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2. Herkimer diamond - Wikipedia

   en.wikipedia.org/wiki/Herkimer_diamond

   Herkimer diamonds are double-terminated quartz crystals discovered within exposed outcrops of dolomite in and around Herkimer County, New York, and the Mohawk River Valley in the US. [1][2] They are not diamonds; the "diamond" in their name is due to both their clarity and well formed faces. Because the first discovery sites were in the village ...

3. Quartz Vs. Granite: Which Stone Is Right For Your ... - AOL

   www.aol.com/quartz-vs-granite-stone-countertops...

   Whereas quartz countertops are man-made, granite is a naturally occurring stone, quarried from the earth, then cut and polished into the countertop material so many know and love. Made of stern ...

4. Zenith (watchmaker) - Wikipedia

   en.wikipedia.org/wiki/Zenith_(watchmaker)

   Zenith SA is a Swiss luxury watchmaker. The company was started in 1865 by Georges Favre-Jacot in Le Locle in the canton of Neuchâtel [1] and is one of the oldest continuously operating watchmakers. Favre-Jacot invented the concept of "in house movements", believing that only through control of the entire watchmaking process could the highest ...

5. Omega Electroquartz - Wikipedia

   en.wikipedia.org/wiki/Omega_Electroquartz

   The Omega Electroquartz was introduced in 1969 as the first Swiss quartz watch to be produced. It was the collaboration of 20 Swiss watch companies and the movement was utilised by Rolex, Patek Phillipe and Omega amongst others. The Beta 21 movement used in the Electroquartz was accurate to 5 seconds per month, far better than any automatic or ...

6. 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 ...

7. Quartz crisis - Wikipedia

   en.wikipedia.org/wiki/Quartz_crisis

   The quartz crisis (Swiss) or quartz revolution (America, Japan and other countries) was the advancement in the watchmaking industry caused by the advent of quartz watches in the 1970s and early 1980s, that largely replaced mechanical watches around the world. [1][2] It caused a significant decline of the Swiss watchmaking industry, which chose ...