Homesessive Web Search

Search results

1. Results From The WOW.Com Content Network

2. 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 ...

3. Category:Quartz varieties - Wikipedia

   en.wikipedia.org/wiki/Category:Quartz_varieties

   Varieties of the mineral Quartz. Subcategories. This category has the following 2 subcategories, out of 2 total. C. Chert‎ (3 C, 23 P) Q. Quartz gemstones‎ (2 C ...

4. Smoky quartz - Wikipedia

   en.wikipedia.org/wiki/Smoky_quartz

   Smoky quartz. Smoky quartz is a brownish grey, translucent variety of quartz that ranges in clarity from almost complete transparency to an almost-opaque brownish-gray or black crystals. [6] The color of smoky quartz is produced when natural radiation, emitted from the surrounding rock, activates color centers around aluminum impurities within ...

5. Chalcedony - Wikipedia

   en.wikipedia.org/wiki/Chalcedony

   Chalcedony ( / kælˈsɛdəni / kal-SED-ə-nee, or / ˈkælsəˌdoʊni / KAL-sə-doh-nee) [2] is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. [3] These are both silica minerals, but they differ in that quartz has a trigonal crystal structure, while moganite is monoclinic.

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

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

   Learn about quartz vs. quartzite ... quartzite and explain which is best for different types of ... more bold or light. Quartzite also comes in a variety of hues, from white, gray, and tan to ...

7. Chert - Wikipedia

   en.wikipedia.org/wiki/Chert

   Chalcedony is a microfibrous quartz. Agate is distinctly banded chalcedony with successive layers differing in color or value. Onyx is a banded agate with layers in parallel lines, often black and white (sardonyx). Magadi-type chert is a variety that forms from a sodium silicate precursor in highly alkaline lakes such as Lake Magadi in Kenya.