KARACHI: Jehangir Khan Tareen, Minister of Industries and production, has stressed the need to establish Common Facility and Training Centre (CFTC) in the area from where the
marble and granite being excavated.
Presiding over the first meeting of Pakistan Stone Development Company (PASDEC) on Thursday he said there was more need of establishment of CFTC in Balochistan and NWFP. He said it would also help generate job opportunities for the people living in these two provinces.
He directed rehabilitation of the quarries damaged in October 8 devastate earthquake which hit Manshera and Balakot areas and said that assistance can be sought in this regard from the donor agencies.
The Board also approved the proposed Pakistan Stone Development Company (PASDEC) as private sector led-non-profit entity to be incorporated under section 42 of companies ordinance 1984 and a subsidiary of PIDC.
Mr Tareen directed that for the smooth functioning of PASDEC, management Gurus should be included in the board of directors with the chief executive officer from PIDC. The meeting also approved the Capital Cost of the company. Presiding the Gems and Jewelry Pakistan meeting, the minister set a target for of $500 million for 2010 and $ 2billion for 2015, which at present it is just $ 30 million.
Referring to the neighboring India, he told APP that its export of Gem and Jewelry for the current year is $ 17 billion. He said this company would work with the coordination of Export Promotion Bureau. The minister said that the company would incorporate within fifteen days, after which it will open its bank account and would be fully functional within a month. APP
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 | | Marble | MARBLE: CHARACTERISTICS
This standard includes general information on the characteristics
and common uses of marble and identifies typical problems
associated with the material.
INTRODUCTION
Marble is an extremely hard, metamorphic stone composed of calcite
(CaCO3). It is formed as a result of the recrystallization of
limestone under the intense pressure and heat of geologic
processes. The effect of this process is the creation of a stone
with a very tight crystalline structure and small but definite
porosity. Because of its structure, marble can take a very high
polish and is a very popular decorative stone for architectural and
sculptural uses. The limited porosity of marble, especially
polished marble, makes it less vulnerable to the leaching effects
of water. Calcium carbonate, however, of which marble is composed,
is highly susceptible to attack by acidic agents. Marble is
readily dissolved by acids, even very dilute acids, however the
actual results of acidic exposure will vary with the nature of the
acid. Chlorides, nitrates, sulfates and other chemical compounds
react differently with marble and produce various by-products,
which have a wide range of solubility and impact on the durability
of marble. For this reason, it is always important to determine
the exact type of pollutants causing marble deterioration.
Marble itself can be of two types, one composed of calcite and the
other of dolomite. Dolomitic marble is much more resistant to acid
attack than calcite marble. The color of marble ranges from the
brilliant white of calcite to black, including blue-gray, red,
yellow and green, depending upon the mineral composition.
TYPICAL USES
Marble has many decorative and structural uses. It is used for
outdoor sculpture as well as for sculpture bases; in architecture
it is used in exterior walls and veneers, flooring, decorative
features, stairways and walkways. The way in which the stone is
used may be a factor in limiting or controlling the severity of
exposure. The use or function of the marble may also affect the
feasibility of applying certain treatments, but type of use is not
the primary factor in the major types of deterioration and damage
to which marble is susceptible. | |  |
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Linear Mode
