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2. Geode - Wikipedia

   en.wikipedia.org/wiki/Geode

   A geode (/ ˈ dʒ iː. oʊ d /; from Ancient Greek γεώδης (geṓdēs) 'earthlike') is a geological secondary formation within sedimentary and volcanic rocks. Geodes are hollow, vaguely spherical rocks, in which masses of mineral matter (which may include crystals) are secluded.

3. Amethyst - Wikipedia

   en.wikipedia.org/wiki/Amethyst

   An amethyst geode that formed when large crystals grew in open spaces inside the rock. The largest amethyst geode found as of 2007 was the Empress of Uruguay, found in Artigas, Uruguay in 2007. It stands at a height of 3.27 meters, lies open along its length, and weighs 2.5 tons. Amethyst is also found and mined in South Korea. [19]

4. 100 “One Size Fits All” Presents That Will Please Everyone

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   #70 National Geographic Break Open Geodes: Set That'll Let Your Giftee Embark On A Thrilling Geological Treasure Hunt And Reveal Enthralling Crystal Formations - A Gift As Exciting As It's ...

5. Gemstone - Wikipedia

   en.wikipedia.org/wiki/Gemstone

   Heat can either improve or spoil gemstone color or clarity. The heating process has been well known to gem miners and cutters for centuries, and in many stone types heating is a common practice. Most citrine is made by heating amethyst, and partial heating with a strong gradient results in "ametrine" – a stone partly amethyst and partly citrine.

6. What a New Jewelry Exhibit Will Teach You About Mother Nature

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7. 4,000 Pounds of Crystal Mined in Arkansas Are Now on ... - AOL

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8. Mineral - Wikipedia

   en.wikipedia.org/wiki/Mineral

   Specific varieties of a species sometimes have conventional or official names of their own. [6] For example, amethyst is a purple variety of the mineral species quartz . Some mineral species can have variable proportions of two or more chemical elements that occupy equivalent positions in the mineral's structure; for example, the formula of ...

9. Gov. Gavin Newsom asks Calif. lawmakers for $25M to fund ...

   www.aol.com/gov-gavin-newsom-asks-calif...

   California Democratic Gov. Gavin Newsom asked state lawmakers Monday for an additional $25 million in funding to cover the cost of legal battles he expects to have with President-elect Donald ...