore. The rights ...
Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula Al 2 Si O 4 (F, OH) 2.It is used as a gemstone in jewelry and other adornments. Common topaz in its natural state is colorless, though trace element impurities can make it pale blue or golden brown to yellow-orange. [7]
The blue topaz is found naturally in many locations. Covered in topaz to the extent that topaz is found widely. Disputed by the article cited above. The Texas Natural Science Center exhibits a 1778 carat blue topaz found in a Brazilian mine. If this is a notable stone (and can be verified as such), it may warrant inclusion in the topaz page.
Red beryl, a rare mineral found at Topaz Mountain, occurs as small crystals, often attached to other mineral crystals. It is estimated that one red beryl crystal is found for every 150,000 diamonds. [5] Prices for top quality natural red beryl can be as high as $10,000 per carat for faceted stones. [6] The ground around Topaz Mountain
In 1979, Gemstones Corporation of Pakistan was established to develop the gemstones sector in Pakistan, however in 1997 the corporation liquidated. [3] Now a number of organizations are working in this sector including All Pakistan Commercial Exporters Association of Rough & Unpolished Precious and Semi Precious Stones (APCEA) and Pakistan Gems and Jewellery Development Company (PGJDC).
These include peridot, aquamarine, topaz, ruby, emerald, rare-earth minerals bastnaesite and xenotime, sphene, tourmaline, and many varieties and types of quartz. [ 1 ] The Pakistan Mineral Development Corporation is the responsible authority for the support and development of the mining industry.
It is located near the centre of Nigeria and includes a range of hills surrounding the Jos Plateau. [6] Plateau State is described as "The Home of Peace and Tourism". [7] The state has a population of around 4.7 million people. [8] Its capital city is Jos. Terminus market
Rainer Rupp (born September 21, 1945 in Saarlouis, Germany) is a former top spy who worked under the codenames Mosel and later Topaz for the East German intelligence service HVA (General Reconnaissance Administration) in the NATO headquarters in Brussels from 1977 until 1989, releasing documents of the highest importance (Cosmic Top Secret) to the Eastern Bloc.