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2. Quartzite - Wikipedia

   en.wikipedia.org/wiki/Quartzite

   Quartzite is a very hard rock composed predominantly of an interlocking mosaic of quartz crystals. The grainy, sandpaper-like surface is glassy in appearance. Minor amounts of former cementing materials, iron oxide, silica, carbonate and clay, often migrate during recrystallization, causing streaks and lenses to form within the quartzite. [1 ...

3. What's the Difference Between Quartz and Quartzite? - AOL

   www.aol.com/lifestyle/whats-difference-between...

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4. Taj Mahal replicas and derivatives - Wikipedia

   en.wikipedia.org/wiki/Taj_Mahal_replicas_and...

   The Taj Mahal in Agra, India (2004) The Taj Mahal, an iconic structure in Agra, Uttar Pradesh, India, has inspired numerous replicas and derivatives. [1] It is a major tourist attraction and has been regarded as one of the seven wonders of the modern world. [2] Commissioned in 1632 by Mughal emperor Shah Jahan to house the tomb of his favorite ...

5. Stones of India - Wikipedia

   en.wikipedia.org/wiki/Stones_of_India

   Stones of India. A pristine historical stone in Mahasthangarh, Bogra, Bangladesh. India possesses a wide spectrum of dimensional stones that include granite, marble, sandstone, limestone, slate, and quartzite, in various parts of the country. The stone industry in India has evolved into the production and manufacturing of blocks, flooring slabs ...

6. Quartz - Wikipedia

   en.wikipedia.org/wiki/Quartz

   Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO 4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2. Quartz is, therefore, classified structurally as a framework silicate mineral and ...

7. Quartz arenite - Wikipedia

   en.wikipedia.org/wiki/Quartz_arenite

   Quartz arenite makes up the Prospect Mountain Quartzite on top of Doso Doyabi, Nevada. A quartz arenite or quartzarenite is a sandstone composed of greater than 90% detrital quartz. [1] Quartz arenites are the most mature sedimentary rocks possible, and are often referred to as ultra- or super-mature, and are usually cemented by silica. They ...