geode slice amethyst crystal rock gemstone |
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navigate by keyword : composition translucent properties impurities background crystalage geological formation wallpaper undefined amethyst gemstone physical cavities eruptive patterns crystals hardness isolated silicate specimen crystal variety ancient forming causing closeup pattern amagate healing mineral natural quality texture center sliced common quartz agates geodes filled beauty bladed chakra nature pastel shapes studio geode slice agate geologic |
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Amethyst gemstone in center of this sliced geode. The agate is the most common variety of chalcedony which is a form of quartz. Agate is identical with quartz in composition and physical properties. Most agates occur in cavities of eruptive rocks or ancient lavas forming geodes filled with Quartz. Agate is Quartz with impurities causing the many different patterns. |
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