BEND, Ore. -- Somewhere in the high desert of central Oregon, there's a large cave lined with quartz crystals, which you can walk into. Where is it? There are people who know ... but they're not talking.
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Amethyst is one of the most famous gemstones in our country, but the formation of these giant caves of purple crystal is still a mystery to many people. This wonder of nature attracts tourists and researchers from all over the world to the cities of southern Brazil every year. As volcanoes created these caves... The post Brazil hosts one of the largest amethyst reserves on the planet, but few people know the origin of these caves full of crystal…