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Vermiculite   (Mg,Fe2+,Al)3(Al,Si)4O10(OH)2·4(H2O)
In commerce, vermiculite which expands more than 10 times the original volume is regarded of good quality. With an expansion below 10 times the original volume, vermiculite is considered of low grade...(More..)

Mica   Mica is invaluable in the electrical industry because of its unique combination of physical, chemical and thermal properties, low power loss factor, dielectric constant and dielectric strength..(More..)

Feldspar   KAlSi3O8 - Orthoclase     KAlSi3O8 - Microcline    NaAlSi3O8 - CaAl2Si2O8 - Plagioclase     In the manufacture of high-class, colourless glass, feldspar should have a maximum of 0.1% Fe2O3 though upto 0.3% is permissible..(More..)

Quartz   Silicon dioxide SiO2 Quartz is the most abundant and most common mineral on the Earth. It is found in almost every geological environment and also it is at least a component of almost every rock type. It has a hexagonal crystal structure and is made of trigonal crystallized silica. It is most varied in terms of varieties, colors and forms...(More..)

Perlite   Perlite is an amorphous volcanic glass which has a relatively high water content and occurs naturally. It has one of the most unusual property, i.e. it greatly expands when sufficiently heated.(More..)

Marble   Marble is a metamorphosed limestone. It is composed of pure calcite and is extensively used for sculpture, and as a building material. The common term, faux marble or faux marbling is a wall painting technique which imitates the color patterns of real marble. The marble dusts are combined with cement or synthetic resins to make reconstituted or cultured marble.(More..)

Biotite   Potassium iron magnesium aluminum silicate hydroxide fluoride K(Fe,Mg)3AlSi3O10(F,OH)2.. (More..)

Fire Clay   A good fireclay should have 24-26% plasticity and shrinkage after firing should be within 6-8% maximum. It should also not contain more than 25% Fe2O3.(More..)

Granite
   The granitization theory states that granite is formed in place by extreme metamorphism..(More..)

Kaolinite
   Aluminum Silicate Hydroxide Al2Si2O5(OH)4   Kaolinite shares the same chemistry as the minerals halloysite, dickite and nacrite.
The History Says Kaolinite is also known as china clay and kaolin, named after Gaoling ("High Hill") in Jingde Town, Jiangxi, China. It was Discovered in the year 1867 in Kao-Ling, China. (More..)

Stone Slabs
   Stone slab is a thick, broad piece of stone which can be further used to create a large variety of artifacts and things of use in kitchen, living rooms and garden. In factory the stone slabs are the result of the transformation of raw materials exposed to extremely high temperatures, extremely high pressure and an exclusive process for surface randomness control..(More..)

Tourmaline
    Most people consider tourmaline to be a single mineral. But in fact it is a group named for several different, but closely related minerals. Members of the Tourmaline Group are favorites among mineral collectors..(More..)
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