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Title: Silicate Mineral [Go to resource]
Description: The geode has been broken to reveal the magnesium-rich quartz variant inside. The Amethyst is high quality due to the deep purple colour. The vesical (bubble) is shaped like an elephants foot. A large Amethyst geode from Brazil License: http://creativecommons.org/licenses/by/2.0/uk/ Publisher: Dudley Museums Service Rights holder: Dudley Museums Service Subjects: Geology Temporal: Unknown Source: Black Country History Identifier: http://www.blackcountryhistory.org/colle... Go to resource More Like this...
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