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2. Mount Ida, Arkansas - Wikipedia

   en.wikipedia.org/wiki/Mount_Ida,_Arkansas

   05-47690. GNIS feature ID. 2404320 [2] Mount Ida is a city in and county seat of Montgomery County, Arkansas, United States. Founded in 1842, the city saw a silver boom in the 1880s bring early prosperity and economic development to the area. Today, the economy is largely ranching, poultry farming, silviculture, and tourism around Lake Ouachita.

3. Ouachita Mountains - Wikipedia

   en.wikipedia.org/wiki/Ouachita_Mountains

   The Crystal Mountains are located primarily in Montgomery County, Arkansas. They are so named because of the occurrence of some of the world's finest quartz . The Crystal Mountains are generally taller than the nearby Zig Zag Mountains, achieving elevations over 1,800 feet (550 m).

4. 4,000 Pounds of Crystal Mined in Arkansas Are Now on ... - AOL

   www.aol.com/lifestyle/4-000-pounds-crystal-mined...

   Thanks to David Yurman, the American Museum of Natural History has opened a new exhibit of sparkling quartz crystals. 4,000 Pounds of Crystal Mined in Arkansas Are Now on Glorious Display in NYC ...

5. Crater of Diamonds State Park - Wikipedia

   en.wikipedia.org/wiki/Crater_of_Diamonds_State_Park

   Website. Crater of Diamonds State Park. Crater of Diamonds State Park is a 911-acre (369 ha) Arkansas state park in Pike County, Arkansas, in the United States. The park features a 37.5-acre (15.2-hectare) plowed field, one of the few diamond -bearing sites accessible to the public. Diamonds have been discovered in the field continuously since ...

6. List of U.S. state minerals, rocks, stones and gemstones

   en.wikipedia.org/wiki/List_of_U.S._state...

   State, federal district, territory Mineral Rock or stone Gemstone Alabama [1]: Hematite (1967): Marble (1969): Star blue quartz (1990): Alaska [2] [3]: Gold (1968 ...

7. Quartz - Wikipedia

   en.wikipedia.org/wiki/Quartz

   Quartz crystal demonstrating transparency. Pure quartz, traditionally called rock crystal or clear quartz, is colorless and transparent or translucent and has often been used for hardstone carvings, such as the Lothair Crystal. Common colored varieties include citrine, rose quartz, amethyst, smoky quartz, milky quartz, and others. [33]

8. Geology of Arkansas - Wikipedia

   en.wikipedia.org/wiki/Geology_of_Arkansas

   The geology of Arkansas includes deep 1.4 billion year old igneous crystalline basement rock from the Proterozoic known only from boreholes, overlain by extensive sedimentary rocks and some volcanic rocks. The region was a shallow marine, riverine and coastal environment for much of the early Paleozoic as multi-cellular life became commonplace.

9. 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 ...